Charged Reviews
Sunsynk L5.3 5.32 kWh LiFePO4 Wall-Mounted Battery: SUNSYNK-L5.3 battery, the product figure on page 1 of Sunsynk's own L5.3 datasheet, captured on October 23, 2026. Figure from the manufacturer's document, page 1.
Photo 1 of 1. 1 photo · Image from sunsynk.org
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Manufacturer and seller images. Configuration examples may include additional equipment.

Image source: SUNSYNK-L5.3 battery, the product figure on page 1 of Sunsynk's own L5.3 datasheet, captured on October 23, 2026. Figure from the manufacturer's document, page 1.

Sunsynk L5.3 5.32 kWh LiFePO4 Wall-Mounted Battery

By SunsynkSKU SUNSYNK-L5.3

DC battery moduleWall / floor51.2 V104 Ah
Evidence score14/100Missing details
No owner reviews yet · Write the first
Basic specs5.32 kWhDischarge100 A max.Charge50 A recommendedPeak current: 150 A$ / rated kWhUnavailableWarranty10 years · 16 MWh70% capacity retention · MWh unconfirmedLifetime production16 MWhWarranty limitSize36.83 L*W: 440 × H: 620 × D: 135 mm46 kg101.41 lb0.14 kWh/L*CertificatesNone on fileEvidence missing

Key specs

Units
SKU
SUNSYNK-L5.3
Official user manual
Sources

The product page prints "SUNSYNK-L5.3" in the row "SKU / Model Number"; the user manual and the datasheet print the same model.

Official product page: Sunsynk product page: L Series 5.32kWh (October 23, 2026 capture) Checked · Earlier documentOfficial user manual: Sunsynk user manual: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: Product page, Specifications table, row "SKU / Model Number"; user manual and datasheet, model row

Documented

Chemistry
LFP
Official user manual
Sources

Printed as "Lithium Ferro Phosphate (LifePO4 or LFP)" in the row "Battery Chemistry" of the user manual and the datasheet.

Official user manual: Sunsynk user manual: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Battery Chemistry"

Documented

Nominal energy
5.32 kWh
Official user manual
Sources

Printed as "Energy 5.32 kWh" in the user manual and the datasheet.

Official user manual: Sunsynk user manual: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Energy"

Documented

Usable energy
4.79 kWh
The datasheet label prints a different usable energy

The product identification label on page 2 of the datasheet prints "Battery Usable Energy 5.32 kWh", the figure the technical tables give as total energy; the user manual and the datasheet technical table print "Usable Energy [1] 4.79 kWh" at 90% DOD, which is recorded.

Official user manual
Sources

Printed as "Usable Energy [1] 4.79 kWh" 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.

5.32 kWh

The datasheet's product identification label prints "2 Battery Usable Energy 5.32 kWh".

Official datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document
Official user manual: Sunsynk user manual: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Usable Energy"

Documented

Nominal voltage
51.2 V
Official user manual
Sources

Printed as "Nominal Voltage 51.2 V" in the user manual and the datasheet.

Official user manual: Sunsynk user manual: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Nominal Voltage"

Documented

Rated capacity
104 Ah
Official user manual
Sources

Printed as "Capacity 104 Ah" in the user manual and the datasheet.

Official user manual: Sunsynk user manual: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Capacity"

Documented

Maximum discharge current
100 A
Official user manual
Sources

Printed as "Max. [2] 100 A" 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: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Charge/Discharge Current, Max."

Documented

Maximum charge current
100 A
Official user manual
Sources

Printed as "Max. [2] 100 A" 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: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Charge/Discharge Current, Max."

Documented

Peak discharge current
150 A
Official user manual
Sources

Printed as "Peak (2mins,25ºC) 150 A" 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: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Charge/Discharge Current, Peak (2mins,25ºC)"

Documented

All specs21
Chemistry
LFP
Official user manual
Sources

Printed as "Lithium Ferro Phosphate (LifePO4 or LFP)" in the row "Battery Chemistry" of the user manual and the datasheet.

