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Fox ESS CQ6-L8 (w) High Voltage Storage Battery

Name: Fox ESS CQ6-L8 (w) High Voltage Storage Battery
Brand: Fox ESS

By Fox ESSSKU not documented

High-voltage stacked battery 460.8 V 104 Ah

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Basic specs47.92 kWhDischarge100 A max.Charge50 A recommendedPeak current: 120 A $ / rated kWhUnavailable WarrantyUnknownSee terms Lifetime productionNot published Size320.76 L^*W: 660 × H: 1,350 × D: 360 mm395.6 kg872.15 lb0.15 kWh/L*CertificatesNone on fileEvidence missing

Key specs

Units

Chemistry: Lithium Iron Phosphate
Official installation manual
Sources
Explicit named CQ6/CQ6(w) family scope.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 5, Notes on This Manual
Documented
Nominal energy: 47.92 kWh
Official installation manual
Sources
Exact printed CQ6 model table; no sibling model or calculated total is used.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 45, CQ6-L8 (w) Nominal energy (kWh)
Documented
Nominal voltage: 460.8 V
Official installation manual
Sources
Exact printed CQ6 model table; no sibling model or calculated total is used.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 45, CQ6-L8 (w) Nominal voltage (V)
Documented
Rated capacity: 104 Ah
Official installation manual
Sources
Exact printed CQ6 model table; no sibling model or calculated total is used.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Rated capacity (Ah)
Documented
Maximum discharge current: 100 A
Official installation manual
Sources
Exact printed CQ6 model table; no sibling model or calculated total is used.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Max. charge/discharge current (A)
Documented
Charge termination current: 2 A
Official installation manual
Sources
Exact printed CQ6 model table; no sibling model or calculated total is used.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Constant current and voltage charging cut-off current (A)
Documented
Maximum charge current: 100 A
Official installation manual
Sources
Exact printed CQ6 model table; no sibling model or calculated total is used.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Max. charge/discharge current (A)
Documented
Peak discharge current: 120 A
Official installation manual
Sources
Peak for 60 seconds as printed; not continuous current.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Peak discharge current (60s) (A)
Documented

8 specs not documented yet: usable energy, fire response, address / dip setting (manual), maximum altitude m, terminal torque (manual), ground terminal torque (manual), external fuse breaker rating, power cable vertical lengthHelp fill in ›

All specs69

Chemistry: Lithium Iron Phosphate
Official installation manual
Sources
Explicit named CQ6/CQ6(w) family scope.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 5, Notes on This Manual
Documented
Nominal energy: 47.92 kWh
Official installation manual
Sources
Exact printed CQ6 model table; no sibling model or calculated total is used.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 45, CQ6-L8 (w) Nominal energy (kWh)
Documented
Usable energy: Not documented
Nominal voltage: 460.8 V
Official installation manual
Sources
Exact printed CQ6 model table; no sibling model or calculated total is used.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 45, CQ6-L8 (w) Nominal voltage (V)
Documented
Rated capacity: 104 Ah
Official installation manual
Sources
Exact printed CQ6 model table; no sibling model or calculated total is used.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Rated capacity (Ah)
Documented
Maximum discharge current: 100 A
Official installation manual
Sources
Exact printed CQ6 model table; no sibling model or calculated total is used.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Max. charge/discharge current (A)
Documented
Charge termination current: 2 A
Official installation manual
Sources
Exact printed CQ6 model table; no sibling model or calculated total is used.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Constant current and voltage charging cut-off current (A)
Documented
Maximum charge current: 100 A
Official installation manual
Sources
Exact printed CQ6 model table; no sibling model or calculated total is used.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Max. charge/discharge current (A)
Documented
Peak discharge current: 120 A
Official installation manual
Sources
Peak for 60 seconds as printed; not continuous current.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Peak discharge current (60s) (A)
Documented
Operating voltage range: 417.6 to 525.6 V
Official installation manual
Sources
Own exact model column, not a family-wide range or calculated range.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 45, CQ6-L8 (w) Battery voltage range (V)
Documented
Recommended charge current: 50 A
Official installation manual
Sources
Printed recommended charge and discharge current, not a CCCV standard charging-current row.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Recommend charge/discharge current (A)
Documented

Lifetime production

Not published

Published claims and calculations are not independently tested lifetime output.

