Accu​Battery displays battery usage information, and measures battery capacity (mAh) based on science.   ❤ BATTERY HEALTH   Batteries have a limited lifespan. Every time you charge your device, it wears out the battery, lowering its total capacity. - Use our charge alarm to remind you to unplug your charger. - Discover how much battery wear was endured during your charge session.   📊 BATTERY USE   Accu​Battery measures the actual battery usage using information from the battery charge contr