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Thread: Love this remote Bluetooth battery monitoring

  1. #1
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    Love this remote Bluetooth battery monitoring

    Nice being able to have a handle on EXACTLY the state of charge of my crank and aux batteries

    Highly recommended

    BM2 battery monitoring modules avail on eBay for about $30 each and the app is free

    The graph shows the state of charge yesterday from parked/Idle, dipping when the car starts, rising to approx 14.5V when charging (driving) to pulse trickle charging on the CTEK.

    The little switch on the left of the +ve terminal on the optima is a kill switch for the Traxide DBMS which btw definitely draws down from the cranking battery.

    Hope this helps some of you who deal with battery issues like me!

    Peace.



  2. #2
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    I’ve got these on on Starter battery, Aux Battery and also have one across the house batteries in my caravan.
    There is a app that allows you to monitor 4 of these at the same time.
    The one in the van is particularly useful as I can see the charge history, when lowest voltage occurs and also can see the graph dip when my compressor fridge kicks in.

  3. #3
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    Hi,
    Link??

    Cheers

  4. #4
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    super cheap auto have these for $50.
    great devices.
    have one over nearly every car and bike

  5. #5
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    Quote Originally Posted by austastar View Post
    Hi,
    Link??

    Cheers
    BM2​​ BLE Battery Monitor Bluetooth 4.0 Device Car 12V Battery Tester BM2?? BLE Battery Monitor Bluetooth 4.0 Device Car 12V Battery Tester | eBay

  6. #6
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    Quote Originally Posted by Ashes View Post
    I’ve got these on on Starter battery, Aux Battery and also have one across the house batteries in my caravan.
    There is a app that allows you to monitor 4 of these at the same time.
    The one in the van is particularly useful as I can see the charge history, when lowest voltage occurs and also can see the graph dip when my compressor fridge kicks in.
    I’m looking for that app .. the BM2 app allows you to connect multiple monitoring devices but only display one at a time.

    Switching between batteries is a bit of a pain

  7. #7
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    It is in the App Store as Multi-Battery Monitor. I think it was a paid app though. Works well.

  8. #8
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    Here it is: Multi-Battery Monitor by dacheng Multi-Battery Monitor on the App Store

  9. #9
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    Found them for $32 on eBay including delivery, Aus stock. An 18% off eBay special supposedly. Bought 3.
    2010 TDV6 3.0L Discovery 4 HSE
    2007 Audi RS4 (B7)

  10. #10
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    I bought my three from this seller 12V Vehicle Battery Monitor via bluetooth 4.0 Voltage Meter Tester w/ auto Alarm 725704230453 | eBay and use the $14.99 app to monitor all three together.

    Have my starter, aux and camper trailer batteries monitored. You can see when the sun hits the camper trailer solar panel.
    Attached Images Attached Images
    2014, MY14 Discovery TDV6, Fuji White (2018-Now)
    2003, Discovery 2a, Td5 Manual, Zambezi Silver (2012-2018)
    2007, Adventure Offroad Campers, Grand Tourer (2015-Now)

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