Communications: CAN
Official installation manual
Sources
Exact printed CQ6 model table; no sibling model or calculated total is used.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Communication interfaces
Documented
Storage temperature: -10 to 50 °C14 to 122 °F converted
Official installation manual
Sources
Exact model table. The separately retained storage chapter has time, SOC and humidity conditions.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Storage temperature (°C)
Documented
Fire protection: Each battery unit is equipped with a fire protection module using a new type of aerosol fire extinguishing device.
Official installation manual
Sources
Manufacturer claim about an internal aerosol fire-protection device, separate from external emergency extinguishers. PDF page 11 prints activation at ≥170°C and discharge time ≤5 seconds, requires immediate replacement after activation, and warns against unauthorized disassembly or touching the device before the casing cools. Assembled-system context, not standalone module operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 9
Documented
Charging temperature: 0 to 55 °C32 to 131 °F converted
Warm-up function off; warm-up-on limits retained separately with their condition.Official installation manual
Sources
The printed pair is charge/discharge respectively. Footnote *1: warm up function off. Internal cell-temperature controls are separate.
-25 to 55 °C
Warm up function on, a separate operating condition. All batteries must be warm-up versions; no conflict with warm-up-off limits.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Operating charge/discharge temperature
Documented
Discharging temperature: -10 to 55 °C14 to 131 °F converted
Warm-up function off; warm-up-on limits retained separately with their condition.Official installation manual
Sources
The printed pair is charge/discharge respectively. Footnote *1: warm up function off. Internal cell-temperature controls are separate.
-25 to 55 °C
Warm up function on, a separate operating condition. All batteries must be warm-up versions; no conflict with warm-up-off limits.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Operating charge/discharge temperature
Documented
Expansion requirements: Please ensure on installation site that the deviation of voltages between new batteries and every single present battery is less than0.5V.; Recommend to check the new batteries mounted on-site comply to the warranty scope or have ever been re-charged within 5 months; on top of that, please make sure the SOC of present battery system onsite is50%±5%.; If a battery is replaced or added for capacity expansion, each battery’s SOC should be consistent. The max. SOC difference should be between ±5%.; If users want to increase their battery system capacity, please ensure that the SOC of the existing system capacity is about50%. The manufacturer date of the new battery shall not exceed12 months; in case of exceeding12 months. please charge the new battery to around50%.
Official installation manual
Sources
Separate new/existing battery instructions retained; do not combine manufacture-date intervals with first-installation interval. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF pages 15, 38
Documented
Grounding (manual): Before wiring, ensure the grounding cable (Item I) is securely connected. Please ensure the reliability of the battery ground cable.
Grounding cable item label differs between the package and wiring note
PDF page 19 labels the Grounding cable K and the PV connector removal tool I. PDF page 28 calls the grounding cable Item I. Both labels remain as printed; no component is relabeled.
Official installation manual
Sources
Native PDF28 earth connection and note read visually. The note says Item I, but native PDF19 package labels Grounding cable Item K and PV connector removal tool Item I. Keep discrepancy; do not relabel silently. No numeric earth-terminal torque/ground conductor gauge located. CQ-M external Earth Terminal on complete system; not a separately labeled CQ-S external terminal.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF pages 8, 19, 28
Documented
Monitoring: FoxCloud APP or FoxCloud Web platform
Official installation manual
Sources
Battery monitored and controlled by inverter after successful installation/commissioning and correct communication. Inverter terminal-layout diagram reference only; actual wiring per exact inverter manual. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 32
Documented
Startup without grid power: Under special circumstances when both PV and Grid power are out of order, the battery can be activated through the "Black Start" function. This means that our energy storage inverter and battery can continue to operate.; Turn on the DC Switch, press and hold the “POWER” button for 3 seconds, then release.; Press the “POWER” button three times in succession within 4 seconds (Complete within 30 seconds after the battery system starts up).; The Status LED remains solid green, indicating successful activation of Black Start mode.; Ensure correct battery-inverter connection prior to Black Start. No wiring modifications during black start.
Official installation manual
Sources
All full printed operation passages/warning retained. Not generic inverter compatibility or standalone-module capability. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 31
Documented
Installation clearances (manual): Rear ≥20 mm; top ≥900 mm; left ≥600 mm; right ≥600 mm.
Official installation manual
Sources
Native diagram read visually. No numerical front clearance printed. Prose refers to the figure for specific distances and says local installation/safety-clearance rules apply; module exposed to ambient air and cooled by natural convection. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 20
Documented
Fire response: Sources disagree
The manual prints different fire-extinguisher directions
PDF page 15 says dry powder only; PDF page 16 names FM-200 or CO2 for the battery and ABC for other parts. Both full passages are retained; no procedure is selected.
UnresolvedOfficial installation manual
