Free

Details

  • Released
  • Updated
  • February 26, 2022
  • August 3, 2026

Features

BAT-BMS screenshot #1 for iPhone
BAT-BMS screenshot #2 for iPhone
BAT-BMS screenshot #3 for iPhone
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About

Monitor your smart Bluetooth lithium batteries wirelessly from your phone. Track key metrics like state of charge, voltage, current, and temperature. Connect to multiple batteries simultaneously and view their data.

Wireless Bluetooth connection
Track cycle life
Display SOC, voltage, current
Monitor cell voltage and temperature
Connect to multiple batteries
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What's New in BAT

1.1.5

August 3, 2026

fix some bugs.

User reviews

Doesn’t maintain operational

A few months ago it stopped allowing me to toggle the charge and discharge on and off. Luckily it was all on when this occurred. They addressed the issue but add a password. That is a nice feature but they have not provided the password so the app is still useless to me. The app developer has not responded to my emails.
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This has been difficult to use

Now this app requires a password to change settings. There has not been one previously and there is no way to request a new one

The batteries drain separately one is at 1% and the other at 99%. All the time

Password?

All of a sudden you need a password to turn on and off your battery. And I don’t know how to make a password. And or where a preset password is.

Can’t use golf cart after update

After recent update now I am unable to use my golf cart.

App update 7/9/26

Ever since the app update to fix some bugs I have not been able to use my battery. The functions in the app do not work to switch the battery on and off

Developer apps

FAQ

What devices does BAT-BMS support?

BAT-BMS is designed for iPhones and iPods. Your phone must have Bluetooth 5.0 with Bluetooth Low Energy functions to connect.

How far can BAT-BMS connect to a battery?

The operating distance for BAT-BMS is less than or equal to 15 meters, allowing for convenient wireless monitoring.

Can BAT-BMS monitor multiple batteries at once?

Yes, BAT-BMS can connect to multiple batteries simultaneously. You can view data from other batteries by switching between left and right pages.

How do I connect BAT-BMS to a different phone?

To connect BAT-BMS to another mobile phone, you must first exit the app program from the currently connected phone.

What kind of batteries is BAT-BMS compatible with?

BAT-BMS is specifically designed for smart Bluetooth lithium batteries. It is not suitable for other types of batteries.

What specific data can I see with BAT-BMS?

You can track State of Charge (SOC), voltage, charge and discharge current, cycle life, cell voltage, and temperature for your batteries.

How often is BAT-BMS updated?

The latest version of BAT-BMS is 1.1.1, and it was last updated on November 2, 2023. This indicates regular maintenance and potential feature additions.

What is the user sentiment for BAT-BMS?

BAT-BMS has an average rating of 3.6 stars from 26 ratings. This suggests a generally positive but mixed user reception.