Official user manual: Sunsynk user manual: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Battery Chemistry"

Documented

Nominal energy
5.32 kWh
Official user manual
Sources

Printed as "Energy 5.32 kWh" in the user manual and the datasheet.

Official user manual: Sunsynk user manual: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Energy"

Documented

Usable energy
4.79 kWh
The datasheet label prints a different usable energy

The product identification label on page 2 of the datasheet prints "Battery Usable Energy 5.32 kWh", the figure the technical tables give as total energy; the user manual and the datasheet technical table print "Usable Energy [1] 4.79 kWh" at 90% DOD, which is recorded.

Official user manual
Sources

Printed as "Usable Energy [1] 4.79 kWh" 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.

5.32 kWh

The datasheet's product identification label prints "2 Battery Usable Energy 5.32 kWh".

Official datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document
Official user manual: Sunsynk user manual: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Usable Energy"

Documented

Nominal voltage
51.2 V
Official user manual
Sources

Printed as "Nominal Voltage 51.2 V" in the user manual and the datasheet.

Official user manual: Sunsynk user manual: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Nominal Voltage"

Documented

Rated capacity
104 Ah
Official user manual
Sources

Printed as "Capacity 104 Ah" in the user manual and the datasheet.

Official user manual: Sunsynk user manual: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Capacity"

Documented

Maximum discharge current
100 A
Official user manual
Sources

Printed as "Max. [2] 100 A" 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: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Charge/Discharge Current, Max."

Documented

Maximum charge current
100 A
Official user manual
Sources

Printed as "Max. [2] 100 A" 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: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Charge/Discharge Current, Max."

Documented

Peak discharge current
150 A
Official user manual
Sources

Printed as "Peak (2mins,25ºC) 150 A" 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: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Charge/Discharge Current, Peak (2mins,25ºC)"

Documented

Operating voltage range
43.2 to 57.6 V
Official user manual
Sources

Printed as "Operating Voltage 43.2~57.6 V" in the user manual and the datasheet.

Official user manual: Sunsynk user manual: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Operating Voltage"

Documented

Cycle rating
6,000 cycles
Official user manual
Sources

Printed as "Cycle Life [3] ≥6000 (25±2ºC, 90%DOD, 0.5C/0.5C, 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: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Cycle Life"

Documented

Lifetime production

Warranty limit

Warranty energy limit

16 MWh
Official user manual
Sources

Printed as "[4] 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: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: 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.

Published claims and calculations, not independent test results.

Documents

3 on file
  • PDF
    Sunsynk datasheet: L Series battery L5.3, v8OfficialSunsynkOfficial datasheet
    Source details
    Revision
    v8
    Revision date
    Not stated

    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 copies

    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 backup v8 · 0.63 MB

    Archived copy, unaltered, kept as a record of what Sunsynk published. Original address: https://www.sunsynk.org/uploads/1779960263326-Sunsynk_L5-3_Datasheet_v8_English.pdf. Copyright and takedown

    Source first found
    This copy captured
    Archived
    File detailsOriginal source
    Pages
    6
    Embedded creation date
    Oct 16, 2025
    Embedded modification date
    Oct 16, 2025

    Embedded dates are file metadata, not independent proof of publication.

    SHA-256: 9c511b0f4780c61e5752c61ccef703c75b97fff4a00fdbf822f097e8ac57f076

    Open
  • PDF
    Sunsynk user manual: L Series battery L5.3, v11OfficialSunsynkOfficial user manual
    Source details
    Revision
    v11
    Revision date
    Not stated

    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 copies

    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 backup v11 · 4.87 MB

    Archived copy, unaltered, kept as a record of what Sunsynk published. Original address: https://www.sunsynk.org/uploads/1779960265796-SUNSYNK-L5-3_UserManual_v11_English.pdf. Copyright and takedown

    Source first found
    This copy captured
    Archived
    File detailsOriginal source
    Pages
    48
    Embedded creation date
    Jan 7, 2026
    Embedded modification date
    Jan 7, 2026

    Embedded dates are file metadata, not independent proof of publication.

