Observed arrival · 2026-10-12
Power King watches batteries for the weak cell
An Android app that monitors compatible power stations, batteries, inverters, and solar chargers over Bluetooth, with alerts and cell-level checks.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Cabin, RV, van, and solar-system owners
- Worth noticing
- Its origin story describes a 15-cell power station that shut down under load despite showing 42% charge.
Field notes
The page describes live readings alongside historical solar output, daily energy, battery health, and test results, which can be exported as spreadsheets or PDF reports. Monitoring is presented as read-only and local to the phone, with no account or internet connection required. The listed Android minimum is version 7; the site invites users to report unsupported units and says more will come in free updates.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue