Observed arrival · 2026-11-11
充電ラボ’s official-spec charging database
A Japanese database of battery, charger, and portable power station specifications, with capacity and airline-carry-on calculators.
- For
- Japanese shoppers comparing batteries, chargers, or portable power stations
- Worth noticing
- Unpublished specifications are labeled rather than estimated, and the site says its product data comes from manufacturers’ official information.
Field notes
The comparison tables expose different measures for different product types: charger entries distinguish single-port maximum output from total output, while portable power stations include price per Wh. The site says it does not conduct hands-on testing or measured reviews, and avoids recommendation rankings; its stated scope is organizing official specifications and providing comparison tools. It also says the data is gathered from manufacturer sources and directs readers to check those sources for current specifications and prices.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue