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

I love this app. It's simple and allows inspecting any past period for battery drain. But for some reason on my Samsung S25 Ultra it doesn't show the app that was in foreground at any given moment. Even though I gave it usage access data. The behavior really varies between my devices. Is it possible to fix this?

I use it all the time, on several phones, to see how fast my phone is charging, how ast it is discharging , ... Simple, clear, accurate.

On a pixel 4, the graph is just random data. It even thinks it's charging with three hours to go when in fact it's half discharged and hasn't charged for six hours. Update: It's gone from worst to best. After fixing the app's battery optimization setting, I see a nice graph where you can see just how your battery is doing and how good (or in my case, bad) your charger is. A pro version would be nice.

What’s new

Ver.1.4.11
- Changed the button for opening notification settings to disappear after 5 seconds

Ver.1.4.10
- Fixed an issue where the notification sometimes failed to appear

Ver.1.4.9
- Fixed an issue where the settings screen was hidden behind the status bar

Ver.1.4.8
- Changed API level to 35
- Because of new restrictions, logging may not work in some cases

Ver.1.4.7
- Fixed issue where notifications were not appearing