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

Overall, it's a great app when it works properly but there are moments when it gets crazy and shows graph jumping up and down without any reason. This happens even after following instructions of optimization.

it was good until I got a banner claiming this app needs notification permission, no it doesn't, it works fine without. the banner takes up like half the screen and you can't turn that off without turning notifications on

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

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

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

Ver.1.4.7
- Fix issue where notifications were not appearing

Ver.1.4.6
- Add an option to choose the time format (12-hour or 24-hour)

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

Ver.1.4.4
- Rejected..