PDF
Wiren U5 51.2V rack battery datasheet and electronics specification sheet (Wiren Shenzhen Co., Ltd, linked from the U5 product page)OfficialWiren Shenzhen Co., LtdOfficial datasheet
Certificate & compliance claims (2)
UL1973Manufacturer claim · battery pack scope unverifiedClaimedListed when checked
Printed as "UL1973" in "Safety Certified via: ISO 9001,UL1973,UL95 40A, IEC, CE, EMC" on Wiren's own U5 datasheet, and also on the Wiren-branded spec sheet Signature Solar distributes and on Signature Solar's page ("UL 1973"). Recorded exactly as printed. No certification body, file number or certificate is named, and no issuer record was checked.
Manufacturer document
Official datasheet: Wiren U5 51.2V rack battery datasheet and electronics specification sheet (Wiren Shenzhen Co., Ltd, linked from the U5 product page) Checked Sep 24, 2026 · Earlier document
UL9540AManufacturer claim · unresolved document setClaimedListed when checked
Wiren's own U5 datasheet prints the certification line as "ISO 9001,UL1973,UL95 40A, IEC, CE, EMC" in its text layer (read as UL9540A split across two text runs); the Wiren-branded spec sheet Signature Solar distributes prints "UL9540A" and Signature Solar's page prints "UL 9540A". Recorded as printed. The documents do not say at which level (cell, module or unit) any test was run, name no laboratory or report number, and no report was read.
Manufacturer document
Official datasheet: Wiren U5 51.2V rack battery datasheet and electronics specification sheet (Wiren Shenzhen Co., Ltd, linked from the U5 product page) Checked Sep 24, 2026 · Earlier document
Source details
Revision
Not stated
Revision date
Not stated
Location: Page 1 overview and certification line; page 2 Technical Specification and BMS Parameters tables
Retrieved Sep 24, 2026
Wiren's two-page U5 datasheet, linked from its own U5 product page and captured on September 25, 2026. It prints no revision or date; the file address carries 20260818. Its text layer splits some strings (for example "44 . 8V" and "UL95 40A"); values are read from the Technical Specification table, whose labels and values are laid out in two columns. Manufacturer claims, not independent tests.
Archived copies
Archived copy of a document published by Wiren Shenzhen Co., Ltd. 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 Revision not recorded · 0.52 MB
Archived copy, unaltered, kept as a record of what Wiren Shenzhen Co., Ltd published. Original address: https://www.wirenergy.net/storage/upload/f_custom/20260818/be9023b2df7892c4bdf67aaeaa209b39.pdf. Copyright and takedown
Source first found
Sep 25, 2026
This copy captured
Sep 24, 2026, 5:00 PM PDT
Archived
Sep 24, 2026, 5:00 PM PDT
File details
Original source
Pages
2
Embedded dates are file metadata, not independent proof of publication.
SHA-256: a50c34cf5bc26b4e53f7a2d5c220fd2764057be45460abb656cd7275fb16b5b8
Open
WEB
Wiren U5 51.2V 100Ah Server Rack Battery product page (Wiren Shenzhen Co., Ltd, September 25, 2026 capture)OfficialWiren Shenzhen Co., LtdOfficial product page
Source details
Revision
Not stated
Revision date
Not stated
Location: Heading; U5 5.12kWh Rack Battery Specifications; Battery Management and Charge-Current Limiting
Retrieved Sep 24, 2026
Wiren's own U5 product page, captured on September 25, 2026. Its specification list says it summarizes the U5 model datasheet and that the final rack drawing, inverter protocol and BMS configuration should match the order. It prints "Warranty Confirm written terms" rather than a warranty length. It prints no revision or date. Manufacturer claims, not independent tests.
Open

Archive and older revisions0

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

Archived documents

Wiren U5 51.2V rack battery datasheet and electronics specification sheet (Wiren Shenzhen Co., Ltd, linked from the U5 product page)

Archived copy of a document published by Wiren Shenzhen Co., Ltd. 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 Revision not recorded · 0.52 MB

Archived copy, unaltered, kept as a record of what Wiren Shenzhen Co., Ltd published. Original address: https://www.wirenergy.net/storage/upload/f_custom/20260818/be9023b2df7892c4bdf67aaeaa209b39.pdf. Copyright and takedown

Source first found: Sep 25, 2026
This copy captured: Sep 24, 2026, 5:00 PM PDT
Archived: Sep 24, 2026, 5:00 PM PDT

File details

Original source

Pages: 2

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

SHA-256: a50c34cf5bc26b4e53f7a2d5c220fd2764057be45460abb656cd7275fb16b5b8

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Warranty

Warranty term: 10 years
Official datasheet
Sources
Printed as "10 Years Warranty" on page 1 and "10 Years" in the Technical Specification Warranty row. Wiren's U5 product page prints "Warranty Confirm written terms" instead of a length, and Signature Solar's page refers to a "10-Year Limited Warranty" (retailer-stated). No warranty document was read, so start date, throughput and retention terms are unknown.
Official datasheet: Wiren U5 51.2V rack battery datasheet and electronics specification sheet (Wiren Shenzhen Co., Ltd, linked from the U5 product page) Checked Sep 24, 2026 · Earlier document
Location: Datasheet page 1 and page 2 Warranty row
Documented

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Signature Solar

4.6 (7)not verified

Listing SKU 1668003

$999Recorded Nov 11, 2026

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ShopSolar

1 review

Listing SKU 1668003

$899Recorded Nov 12, 2026

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Price history

Prices we read at Signature Solar and ShopSolar · 38 readings from Oct 4, 2026 to Nov 12, 2026

Chart, listings & data

Since Oct 4, 2026 · Listing price (USD)

Signature SolarView listing Paid link.

