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Fox ESS EQ3300-L2 (w) High Voltage Storage Battery

Brand
Fox ESS
Model
EQ3300-L2 (w)
SKU / part number
?
Category
Batteries
chargedreviews.com/batteries/foxess-eq3300-l2-w

Energy and chemistry

Nominal voltage128 V[1]
Rated capacity?
Nominal energy6.4 kWh[1]
Usable energy?
ChemistryLithium Iron Phosphate[1]
Cell format?

Charge and discharge

Continuous charge current25 A[1]
Continuous discharge current?
Maximum charge current50 A[1]
Maximum discharge current50 A[1]
Peak charge current?
Peak discharge current65 A[1]
Continuous output power?
Peak output?
Maximum charge voltage?
Charge cutoff voltage?
Discharge cutoff voltage?

BMS and communication

BMS continuous current?
Communication protocolsCAN[1]
Wireless monitoring?
Inverter compatibility?

Operating temperature

Charging temperature0 to 55 °C[1]
Discharging temperature-10 to 55 °C[1]
Storage temperature-10 to 50 °C[1]
Self-heating?

Mechanical and mounting

Dimensions380 D × 570 W × 380 H mm[1]
Weight75 kg / 165.35 lb[1]
Terminals?
Mounting / format?
Enclosure rating (IP)IP65[1]

Installation (from the manual)

Torque

Main terminal torque?
Communication terminal torque1.2±0.2[1]
Ground terminal torque?

Protection

Fuse or breakerInternal Short Circuit, Over voltage, over current, over temp, Under voltage.[1]Needs confirmation

Clearances and orientation

Installation clearancesRear: ≥20 mm; Top: ≥300 mm; Left: ≥300 mm; Right: ≥300 mm[1]
Mounting orientationStack the battery modules one by one.[1]

Grounding

GroundingPlease ensure the reliability of the battery ground cable.[1]

Communication

Communication portsCAN; RJ45[1]
Address / DIP setting?

Not in the manual: Conductors

System limits

Maximum parallel units?
Series connection?
Maximum system energy?

Page 1 of 2 · Installation values · ? means nothing is recordedAggregated, often community-reported information, not official documentation. Do not rely on it for installation, purchase or compliance decisions; always confirm values with the manufacturer’s official documentation. Charged Reviews accepts no responsibility for errors.

Charged Reviews · Quick reference

Fox ESS EQ3300-L2 (w) High Voltage Storage Battery · EQ3300-L2 (w)

Warranty

Warranty term?
Warranty cycle limit?
Warranted throughput?
Capacity retention?
Cycle rating6,000 cycles to 70% capacity[1]
Estimated throughput?
Coverage starts?
Coverage conditions?
Remedy?
Labor and shipping?
Transfer to another owner?
Registration?

Certifications and listings

UL 1973?
UL 9540?
UL 9540A?
UN 38.3?
IEC 62619?
CE?

Documents and sources

  1. Fox ESS EQ Series user manual, V1.0.1, 2026-07Official user manual · Revision V1.0.1 · Revised Not stated · Checked https://www.fox-ess.com/Public/Uploads/uploadfile/files/20260812/ENEQSeriesManualV1.0.1.pdf