Why values differ
Two complete fire-agent passages in one manual differ. Preserve both and warning; select no fire procedure. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
In case of fire, use only dry powder fire extinguisher. Liquid extinguishers should not be used.
Literal printed passage or diagram label, retained with its physical PDF locator. No instruction is selected between differing passages.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
In situations where the battery is on fire, if it is safe to do so, disconnect the battery pack by turn off the circuit breaker to shut off the power to the system. Use FM-200 or CO2 fire extinguisher for the battery and an ABC fire extinguisher for the other parts of the system. Under any fire situation, please evacuate the people from the building immediately before trying to extinguish it.
Literal printed passage or diagram label, retained with its physical PDF locator. No instruction is selected between differing passages.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF pages 15, 16
Sources disagree
Cooling: natural convection
Official installation manual
Sources
The battery module must be exposed to ambient air; covering or shielding may cause it to stop operating. No thermal rating inferred.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 20, Clearance, fourth note
Documented
Address / DIP setting (manual): Not documented
Official installation manual
Details
No address/DIP-setting procedure located in full manual text and viewed installation/operation pages. ModuleAddressingfailed fault label is not a setting procedure. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF pages 8, 25, 28, 35, 37
Not documented
Conductor sizes: DC output cable (Wire gauge 16 mm²)
Official installation manual
Sources
Native package Item L DC output cable. This does not state ground-cable size and does not become an AWG conversion. CQ-M package/system external DC output connection; not separately supplied CQ-S cable.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 19
Documented
Low SOC storage: 0~35℃; Power-Off SOC Before Storage0%≤SOC<5%; Maximum Charge Interval7days. When the battery SOC decreases to0%, charge the batteries within7days. Permanent battery faults caused by delayed charge due to customer reasons are beyond the warranty scope.
Official installation manual
Sources
Printed low-SOC context, not warranty duration. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 38
Documented
Protective class: Class Ⅰ
Official installation manual
Sources
Exact printed CQ6 model table; no sibling model or calculated total is used.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Protective class
Documented
Site restriction: Do not install the equipment outdoors in salt-affected areas because it may be corroded. A salt-affected area refers to the region within1000 m of the coast or prone to sea breeze. Regions prone to sea breeze vary with weather conditions (such as typhoons and monsoons) or terrains (such as dams and hills).
Official installation manual
Sources
Keep full condition; not a country/market basis. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 15
Documented
Storage schedule: Below -20℃: Not allowed.; -20~0℃; relative humidity10%~90%; storage time≤1months;20%≤SOC≤50%.; 0~35℃; relative humidity10%~90%; storage time≤6months;20%≤SOC≤50%.; 35~55℃; relative humidity10%~90%; storage time≤1months;20%≤SOC≤50%.; Above55℃: Not allowed.
The storage chapter and exact model tables print different ranges
PDF page 18 describes storage from -20°C to +55°C with time, relative humidity, SOC and recharge conditions. PDF pages 40-47 print -10~50°C for the exact models. Both contexts are retained without replacing either range or choosing a storage procedure.
Official installation manual
Sources
Storage chapter conditions, separate from PDF40-47 table storage temperature-10~50℃. Retain both with their own locators/conditions; no silent selection. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 18
Documented
Warm up function: This feature is exclusively available in the warm-up versions.; Please check that the wiring is properly connected and that all batteries are the warm up versions; otherwise, the Warming up function will not operate.; Warming up control is based on the internal cell temperature of the battery, rather than the ambient temperature.
Official installation manual
Sources
PDF page 13 states that warm-up control uses internal cell temperature, rather than ambient temperature: discharge only above -10°C and charge only above 0°C. All batteries must be warm-up versions for the function to operate. These are distinct from the exact model-table operating ranges. Assembled-system context, not standalone module operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF pages 11, 13
Documented
Cable bending radius / connector notes (manual): R: ≥6×D; angle ≥90°
Official installation manual
Sources
Native bend diagram; D labels cable diameter. No numeric radius calculated from wire area or diameter. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 28
Documented
Cycle life cycles: 6,000 cycles
≥6000 cycles @25°C @70%SOH, as printed.Official installation manual
Sources
Printed lower bound ≥6000 at 25°C and 70% SOH. No unprinted DoD or C-rate inferred.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Cycle life
Documented
Battery fuse or breaker (manual): Inverter interface protection: Over Voltage, Over Current, External Short Circuit, Reverse Polarity, Ground Fault, Over Temp, In Rush Current.; Battery protection: Internal Short Circuit, Over Voltage, Over Current, Over Temp, Under Voltage.
Official installation manual
Sources
Printed protection claims, not external protection device ratings. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 9
Documented
Maximum altitude m: Not documented
Official installation manual
Details
No altitude row in this exact system table. Individual module ≤2000 m is not transferred.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF pages 45-47
Not documented
