Rated capacity: 1 kWh
Official product page
Sources
The product page prints "Pure Sine Wave Output — 500W 1KWH Delivers 500W pure sine wave AC output with 1KWh capacity". Manufacturer claim, not an independent test.
Official product page: PowMr 500W 110V 1KWH All In One Portable Energy Storage System (PT500W-1KWH-S120) product page (October 13, 2026 capture) Checked Oct 12, 2026 · Earlier document
Location: Product page Overview
Documented
Usable capacity: Not documented
AC output voltage: 60-145 V AC, 60 Hz
Official product page
Sources
The product page prints "Output voltage ranges from 60–145VAC at 60Hz".
Official product page: PowMr 500W 110V 1KWH All In One Portable Energy Storage System (PT500W-1KWH-S120) product page (October 13, 2026 capture) Checked Oct 12, 2026 · Earlier document
Location: Product page Overview
Documented

Lifetime production

Not published

Published claims and calculations are not independently tested lifetime output.

Published claims and calculations, not independent test results.

Documents

1 on file

WEB
PowMr 500W 110V 1KWH All In One Portable Energy Storage System (PT500W-1KWH-S120) product page (October 13, 2026 capture)OfficialPowMrOfficial product page
Source details
Revision
Not stated
Revision date
Not stated
Archived copy captured on 2026-10-13.
Location: SKU line; Overview; Specifications
Retrieved Oct 12, 2026
PowMr's own store page at powmr.com, captured on October 13, 2026; the content is whatever the address served on that date. Only the page's own description, its SKU line and its single-model Specifications block are read; the page's product comparison table is not used. The page prints no market or region and carries no revision date. Manufacturer claims, not independent tests.
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Warranty

No warranty terms on file.

Sellers

No sellers found. Maker list price $395, as of Oct 16, 2026.

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Price history

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Owner reviews

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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.

Power stations · Output unconfirmed · Rated capacity

The warranty term and the lifetime energy are each scored against the best documented value for a power station: 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 product page: PowMr 500W 110V 1KWH All In One Portable Energy Storage System (PT500W-1KWH-S120) product page (October 13, 2026 capture) Checked Oct 12, 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

No certificates on file. Certificate guide

Parts and accessories

No sourced accessories or replacement parts listed yet.

Model history

Model identity

Model: PT500W-1KWH-S120

Manufacturer SKU PT500W-1KWH-S120

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

PowMr

PowMrProducts, reviews and history

5.0 (1)

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Prices · price basis. * Calculated; estimates labeled. Value needs confirmation; select it for the reason.

^† Maker's own price, dated on the product, because no seller price is on file. Not a seller price. No buy link.