Perfektium app for iPhone and iPad
"Perfektium Battery Smart App is a great utility to help you check and monitor your battery and device information.
According to Perfektium App, you can check the battery life; charge and discharge situation and device status.
Main Feature,
1. Check battery status and runtimes.
2. Check battery information
3. Support multi-language: English, German, Spanish, Franch and Italian
Hope Perfektium app help you to understand your battery!"