Terms of use

Solar Power Auditor is published for general information. You may read it, link to it, and quote it with attribution. You may not republish substantial portions of it as your own work, or scrape it to generate derivative product content.

This is the section that matters, so we will be direct about it.

Most of the measurements on this site were not taken by us. They are figures published by third-party laboratories and publications, which we have collected, attributed and compared. We check them against the source at the time of writing. We cannot guarantee that they are correct, that the source has not since revised them, or that the unit you buy will behave like the unit that was tested.

Runtimes and costs per watt-hour on this site are calculated, not observed. They come from applying fixed, published assumptions to a measured capacity figure. Real-world results will differ with temperature, load profile, cable losses, battery age and the specific unit. The assumptions are listed at how we rate so you can check whether they resemble your situation.

Specifications change without notice. Manufacturers revise products under the same name, and the figures here reflect what was published on the date shown at the top of the page. Verify anything you are relying on against the manufacturer's current specification before you buy.

Prices are list prices on the date stated. They are not offers, they are not what you will pay, and we do not track them.

Similarly: lithium battery systems store a great deal of energy. Follow the manufacturer's instructions on charging temperature, ventilation, water ingress and load limits. Do not exceed a unit's rated output because a guide here suggested a load profile.

This site is provided "as is". To the fullest extent permitted by law we disclaim all warranties, express or implied, including fitness for a particular purpose and accuracy of content. We are not liable for any loss arising from your use of, or reliance on, anything published here — including any purchasing decision.

We link to manufacturers, to the laboratories we cite, and to Amazon product listings. We do not control those sites, are not responsible for their content, and linking to them is not an endorsement of anything beyond the specific fact we cited them for.

Buttons labelled with a product name link to Amazon. We are not in any affiliate programme and earn nothing from them — see how we are funded. Where we could not confirm the exact listing for a product, the button goes to an Amazon search instead of a specific listing, deliberately.

EcoFlow, Jackery, Bluetti, Anker, SOLIX and all other product and brand names are the trade marks of their respective owners. We use them for identification and comparison only. This site is not affiliated with, endorsed by, or sponsored by any manufacturer it covers.

If something here is wrong, tell us and we will fix it and note the correction on the page. If you are a manufacturer who believes we have misrepresented a product, write to us with the specific figure and the correct source, and we will publish the correction.

These terms may change; the modified date at the top reflects when. Continuing to use the site after a change means you accept the current version.