J42 Power Tool

Contains ads
5+
Downloads
Content rating
Everyone
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About this app

J42 42 Battery Tool will show you real time values for battery voltage, current, wattage, temperature, CPU usage and CPU frequency.

Overcharge and undercharge warning.

Monitor battery condition under load by activating CPU cores from one to max installed cores.

Supports all charger types. Wireless, USB, AC, external, bank.

All hardware devices and all Android OS versions do not support all possible battery and CPU sensors. Unavailable sensor data will be indicated by a grayed-out block or a pop-up message.

The external power should be disconnected when the app first starts.
Do not connect the external power source during app startup and calibration.

The free version contains advertising. The paid version does not contain advertising.
Updated on
Oct 31, 2023

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Device or other IDs
This app may collect these data types
App activity, App info and performance, and Device or other IDs
Data is encrypted in transit
Data can’t be deleted

What’s new

Use the in-app feedback option to report problems or make suggestions.