Start up procedure: When the inverter is connected to the PV and the grid and both are operating normally, turn on the battery DC Switch. Press the POWER Switch and hold it for 3 seconds, then release. The Status LED is blinking green and indicates that the system is working normally.
Official installation manual
Sources
Section6.1. Opening note says grid-connected inverter turned on first; all operations comply local electrical standards; check power/communication cables. No second manual/procedure selected. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 30
Documented
Terminal torque (manual): Not documented
Official installation manual
Details
No numeric DC power terminal torque located; plugs illustrated without torque. RJ45 1.2±0.2N·m and mounting torque not substituted. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF pages 8, 23, 25, 26, 28
Not documented
Battery designation: IFpP53/149/113[(18S)8S]M/-10+50/90
Official installation manual
Sources
Literal native cell with line wraps joined; no designation decoding or ordering code inferred.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 45, CQ6-L8 (w) Battery designation
Documented
Communication ports (manual): CAN, RJ45. CONN.1 PIN/CONN.2 PIN: 1 A-START; 2 GND; 3 /; 4 BMS-CANL; 5 BMS-CANH; 6 BMS-CANH; 7 BMS-CANL; 8 /. Default wire harness PIN to PIN.
Official installation manual
Sources
Native CQ-M external interface and PDF28 pin table. PDF25 says BAT side to battery and INV side to inverter. PDF28 says connect other end into inverter BMS port; follow inverter user manual. No external RJ45 assigned to CQ-S. CQ-M external interface on complete system; do not assign standalone RJ45/CAN port to CQ-S.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF pages 8, 25, 28
Documented
Shut down procedure: Press and hold the POWER Switch for at least 5 seconds until all of the main battery LEDs (BMS Status LED and SOC LED) begin blinking. Once they start blinking, release the switch. The lights will automatically turn off after 5 seconds. Then, turn off the DC Switch.
Official installation manual
Sources
Section6.2 complete procedure. PDF29 disassembly Step1 states POWER off then DC off, without timings; retain as separate disassembly context, not contradictory control topology. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 30
Documented
Communication terminal torque (manual): 1.2±0.2
Official installation manual
Sources
Step3: Use an open-end spanner to lock the body onto the RJ45 board end connector; torque: 1.2±0.2N·m. Tolerance retained. Not DC or earth torque. CQ-M RJ45 external connector on complete system.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 25
Documented
Installation area m2: 10 m²
No less than 10 m² for indoor installation, as printed.Official installation manual
Sources
For indoor installation scenarios, the installation area must be no less than 10 m². Printed minimum, not a system-specific area calculation. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 20
Documented
Mounting orientation (manual): Install the bottom battery module, level it using the footstand, and use a spirit level to verify that it is level. Stack the battery modules one by one.
Official installation manual
Sources
Native steps show standing stack, CQ-M on top, fixed to wall; floor must support weight and be hard/level outdoors. No wall-hung or horizontal installation inferred. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF pages 22, 23
Documented
Disassembly procedure: First turn off the POWER Switch, and then turn off the DC Switch,all LEDs are off when POWER Switch is turned off. After shutting down the system, there is no current flow between the support units. Then disconnect the wiring harness connected to the inverter.
Official installation manual
Sources
Native Step1. Subsequent steps remove waterproof cover, screws, CQ-M and CQ-S; do not touch stacking connector male label on figure. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 29
Documented
Discharge capacity: 90@-20±2℃ @1/3C; 104@25±2℃ @1/3C; 104@55±2℃ @1/3C
Official installation manual
Sources
Temperature, tolerance and rate retained for each printed figure; separate from rated capacity.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Discharge capacity (Ah)
Documented
Fixing bracket layout: When L ≤ 6, a pair of Item C is installed on CQ-M;; When L >6, a pair of Item C is installed on CQ-M, and install an additional pair of Item C in the middle layer of the CQ-S modules.; When 11 ≤ L ≤14, a pair of Item C is installed on CQ-M, and install 2 additional pairs of Item C on 5th layer and 10th layer CQ-S.
Official installation manual
Sources
L is number of layers in battery system. Preserve overlapping printed conditions, do not choose or simplify a bracket procedure. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 24
Documented
Installation location: indoors or outdoors
Official installation manual
Sources
Assembled-system installation context. The salt-affected outdoor restriction and local regulations remain separately cited.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 20, Clearance, first note
Documented
Depth of discharge: 90 %
Official installation manual
Sources
Exact table value; no usable energy derived.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Depth of discharge (%)
Documented
Ground terminal torque (manual): Not documented
Official installation manual
Details
No numeric earth-terminal torque located in full text and viewed installation diagrams. M6/M5 3~4 N·m PDF23 are mounting torques, not substituted. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF pages 8, 23, 25, 28
Not documented
Heat source clearance m: 2 m6.6 ft converted
At least 2 meters from heat sources, as printed.Official installation manual
Sources
The battery system must be kept at least 2 meters away from heat sources. Printed minimum. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 20
Documented
Recommended discharge current: 50 A
Official installation manual
Sources
Printed recommended charge and discharge current, not a CCCV standard charging-current row.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 46, Recommend charge/discharge current (A)
