Battery graph & monitor to 0.1%: drain, temperature, voltage, widgets, family
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★ Battery graph, monitor & family alerts
BatterySnap graphs your battery to a fraction of a percent — real voltage, current and temperature, months and years of history — and watches your family's phones too.
★ Battery monitoring & analysis
1. Real sensor readings — voltage, current and temperature
2. Battery level to a tenth of a percent
3. Monitor the battery of family, friends and your other phones — get warned before one dies
4. Battery history and analysis — charge, discharge, months of graphs
5. Customizable battery widgets — live level at a glance
6. Export and share your battery graphs
★ 1. Sensor readings
- Measured by your device's own sensors, not estimated
- Power consumption, charge and discharge rates
★ 2. Tenth-of-a-percent precision
- See drain in tenths of a percent, not just whole numbers
- Smooth level graphs — spot the slow drain the system rounds away
★ 3. Family and multiple phones
- The battery levels of your loved ones in one place
- Keep an eye on your own secondary, work and spare phones too
- Set low and high battery alerts for each monitored device
- Share your battery status with the people who care
- A must-have for parents, partners and anyone juggling several phones
★ 4. Deep battery analysis
- Interactive real-time graphs at multiple time scales, from minutes to months
- History that never expires, not just the last 24 hours
- Analyze charge and discharge cycles
- Burn rate and awake ratio: see what your phone uses while the screen is off
- Opt in to compare your device against others of the same model worldwide
- Spot what drains your battery
★ 5. Widgets
- Fun, customizable styles for your home screen and lock screen
- Live level with one-decimal precision, plus temperature, voltage and charging time
- Lightweight: minimal battery impact
- Third-party widgets: other apps can receive BatterySnap updates and show them in their own widgets — sample code: https://github.com/Xhelas/Battery-snap-sample-widget
★ Pro tip
Add a widget to your home screen and let BatterySnap run for a couple of days. More data means sharper analysis.
★ Android battery optimization
Android pauses background apps to save power. For continuous, gap-free graphs, exempt BatterySnap from battery optimization in Settings.
★ BatterySnap Xtra
Free at its core. Upgrade to Xtra to support BatterySnap's development, remove ads, get high and low battery alerts for this phone with custom thresholds, pin the level to your notification bar, and unlock extra widget styles.
You can currently get a free Xtra code by adding a friend's, a family member's or your own secondary device for monitoring — keep the code or gift it.
★ Love BatterySnap?
Tell your friends and leave a review. Questions or ideas? Email us — we read and answer every message.
Install BatterySnap free — the sooner you start, the more history you'll have to analyze.