    SHA-256: 95361fa824919cbd2aeea6b7b0d60425f99a1038a7633d0a1e614e2354b959f0

    Open
  • WEB
    Sunsynk product page: L Series 5.32kWh (October 23, 2026 capture)OfficialSunsynkOfficial product page
    Source details
    Revision
    Not stated
    Revision date
    Not stated

    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.

    Open

Archive and older revisions

Archive and older revisions0

Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.

Archived documents

Sunsynk datasheet: L Series battery L5.3, v8

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 backup v8 · 0.63 MB

Archived copy, unaltered, kept as a record of what Sunsynk published. Original address: https://www.sunsynk.org/uploads/1779960263326-Sunsynk_L5-3_Datasheet_v8_English.pdf. Copyright and takedown

Source first found
This copy captured
Archived
File detailsOriginal source
Pages
6
Embedded creation date
Oct 16, 2025
Embedded modification date
Oct 16, 2025

Embedded dates are file metadata, not independent proof of publication.

SHA-256: 9c511b0f4780c61e5752c61ccef703c75b97fff4a00fdbf822f097e8ac57f076

Sunsynk user manual: L Series battery L5.3, v11

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 backup v11 · 4.87 MB

Archived copy, unaltered, kept as a record of what Sunsynk published. Original address: https://www.sunsynk.org/uploads/1779960265796-SUNSYNK-L5-3_UserManual_v11_English.pdf. Copyright and takedown

Source first found
This copy captured
Archived
File detailsOriginal source
Pages
48
Embedded creation date
Jan 7, 2026
Embedded modification date
Jan 7, 2026

Embedded dates are file metadata, not independent proof of publication.

SHA-256: 95361fa824919cbd2aeea6b7b0d60425f99a1038a7633d0a1e614e2354b959f0

Submit a document

Warranty

Capacity retention
70 %
Official user manual
Sources

Read from "[4] 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: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Life Cycle Power During Warranty Period"

Documented

Warranty term
10 years
Official user manual
Sources

Printed as "Warranty 10 Years" 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: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Warranty"

Documented

Warranted throughput limit
16 MWh
Official user manual
Sources

Printed as "[4] 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: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Location: User manual, Technical data table; datasheet, Technical specifications table, row "Life Cycle Power During Warranty Period"

Documented

Sellers

No sellers found.

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Price history

No seller price history.

Owner reviews

No reviews yet

Own one? A verified review needs a receipt and a serial number photo, and counts 19× in the owner rating.

Write a review

Your reviews · Review policy

Evidence score

14/100Missing details40% 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 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 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.

Warranty term10 years10 / 20

10 years · 20% weight

10 of 20 years, the best documented for a home storage battery (printed by the maker): Bioenno Power 6V 3Ah LiFePO4 Battery (PVC, BLF-0603W)

Printed as "Warranty 10 Years" 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.

50 / 100 × 20 = 10 points.

Official user manual: Sunsynk user manual: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document
Warranty energy disclosure16 MWh · not confirmed0 / 10

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: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document
Lifetime / capacity6,000 cycles4 / 20

Cycle 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: L Series battery L5.3, v11 Rev v11 · Checked · Earlier documentOfficial datasheet: Sunsynk datasheet: L Series battery L5.3, v8 Rev v8 · Checked · Earlier document

Research pending, 0 points: Certificates, 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.

How it works Manufacturer? Submit documentation

Certificates

No certificates on file. Certificate guide

Parts and accessories

No sourced accessories or replacement parts listed yet.

Model history

Model identity

Model
SUNSYNK-L5.3

Manufacturer SKU SUNSYNK-L5.3

No historical observations recorded yet.

Community discussions

No discussions linked yet. Search DIY Solar Forum

Recalls / legal notices

No recalls or legal notices on file; this is not a complete recall or court search. All notices · Report a notice

Sunsynk
SunsynkProducts, reviews and history
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