Battery Guru

Batteries have a limited lifespan, every time you charge your device it wears out the battery, lowering it's total (design) capacity.

Now, you can reduce wear, spend less time with your device attached to its charger and get more out of your mobile life without constant concerns about the low battery level.

Use Battery Guru to find the fastest charger and USB cable for your device. Measure the charging current (in mA) to find out!

The app will show you max current achieved while charging.

HIGHLIGHTS

• Measure real battery capacity (in mAh), dual battery configuration is supported.
• Use the charge and temperature alarm notification to prolong battery lifespan.
• Detailed applications usage
• Insight into wakelocks since last unplug
• Remaining charge time - know how long it takes before your battery is charged.
• Remaining use time - know when you will run out of battery.
• Screen on or screen off estimations.
• Check the percentage of deep sleep and awake time
• Detailed ongoing notification for real-time battery statistics

Choose status bar indicator based on your need:

• Current mA
• Temperature
• Battery level
• And combination of them