Simple Battery Graph

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Contains adsIn-app purchases

About this app

Simple Battery Graph displays an interactive graph of battery level.
You can measure how much energy is consumed/charged per hour.

*** If the graph is not updated, please disable the battery optimization for this app by the Android settings. You can open it from the menu of this app. ***

How to use:
- Drag on graph to scroll
- Pinch in/out on graph to change time-axis
- Drag green label on the bottom to change measurement period
(Thick short green line indicates actual recorded point which is automatically chosen nearest point from thin green line)

Battery level is recorded for only latest 10 days.
A sine wave graph is generated as a sample at the first startup and it will be removed after 10 days.

I have confirmed this app works on the following devices:
- Essential Phone PH-1 / Android 10
- Xperia 1 / Android 9
- Nexus 6 / Android 7.1.1

Ratings and reviews

Awesome! Clever design. The interactive time axis is a unique feature which is very handy. Get a quick overview of battery and temp for the whole day or pinch to zoom in and see minute by minute changes. Also one of the only apps that seems to never get killed on Samsung. Clearly a very skilled developer is behind this. Very sleek. Good work.

Very helpful information about the continual state of my battery and temperature. Just one complaint. It has a set of vertical lines you can move to help you predict how long it will take to discharge or charge. This is pretty useless and inaccurate. It also clutters up about 1/3 of the viewing area. We should be able to optionally remove this annoying feature.

Great app, shows a much better and more detailed graph than standard Android does. I appreciate the detail and granularity. However, I'm only giving 4/5 stars because after the Android 13 update, this app doesn't show notifications. I really liked seeing my battery percentage in a notification and I guess something in the Android framework changed. Hopefully the developer can fix the app so notifications work again. Android settings just claim "this app doesn't send notifications".

What's new

Ver.1.4.5
- Add an option to change the Notification icon

Ver.1.4.4
- Rejected..

Ver.1.4.3
- Fix an issue that occurs on Android 13 or later

Ver.1.4.2
- Fix an issue that notifications don't appear on Android 13

Ver.1.4.1
- Rejected..

Ver.1.4.0
- Change API level to 33 to upload this to the Google Play
- Optimize rendering routines
- Modify to keep all history data while subscribed

Ver.1.3.17
- Update ads library (Expect to solve the problem of increasing User data usage)