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
648a73981b59385fa8607ab289a3bc59a6b43a0e044427771cf8c05a3eeb1f9c - power-king-1.0.0-armeabi-v7a.apk
404ad98bf2fbc1e641f01bcd7cb5627d4b3f0a0051e61f53b3e2b0bd0eb22a3d - power-king-1.0.0-x86_64.apk
d4b4a6d5c90e3041135f524de13bff1d2035efcfe0801fbedd67d89e628667dd - 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