ShopSolarView listing Paid link.

ShopSolar$899Nov 12, 2026, 1:26 AM PSTLatest check · hover or tap for earlier prices

A break in a line is a gap in our readings: no price is drawn for days we did not read.

Price data

Collected price observations by seller
Checked (UTC)	Seller	Price
Oct 4, 2026, 9:26 AM PDT	Signature Solar Paid link.	$899
Oct 4, 2026, 9:30 AM PDT	ShopSolar Paid link.	$899
Oct 11, 2026, 1:05 AM PDT	ShopSolar Paid link.	$899
Oct 13, 2026, 1:15 AM PDT	ShopSolar Paid link.	$899
Oct 15, 2026, 1:06 AM PDT	ShopSolar Paid link.	$899
Oct 16, 2026, 1:06 AM PDT	ShopSolar Paid link.	$899
Oct 17, 2026, 1:16 AM PDT	ShopSolar Paid link.	$899
Oct 18, 2026, 1:06 AM PDT	ShopSolar Paid link.	$899
Oct 20, 2026, 9:17 PM PDT	ShopSolar Paid link.	$899
Oct 22, 2026, 1:16 AM PDT	ShopSolar Paid link.	$899
Oct 24, 2026, 1:06 AM PDT	ShopSolar Paid link.	$899
Oct 24, 2026, 3:07 AM PDT	Signature Solar Paid link.	$999
Oct 25, 2026, 1:06 AM PDT	ShopSolar Paid link.	$899
Oct 26, 2026, 1:07 AM PDT	ShopSolar Paid link.	$899
Oct 27, 2026, 1:07 AM PDT	ShopSolar Paid link.	$899
Oct 27, 2026, 2:57 AM PDT	Signature Solar Paid link.	$999
Oct 28, 2026, 1:26 AM PDT	ShopSolar Paid link.	$899
Oct 28, 2026, 3:26 AM PDT	Signature Solar Paid link.	$999
Oct 29, 2026, 1:16 AM PDT	ShopSolar Paid link.	$899
Oct 29, 2026, 3:53 AM PDT	Signature Solar Paid link.	$999
Oct 30, 2026, 1:26 AM PDT	ShopSolar Paid link.	$899
Oct 30, 2026, 3:55 AM PDT	Signature Solar Paid link.	$999
Oct 31, 2026, 3:41 AM PDT	Signature Solar Paid link.	$999
Nov 1, 2026, 1:07 AM PDT	ShopSolar Paid link.	$899
Nov 1, 2026, 3:53 AM PST	Signature Solar Paid link.	$999
Nov 2, 2026, 4:14 AM PST	Signature Solar Paid link.	$999
Nov 2, 2026, 9:37 AM PST	Signature Solar Paid link.	$999
Nov 3, 2026, 1:06 AM PST	ShopSolar Paid link.	$899
Nov 3, 2026, 4:31 AM PST	Signature Solar Paid link.	$999
Nov 4, 2026, 1:06 AM PST	ShopSolar Paid link.	$899
Nov 5, 2026, 1:06 AM PST	ShopSolar Paid link.	$899
Nov 5, 2026, 2:16 AM PST	Signature Solar Paid link.	$999
Nov 6, 2026, 1:07 AM PST	ShopSolar Paid link.	$899
Nov 7, 2026, 1:17 AM PST	ShopSolar Paid link.	$899
Nov 7, 2026, 4:23 AM PST	Signature Solar Paid link.	$999
Nov 8, 2026, 1:16 AM PST	ShopSolar Paid link.	$899
Nov 11, 2026, 3:24 AM PST	Signature Solar Paid link.	$999
Nov 12, 2026, 1:26 AM PST	ShopSolar Paid link.	$899

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Evidence score

24/100Missing details85% 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: Warranty energy disclosure evidence needed; Cell model disclosure evidence needed.

48 V · Server rack · 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.

CertificatesUL1973 · UL9540A +1Claimed9.84 / 45

21.88 evidence points · 45% weight

UL 1973: strongest qualifying evidence, counted once. Product-scoped manufacturer claim; issuer verification pending. Applies: CEC; UL 9540; UL 1973.

21.88 / 100 × 45 = 9.84 points.