Documented
Mounting fastener torque: Step 5: M6, 3~4 N·m.; Step 6: M5, 3~4 N·m.
Official installation manual
Sources
Both native torque callouts read visually. These are bracket/module mounting screws, not power or earth-terminal torque. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 23
Documented
Mounting hole dimensions: φ: 8mm; D: >50mm
Official installation manual
Sources
Native Step4 drill callout; bore depth strict greater-than as printed, not ≥50. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 23
Documented
Power cable installation: For the DC output cable, connect the end marked "DC+" and "DC-" to the battery, and connect the opposite end marked "BAT+" and "BAT-" to the inverter.; Do not interchange the positive and negative terminals of the battery.
Official installation manual
Sources
Full warning retained. Native diagram uses keyed plug connections; no terminal type inferred. CQ-M/system external DC connector.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 26
Documented
Storage capacity loss claim: If the battery is stored over one year, 5%-8% of the capacity may lose irreversibly.
Official installation manual
Sources
Maker statement, not independent test. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 18
Documented
Battery module configuration: 1CQ6-M (w)+7CQ6-S (w)
Official installation manual
Sources
Printed counts only; no totals derived.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 45, CQ6-L8 (w) The number of batteries
Documented
External fuse breaker rating: Not documented
Official installation manual
Details
No numerical external fuse or breaker rating located in independently extracted full 68-page text or reviewed installation diagrams. Circuit-breaker mention in Fire Situation and HVB/Module FUSE fault labels do not give a rating. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF pages 16, 25, 26, 28, 37
Not documented
Inverter voltage requirement: When used with an inverter, the battery system voltage must meet the inverter battery port voltage range.
Official installation manual
Sources
No inverter model, rating or compatibility list inferred. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 24
Documented
Protective cover instruction: The protective cover is optional.
Official installation manual
Sources
Different from required waterproof cover PDF23. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 27
Documented
Storage recharge instruction: The battery module should be stored in an environment with a temperature range between -20℃- +55℃, and charged regularly according to the table below with no more than 0.5 C(A C-rate is a measure of the rate at which a battery is discharged relative to its maximum capacity.)to the SOC of50% after a long time of storage.
Official installation manual
Sources
Exact extracted paragraph from independently parsed original, spacing may be typographic extraction. No own recharge schedule inferred. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 18
Documented
Waterproof cover instruction: The screws must be installed. The waterproof cover must be installed.
Official installation manual
Sources
Both notes printed. Protective cover in PDF27 is separately described as optional, so do not conflate covers. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 23
Documented
Power cable vertical length: Sources disagree
Different minimum vertical cable lengths printed on the same page
The diagram prints ≥100 mm while the warning prose says greater than30mm. Both are retained; no selected minimum is supplied.
UnresolvedOfficial installation manual
Why values differ
Native diagram prints ≥100 mm; adjacent warning prose says vertical length greater than30mm. Same diagram/prose context retained without choosing an interpretation or replacing either value. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
≥100 mm
Literal printed passage or diagram label, retained with its physical PDF locator. No instruction is selected between differing passages.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Make sure that the power cable connected to the battery is connected vertically and that the vertical length is greater than30mm. If the cable is bent close to the terminals, it may cause poor line contact and result in burnt terminals.
Literal printed passage or diagram label, retained with its physical PDF locator. No instruction is selected between differing passages.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 28
Sources disagree
System composition requirements: CQ-S is the battery module, and CQ-M includes system controller and battery module. Ensure that each system has only 1 CQ-M and a maximum of 13 CQ-S.
Official installation manual
Sources
Exact family roles printed in introduction. PDF24 prints 1 CQ-M and CQ-S less than 13(1~13) pieces, with diagram ≤13 layers; do not silently correct the wording. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 7
Documented
Fire protection discharge time s: 5 s
≤5 seconds, as printed.Official installation manual
Sources
Printed upper bound for the internal aerosol fire-protection device, not a battery operating temperature or external fire procedure.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 11, Fire Protection Function
Documented
First installation manufacture interval: For the first installation, the interval among manufacture dates of battery modules shall not exceed 3 months.
Official installation manual
Sources
Printed maximum age difference, not product service life. assembled CQ6 family system; on a module record this describes its installation through the stack, not standalone operation.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 18
Documented
Fire protection activation temperature: 170 °C338 °F converted
≥170°C, as printed.Official installation manual
Sources
Printed lower bound for the internal aerosol fire-protection device, not a battery operating temperature or external fire procedure.
Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document
Location: PDF page 11, Fire Protection Function
Documented

