BM2

3.8.0

wanbaolu

3.56

1,883 reviews

100,000+
Downloads

Free

Battery Voltage Test,Cranking System Voltage Test,Charging System Voltage Test

Alternative downloads for the BM2 app

BM2 compared with similar apps

Common keywords of similar apps

Startup Wear Battery Test Voltage Data Charging System Monitor Car Mobile

Keywords missing from this app

Time Temperature Health App Status Current Charge Real Level Power Display Recent Phone Capacity Device Fast Bt Application Support Easy Helps Users Information Batterysnap Bluetooth Monitoring Batteries Devices Features Meter Percentage Protection Dcpm Cranking Fully Check Speed Low Type Screen Connect

About BM2

BM2 is a tools app developed by wanbaolu.

Download Statistics

BM2 has been downloaded 170 thousand times. In the last 30 days, the app was downloaded 1.4 thousand times.

User Ratings

BM2 is rated 3.56 out of 5 stars. The rating is based on 1.9 thousand ratings.

App Information

BM2 is FREE to download. The APK download size is 22.05 MB. The latest version available is 3.8.0. The last update was on October 30, 2025.

Technical Requirements

BM2 requires Android 6.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play May 2016.

Description

Battery Monitor BLE is an application for car battery monitoring, which can monitor the real-time voltage of the car battery; count the historical voltage of the battery; it can automatically test the

More data about BM2

Price	Free to download
Total downloads	170 thousand
Recent downloads	1.4 thousand
Rating	3.56 based on 1.9 thousand ratings
Ranking	Not ranked
Version	3.8.0
APK size	22.0 MB
Number of libraries	33
Designed for Android	6.0+
Suitable for	Everyone
Ads	NO ads

App Performance Report

Get a detailed PDF report for BM2 with download trends, rating history, and key performance statistics — useful for competitive research or tracking your own app. Learn more

Get PDF Report — $29

Google Play Rating history and histogram

820

290

230

150

370

Downloads over time

BM2 has been downloaded 170 thousand times. Over the past 30 days, it averaged 45 downloads per day.

Changelog of BM2

Oct 30, 2025UpdateVersion 3.8.0
Jun 12, 2025UpdateVersion 3.7.9
Aug 4, 2024UpdateVersion 3.7.8
Jul 12, 2024UpdateVersion 3.7.7
Feb 17, 2024UpdateVersion 3.7.6
Jan 31, 2024UpdateVersion 3.7.5
Oct 24, 2023UpdateVersion 3.7.1
Sep 26, 2023UpdateVersion 3.6.9
Aug 31, 2023UpdateVersion 3.6.6
Jun 25, 2023UpdateVersion 3.6.5
Jun 3, 2023Installs100,000+ installs
Apr 18, 2023UpdateVersion 3.6.4
Dec 9, 2022UpdateVersion 3.6.2
Nov 14, 2022UpdateVersion 3.6.1
Aug 30, 2022UpdateVersion 3.5.6
Jun 23, 2022UpdateVersion 3.5.5
May 19, 2022UpdateVersion 3.5.3
Apr 20, 2022UpdateVersion 3.5.1
Apr 2, 2022UpdateVersion 3.5.0
Oct 27, 2021UpdateVersion 3.4.2
Aug 9, 2021UpdateVersion 3.4.1
May 12, 2021Installs50,000+ installs
Jan 19, 2021UpdateVersion 3.3.1
Nov 1, 2020UpdateVersion 3.2.2
Sep 12, 2020UpdateVersion 3.2.0
Aug 11, 2020UpdateVersion 3.1.0
May 11, 2019UpdateVersion 3.0.1
May 4, 2019UpdateVersion 2.7.6
Dec 28, 2018UpdateVersion 2.7.5
Dec 13, 2018UpdateVersion 2.7.2
Oct 16, 2018Installs10,000+ installs
May 8, 2018UpdateVersion 2.6.2
Apr 11, 2018UpdateVersion 2.5.9
Feb 15, 2018Installs5,000+ installs
Oct 23, 2017UpdateVersion 2.3.4
Oct 13, 2017UpdateVersion 2.3.3
Sep 24, 2017UpdateVersion 2.3.2
Jun 15, 2017Installs1,000+ installs
Jun 2, 2017UpdateVersion 2.2.7
Apr 6, 2017Installs500+ installs
Mar 19, 2017UpdateVersion 2.2.3
Feb 9, 2017UpdateVersion 2.1.8
Jan 9, 2017UpdateVersion 2.1.7
Dec 29, 2016Installs100+ installs
Dec 8, 2016UpdateVersion 2.1.4
Nov 20, 2016UpdateVersion 2.1.0
Oct 26, 2016Installs50+ installs
Sep 20, 2016UpdateVersion 测试 1.9
Aug 19, 2016UpdateVersion 测试 1.2
Jun 23, 2016Installs10+ installs

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Developer information for wanbaolu

wanbaolu

wanbaolufit@gmail.com

N/A

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Comments on BM2 for Android

★★★★☆ Michael Calverley · Feb 3, 2026

Does the job but a couple of things I find is it does not automatically connect when close by and the battery levels are a bit off, saying low when it's actually at a good voltage. It's been on my car for quite some time and not caused any issues. Definitely handy but would be better if auto connect was better.

