Use APKPure App
Get Inverter Battery Calculator old version APK for Android
Check Inverter Battery Backup Time , Battery Charging Time & Current
this application about inverter battery calculation. You can calculate your inverter battery backup time and also you can know how much time to take full charge of the battery. You can easily convert watts to amps or amps to watts. You will also know how much battery Ah needs to a specific load and check your battery current percentage with the load.