Published claims and calculations, not independent test results.

Documents

1 on file

PDF
Fox ESS CQ Series user manual, V1.0.5, 2026-07OfficialFox ESSOfficial installation manualJuly 2026
Our copy is kept as private evidence and is not available to download. SHA-256: 264b09fba8dde64c98b6938bd5e509463b9485625d520bd26cfc4f6ce9400f2c, captured Nov 4, 2026.
Source details
Revision
V1.0.5
Revision date
July 2026
Archived copy captured on 2026-11-04.
Location: PDF page 1 scope; PDF page 2 revision/date; PDF pages 48-51 CQ6.6 (w) exact tables
Retrieved Nov 4, 2026
Original official PDF from Alternative Research native download-filter capture; independently verified and reviewed. English, labeled Global; no country applicability inferred. Copyright notice retained, no figure or photo cropped for public reuse.
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Evidence score

Research pending0% documented

The Evidence score uses the priorities you choose. It counts published documents, such as certificates and warranty terms, and it compares a documented figure with the best documented figure of the same kind. It does not count owner reviews, and it is not a verdict on product quality or on how many people have reviewed it. A low score can mean little is documented, or that a documented figure is below the best of its kind. Undisclosed data scores 0.

Missing for this product: Certificates evidence needed; Warranty term needed; Warranty energy disclosure evidence needed; Lifetime / capacity evidence needed; Cell model disclosure evidence needed.

High-voltage stacked batteries · Rated capacity

The warranty term and the lifetime energy are each scored against the best documented value for a home storage battery: a value earns its share of that best, times the weight. A documented value always earns points; an undisclosed one earns 0.

Lifetime / capacityResearch pending0 / 20

No qualifying figure · 20% weight

Not published. No lifetime-production bonus.

Not documented. Undisclosed data scores 0.

Official installation manual: Fox ESS CQ Series user manual, V1.0.5, 2026-07 Rev V1.0.5 · July 2026 · Checked Nov 4, 2026 · Earlier document

Research pending, 0 points: Certificates, Warranty term, Warranty energy disclosure, Cell model disclosure.

Computed from public specifications and evidence records. Warranty duration is not service quality; certificate evidence points are not a safety rating. Compatibility and installation limits still apply.

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Certificates

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Parts and accessories

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Model history

Model identity

Model: CQ6-L8 (w)

Manufacturer SKU unknown

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Community discussions

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Fox ESSProducts, reviews and history

4.0 (1)

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