★★★★★ 4008 N Molter · Mar 17, 2026

Easy to install. Charging and battery information at my fingertips. Excellent price. Cant imagine needing anything else to monitor the health of my batteries and charging systems. Installed on my Ram 3500 diesel and my Kia EV6. Could not be more pleased.

★★★★★ michael muchard · Apr 24, 2025

I've been using this device for several years on all of my auto, tractor, RV and RV toad batteries. It works great. Not only does it show the battery state-of-charge, it also shows the battery performance during starting which is a good indication the battery's remaining life. I found it so useful for monitoring my motor home's toad's battery while towing that I bought devices for my friends as a gift.

★☆☆☆☆ bob haz · Apr 17, 2026

Why?\n Do you need access to all my phone data I don't want you monitoring where I'm at all times how fast I'm driving. Where all stops, I make Where I live when I'm home, when I'm not home. Somebody stares at me with binoculars. Reporting back to a third party is not acceptable. You peeping Tom, you. How is this acceptable? Peeping, Tom is against I just wanted to know what the level My battery was on my car. Now, your software has made the battery monitoring device undesirable

★☆☆☆☆ AI AIN · Jul 31, 2025

App's voltage to percentage value is off by 30 percent. It shows my voltage as 12.23 volts as 38 percent. Look at any 12 volts car battery chart on the web, 12.2x volts is 60 percent.

★☆☆☆☆ Ronald Erlston · Apr 23, 2025

Microsoft Defender has flagged this app on my Samsung phones as malware! Disappointing as the app was quite useful. Will only reinstall if cleared by Defender 😕

★☆☆☆☆ Graeme Woods · Apr 4, 2024

Doesn't appear to work with lithium as box says it does. It also wants your exact location, or it doesn't work. Why does a battery monitoring system want your precise location at all times.? I will be returning it tomorrow for refund.

Google Play Rankings for BM2

This app is not ranked

Technologies used by BM2

BM2 is requesting 28 permissions and is using 36 libraries.

Permissions

Development tools

test access to protected storage

Your location

approximate (network-based) location, precise (GPS) location, access extra location provider commands

Network communication

view network connections, view Wi-Fi connections, pair with Bluetooth devices, full network access

Storage

modify or delete the contents of your USB storage

Hardware controls

take pictures and videos, change your audio settings, record audio, control vibration

System tools

access Bluetooth settings, connect and disconnect from Wi-Fi, access USB storage filesystem, prevent phone from sleeping

Extra

android.permission.ACCESS_BACKGROUND_LOCATION, android.permission.BLUETOOTH_CONNECT, android.permission.BLUETOOTH_SCAN, android.permission.FOREGROUND_SERVICE, android.permission.FOREGROUND_SERVICE_CONNECTED_DEVICE, android.permission.POST_NOTIFICATIONS, android.permission.READ_MEDIA_AUDIO, android.permission.READ_MEDIA_IMAGES, android.permission.READ_MEDIA_VIDEO, com.dc.battery.monitor2.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION, com.google.android.gms.permission.AD_ID

Ad network libraries

None found

Social libraries

None found

Development tools

Android Jetpack core

Android Architecture Components

Android Jetpack VersionedParcelable Android Jetpack Annotations Android Library Icon

Android Jetpack Annotations Android Jetpack Widgets Android Library Icon

Android Jetpack Widgets Android Jetpack AppCompat Android Library Icon

Android Jetpack AppCompat AndroidX Activity Android Library Icon

AndroidX Activity Android Activity Saved State Android Library Icon

Android Activity Saved State AndroidX Loader Android Library Icon

AndroidX Loader Android Jetpack Media Android Library Icon

Android Jetpack Media

Android Transition Support Library

Android Support Library collections Kotlin Android Library Icon

Kotlin

Android Support VectorDrawable

AndroidX Legacy: Support Library core utils AndroidX Cursor Adapter Android Library Icon

AndroidX Cursor Adapter

AndroidX Local Broadcast Manager

Android Support Library Print

Android Support Library Document File Google gson Android Library Icon

Google gson

AndroidX Legacy: Support Library core UI

Android Support Library Async Layout Inflater AndroidX Widget ViewPager2 Android Library Icon

AndroidX Widget ViewPager2 Okio Android Library Icon

Okio

JetBrains Annotations IntelliJ IDEA Android Library Icon

IntelliJ IDEA Glide Android Library Icon

Glide

AndroidX ExifInterface ReactiveX Android Library Icon

ReactiveX

The Checker Framework Android Library Icon

The Checker Framework Reactive Streams Android Library Icon

Reactive Streams greenrobot EventBus Android Library Icon

greenrobot EventBus Umeng Android Library Icon

Umeng

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