What it does
Live readings
Charge, input and output power, solar, voltages and temperatures, every few seconds.
Every cell
Cell voltages side by side, and a check that spots a weak cell by how it behaves under load.
History and solar
Energy in and out by day, your solar panels against their rating, and battery health over the months.
Health report
A clear report to share or save as a PDF.
Several units
Watch more than one unit, with totals, alerts and a home-screen widget.
Tests
A guided load test and a full capacity test.
No unit yet? Open the app and try the demo.
Private by design
No account with us and no tracking by Power King. Your readings stay on your phone. The free app shows an ad when it opens.
Power King keeps nothing about you on any server and never sells your data, your location or any other information.
Installing
- Tap Download and open the file.
- If Android asks, allow installs from your browser.
- Tap Install. Power King tells you when a new version is out.
Check the download
SHA-256 of each file, and the fingerprint of the key that signs every Power King release:
- power-king-1.0.0-arm64-v8a.apk
75866abea68dc711df83d3c5dd3fc42e3c1aaa518f43bd2aa05514b01a6f02c4 - power-king-1.0.0-armeabi-v7a.apk
fa36a4602b91604cf7f617c8bff5f1a899476c82c8d1d024fa0b338a957a87cd - power-king-1.0.0-x86_64.apk
b29e76841553689970a5b9b598c25c301744b89d70d620131397116c273b0f09 - Signing key
74:3E:7E:99:D7:AF:4B:C9:14:45:06:0A:43:5C:E1:07:BC:EB:A1:64:CD:92:E0:FE:06:BD:A4:40:5D:75:1E:59