Reviews of Battery Master 12V

By: taiwanyichengkeji

List of user reviews and ratings for Battery Master 12V

Total ratings

4.24 (Rating count: 622)

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Review summary

Battery Master 12V has mixed reviews. Some users praise its battery monitoring features and device support. However, many report frequent crashes, high battery consumption, connectivity problems, and mandatory login requirements. There are also concerns regarding data privacy and possible fraudulent activity. Overall, while the app has useful features, stability and trust issues persist for numerous users.

Pros

Some users find the app helpful for monitoring their phone's battery and give it high ratings.
The app supports certain smartphone models like HUAWEI Y9A FRL.
It provides battery charge information that some users can confirm as accurate.

Cons

The app often crashes or stops working after updates.
Requires login and sometimes email, which users dislike.
The app consumes high power and runs services in the background, causing battery drain.
Connection issues such as frequent disconnections and needing to disable mobile data to maintain Bluetooth connectivity.
Concerns about data privacy and suspicion of collecting sensitive information or being fraudulent.

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User Reviews

Recent rating average: 3.60

All time rating average: 4.24

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145% (16)

Date	Author	Comment
2026-05-01	Ma*****	good
good
2025-10-22	wa*****	Yes please
Yes please
2025-09-01	Io*****	Results differ from other the ones shown by other tools. I don't believe this app is accurate: the same voltage is interpreted as 100% and 80% SOC; the range of SOH is from 40 to 70%. The same goes for internal resistance from 2 to 4.5 mOhms. I would return the hardware but I keep for monitoring only the voltage.
Results differ from other the ones shown by other tools. I don't believe this app is accurate: the same voltage is interpreted as 100% and 80% SOC; the range of SOH is from 40 to 70%. The same goes for internal resistance from 2 to 4.5 mOhms. I would return the hardware but I keep for monitoring only the voltage.