Official datasheet: Wiren U5 51.2V rack battery datasheet and electronics specification sheet (Wiren Shenzhen Co., Ltd, linked from the U5 product page) Checked Sep 24, 2026 · Earlier document

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 "10 Years Warranty" on page 1 and "10 Years" in the Technical Specification Warranty row. Wiren's U5 product page prints "Warranty Confirm written terms" instead of a length, and Signature Solar's page refers to a "10-Year Limited Warranty" (retailer-stated). No warranty document was read, so start date, throughput and retention terms are unknown.

50 / 100 × 20 = 10 points.

Official datasheet: Wiren U5 51.2V rack battery datasheet and electronics specification sheet (Wiren Shenzhen Co., Ltd, linked from the U5 product page) Checked Sep 24, 2026 · 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 datasheet: Wiren U5 51.2V rack battery datasheet and electronics specification sheet (Wiren Shenzhen Co., Ltd, linked from the U5 product page) Checked Sep 24, 2026 · Earlier document

Research pending, 0 points: 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.

How it works Manufacturer? Submit documentation

Certificates

3 on fileUL 1973 · pack claim · unverified

UL 1973: Pack claim · unverified

UL1973Battery pack claim; verification pendingClaimedListed when checked

Printed as "UL1973" in "Safety Certified via: ISO 9001,UL1973,UL95 40A, IEC, CE, EMC" on Wiren's own U5 datasheet, and also on the Wiren-branded spec sheet Signature Solar distributes and on Signature Solar's page ("UL 1973"). Recorded exactly as printed. No certification body, file number or certificate is named, and no issuer record was checked.

Models: U5

Issued: Not stated
Valid from: Not stated
Expiry: Not stated
Issuer checked: Not checked

Official datasheet: Wiren U5 51.2V rack battery datasheet and electronics specification sheet (Wiren Shenzhen Co., Ltd, linked from the U5 product page) Checked Sep 24, 2026 · Earlier documentDistributor product page: Wiren-branded U5 spec sheet as distributed by Signature Solar (Image Relay share titled "NEW Wiren Spec Sheet 08-25-26") Paid link.Checked Sep 24, 2026 · Earlier documentDistributor product page: Wiren | Server Rack Battery | 48V 100AH | U5, Signature Solar product page (September 25, 2026 capture) Paid link.Checked Sep 24, 2026 · Earlier document

UL9540AProduct / system scope unresolvedClaimedListed when checked

Wiren's own U5 datasheet prints the certification line as "ISO 9001,UL1973,UL95 40A, IEC, CE, EMC" in its text layer (read as UL9540A split across two text runs); the Wiren-branded spec sheet Signature Solar distributes prints "UL9540A" and Signature Solar's page prints "UL 9540A". Recorded as printed. The documents do not say at which level (cell, module or unit) any test was run, name no laboratory or report number, and no report was read.

Models: U5

Standard as printed: UL9540A
Edition as printed: Not printed
What it covers: Product / system scope unresolved
Type: A fire-test report (UL 9540A is a test method, not a listing)
For a permit: A fire test. Useful supporting evidence, but it does not replace UL 9540.

Issued: Not stated
Valid from: Not stated
Expiry: Not stated
Issuer checked: Not checked

IEC62619Battery pack claim; verification pendingClaimedListed when checked

Printed as "IEC62619" in "Safety Certified via: ISO9001/14001, UL1973, UL9540A,IEC62619,UKCA" on the Wiren-branded U5 spec sheet distributed by Signature Solar (titled "NEW Wiren Spec Sheet 08-25-26"). Wiren's own datasheet copy prints only "IEC" without a standard number. Recorded as printed; no certificate or issuer record was read.

Models: U5

Issued: Not stated
Valid from: Not stated
Expiry: Not stated
Issuer checked: Not checked

Distributor product page: Wiren-branded U5 spec sheet as distributed by Signature Solar (Image Relay share titled "NEW Wiren Spec Sheet 08-25-26") Paid link.Checked Sep 24, 2026 · Earlier document

Datasheet & manual claims2

UL1973Manufacturer claim · battery pack scope unverifiedClaimedListed when checked

Manufacturer document

Official datasheet: Wiren U5 51.2V rack battery datasheet and electronics specification sheet (Wiren Shenzhen Co., Ltd, linked from the U5 product page) Checked Sep 24, 2026 · Earlier document

UL9540AManufacturer claim · unresolved document setClaimedListed when checked

Manufacturer document

Official datasheet: Wiren U5 51.2V rack battery datasheet and electronics specification sheet (Wiren Shenzhen Co., Ltd, linked from the U5 product page) Checked Sep 24, 2026 · Earlier document

Certificate guide

Parts and accessories

No sourced accessories or replacement parts listed yet.

Model history

Model identity

Model: U5

Manufacturer SKU U5 · US market

No historical observations recorded yet.

Community discussions

No discussions linked yet. Search DIY Solar Forum

Recalls / legal notices

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Wiren U5 51.2V 100Ah server rack battery (5.12 kWh)

Key specs

Lifetime production

Documents

Archive and older revisions

Archived documents

Warranty

Sellers

Signature Solar

Discounts

Evidence

ShopSolar

Evidence

Price history

Owner reviews

Evidence score

Certificates

Parts and accessories

Model history

Model identity

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Recalls / legal notices