The Autohil ABM2 is a great way to test and monitor 12V batteries using your iOS and Android devices. Comes with a free iOS and Android App which can be paired with multiple ABM2 battery monitors via bluetooth 4.0. Keep an eye on an entire family of batteries. Check battery charging and cranking systems and monitor real-time voltage data and historical rip and voltage logbook. Set notifications and alarms to your preference!


  • Free iOS and Android app that can connect with up to 4 Autohil ABM2 Bluetooth battery monitors. Data displayed separately for each battery!
  • Monitor battery and health with iOS and Android devices
  • Check vehicle's historic and real-time voltage data in gauge and graph format
  • Run vehicle's cranking system tests while engine is starting
  • Check charging system (alternator)
  • Log trip data (Duration, time and date)
  • Receive alerts of battery abnormal conditions when in Bluetooth range
  • Data stored in device up to 35 days if out of sync
  • Engine starting detect automatically
  • Free app for iOS & Android users
  • Compatible with all 12-volt vehicle batteries
  • Great for 4X4 and passenger vehicles


  • Average Current 1mA
  • Input Voltage: 6-20V
  • Operating Temperature: -40C - 90C
  • Physical Dimensions: 5.5 X 3.5 X 1.6CM
  • Voltage Accuracy (6-12V): -/+0.03V
  • Ultra-low power consumption, average current: 0.6mA
  • Short-circuit Protection: Built-in
  • Reverse Connection Protection: Built-In
  • Bluetooth: 4.0
  • Bluetooth Name: Battery Monitor
  • App Name: BM2
Barcode # 0735850603575
Brand Autohil
Shipping Weight 0.3000kg
Shipping Width 0.200m
Shipping Height 0.070m
Shipping Length 0.200m
Unit Of Measure ea

Bluetooth Battery Voltmeter Monitor

By: on 25 May 2021
Love this unit! it was easy to install on the battery and easily connected without any issues to my S10 mobile. As i have a dual battery fitted under the chaises it is an easy method to monitor the heath of it. I have also fitted this unit to the main starter battery and can i monitor both in the same app

Ok, but could be great. Not worth $50.

By: on 19 December 2020
Can only be used while standing right next to the battery. The IDrive product i saw a review on YouTube and it works from 10m away. Also the instructions in the app are all chinglish. Shows the products origins and perhaps why the product needs improvement. You cannot switch between batteries easily if you have more than one. And when you get notifications you have no idea what battery it's for. So pretty dumb.
(3) Response
Hi Aaron, The device uses bluetooth 4.0 so the range should be greater then 10m. We do get proper range while testing as well as when using the monitor for personal use. To monitor multiple batteries in one app you do require different app BM3 as it is explained in the main features on the ABM2's product page.

Autohil monitor

By: on 7 October 2020
I'm using mine to keep an eye on the second battery in my D Max and which feeds an Engel 40 litre fridge freezer(20 years old).The monitor gives an accurate reading and looks as flash as a rat with a gold tooth on the phone.

Bluetooth voltmeter

By: on 8 April 2020
Great product, does exactly what it’s says and easy to install

Great Product

By: on 12 March 2020
Loving this product. 10 mins to install, worked instantly and gives you far more information on your batteries than a standard amp or voltage meter. A really conveinient way to monitor the health of your bateries and the performance of your 12v set up.

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