Manufacturer and seller images. Configuration examples may include additional equipment.
Image source: SUNSYNK-W5.3 battery (the white unit; the figure also shows the black finish beside it), from the product figure on page 1 of Sunsynk's own W5.3 datasheet, captured on October 23, 2026. Figure from the manufacturer's document, page 1.No sellers found.
The product page prints "SUNSYNK-W5.3" in the row "SKU / Model Number"; the user manual and the datasheet print the same model.
Official product page: Sunsynk product page: W Series 5.32kWh (October 23, 2026 capture) Checked · Earlier documentOfficial user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: Product page, Specifications table, row "SKU / Model Number"; user manual and datasheet, model row
Documented
Printed as "LiFePO4" in the row "Battery Chemistry" of the user manual and the datasheet.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Battery Chemistry"
Documented
Printed as "Energy (kWh) 5.32" in the user manual and the datasheet.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Energy"
Documented
Printed as "Usable Energy (kWh) 1 4.79" in the user manual and the datasheet; the footnote gives the test conditions "90% DOD, 0.5C charge & discharge at 25° C" and says system usable energy may vary.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Usable Energy"
Documented
Printed as "Nominal Voltage (V) 51.2" in the user manual and the datasheet.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Nominal Voltage"
Documented
Printed as "Capacity (Ah) 104" in the user manual and the datasheet.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Capacity"
Documented
Printed as "Max. 2 100" under the heading "Charge/Discharge Current" in the user manual and the datasheet, one figure for charge and charge. The current is affected by temperature and SOC.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Charge/Discharge Current, Max."
Documented
Printed as "Max. 2 100" under the heading "Charge/Discharge Current" in the user manual and the datasheet, one figure for charge and discharge. The current is affected by temperature and SOC.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Charge/Discharge Current, Max."
Documented
Printed as "Peak (2mins,25ºC) 150" under the heading "Charge/Discharge Current" in the user manual and the datasheet: a peak for 2 minutes at 25 °C.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Charge/Discharge Current, Peak (2mins,25ºC)"
Documented
Printed as "LiFePO4" in the row "Battery Chemistry" of the user manual and the datasheet.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Battery Chemistry"
Documented
Printed as "Energy (kWh) 5.32" in the user manual and the datasheet.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Energy"
Documented
Printed as "Usable Energy (kWh) 1 4.79" in the user manual and the datasheet; the footnote gives the test conditions "90% DOD, 0.5C charge & discharge at 25° C" and says system usable energy may vary.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Usable Energy"
Documented
Printed as "Nominal Voltage (V) 51.2" in the user manual and the datasheet.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Nominal Voltage"
Documented
Printed as "Capacity (Ah) 104" in the user manual and the datasheet.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Capacity"
Documented
Printed as "Max. 2 100" under the heading "Charge/Discharge Current" in the user manual and the datasheet, one figure for charge and charge. The current is affected by temperature and SOC.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Charge/Discharge Current, Max."
Documented
Printed as "Max. 2 100" under the heading "Charge/Discharge Current" in the user manual and the datasheet, one figure for charge and discharge. The current is affected by temperature and SOC.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Charge/Discharge Current, Max."
Documented
Printed as "Peak (2mins,25ºC) 150" under the heading "Charge/Discharge Current" in the user manual and the datasheet: a peak for 2 minutes at 25 °C.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Charge/Discharge Current, Peak (2mins,25ºC)"
Documented
Printed as "Operating Voltage (V) 43.2~57.6" in the user manual and the datasheet.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Operating Voltage"
Documented
Printed as "Recommend 2 50" under the heading "Charge/Discharge Current" in the user manual and the datasheet; the footnote says the current is affected by temperature and SOC. The same figure is the recommended discharge current.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Charge/Discharge Current, Recommend"
Documented
Printed as "Cycle Life ≥6000 (25±2°C,90%DOD,0.5C/1C,70% EOL)" in the user manual and the datasheet: at least 6000 cycles under the printed test conditions (temperature, depth of discharge, C-rates, end-of-life capacity).
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Cycle Life"
Documented
Printed as "Warranty Period 3 16MWh@70% EOL" in the user manual and the datasheet; the footnote says the warranty ends at whichever is reached first, the warranty period or the energy throughput.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Life Cycle Power During Warranty Period"
Documented
Published claims and calculations are not independently tested lifetime output.
Printed as "Weight (kg) 46" in the user manual and the datasheet.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Weight"
Documented
Printed as "Dimension (W x H x Dmm) 440 x 620 x 135" in the user manual and the datasheet; recorded as width, height and depth in millimeters.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Dimension"
Calculated
Printed as "IP Rating of Enclosure IP65" in the user manual and the datasheet.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "IP Rating of Enclosure"
Documented
Printed as "Communication Port CAN2.0, RS485" in the user manual and the datasheet.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Communication Port"
Documented
Printed as "Max.32 pcs in parallel (170kWh)" in the user manual and the datasheet.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Scalability"
Documented
Printed as "Storage Temperature 0°C ~ +35°C" in the user manual and the datasheet.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Storage Temperature"
Documented
Printed as "Charge: -10°C ~ +55°C" in the row "Working Temperature" of the user manual and the datasheet.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Working Temperature"
Documented
Printed as "Discharge: -20°C ~ +55°C" in the row "Working Temperature" of the user manual and the datasheet.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Working Temperature"
Documented
Printed as "Certification IEC62619, CE, UK, CEC, UN38.3" in the user manual and the datasheet. Manufacturer compliance claims; no certificate or issuer record was checked.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Certification"
Documented
Printed as "Recommend 2 50" under the heading "Charge/Discharge Current" in the user manual and the datasheet; the footnote says the current is affected by temperature and SOC. The same figure is the recommended charge current.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Charge/Discharge Current, Recommend"
Documented
Published claims and calculations, not independent test results.
Archived copy captured on 2026-10-23.
Location: Technical data tables
Retrieved
Sunsynk's own datasheet (PDF), linked from the product page of sunsynk.org and captured on October 23, 2026. Manufacturer claims, not independent tests.
Archived copy of a document published by Sunsynk. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what Sunsynk published. Original address: https://www.sunsynk.org/uploads/1779960421871-Sunsynk_W5-3_Datasheet_v2_English.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: cca5bd496d32d0a9688d554d615ec0ddaf9a2f8bea69081b8c5a3fd74a5ee2e3
Archived copy captured on 2026-10-23.
Location: Technical data section
Retrieved
Sunsynk's own user manual (PDF), linked from the product page of sunsynk.org and captured on October 23, 2026. Manufacturer claims, not independent tests.
Archived copy of a document published by Sunsynk. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what Sunsynk published. Original address: https://www.sunsynk.org/uploads/1779960426910-SUNSYNK-W5-3_UserManual_v1_English.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 5cd16e751df2e0d5c70a1671d4944f72025fbc4007519a772b135e677fa7d117
Archived copy captured on 2026-10-23.
Location: Product heading and Specifications table
Retrieved
Sunsynk's own product page (sunsynk.org), captured on October 23, 2026 with the paced research fetcher; the content is whatever the address served on that date. Manufacturer statements, not independent tests; the page carries no revision date.
Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.
Archived copy of a document published by Sunsynk. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what Sunsynk published. Original address: https://www.sunsynk.org/uploads/1779960421871-Sunsynk_W5-3_Datasheet_v2_English.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: cca5bd496d32d0a9688d554d615ec0ddaf9a2f8bea69081b8c5a3fd74a5ee2e3
Archived copy of a document published by Sunsynk. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.
Archived copy, unaltered, kept as a record of what Sunsynk published. Original address: https://www.sunsynk.org/uploads/1779960426910-SUNSYNK-W5-3_UserManual_v1_English.pdf. Copyright and takedown
Embedded dates are file metadata, not independent proof of publication.
SHA-256: 5cd16e751df2e0d5c70a1671d4944f72025fbc4007519a772b135e677fa7d117
Read from "Warranty Period 3 16MWh@70% EOL" in the user manual and the datasheet: the throughput is stated at 70% end of life (EOL).
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Life Cycle Power During Warranty Period"
Documented
Printed as "Warranty Period 3 16MWh@70% EOL" in the user manual and the datasheet; the footnote says the warranty ends at whichever is reached first, the warranty period or the energy throughput.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentLocation: User manual, Technical data table; datasheet, Technical specifications table, row "Life Cycle Power During Warranty Period"
Documented
No sellers found.
No seller price history.
No reviews yet
Own one? A verified review needs a receipt and a serial number photo, and counts 19× in the owner rating.
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 details. This number counts only the evidence recorded so far. The source review for this product is not finished, or the maker has not disclosed enough, so the number can only go up.
Missing for this product: Certificates evidence needed; Warranty term needed; Warranty energy disclosure evidence needed; Cell model disclosure evidence needed.
48 V · Wall / floor · 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.
0 evidence points · 10% weight
No qualifying quantified warranty energy recorded. This is an evidence gap, not a performance judgment.
0 / 100 × 10 = 0 points.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentCycle rating disclosed · 20% weight
Documented cycle rating earns 20% of this criterion. More evidence is needed to compare lifetime MWh per kWh.
20 × 0.2 = 4 points.
Official user manual: Sunsynk user manual: W Series battery W5.3, v1 Rev v1 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: W Series battery W5.3, v2 Rev v2 · Checked · Earlier documentResearch pending, 0 points: Certificates, Warranty term, 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.
No certificates on file. Certificate guide
No sourced accessories or replacement parts listed yet.
Manufacturer SKU SUNSYNK-W5.3
No historical observations recorded yet.
No discussions linked yet. Search DIY Solar Forum
No recalls or legal notices on file; this is not a complete recall or court search. All notices · Report a notice
Something wrong that is not one of the values above?
Prices · price basis. * Calculated; estimates labeled. Value needs confirmation; select it for the reason.
