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How to? XH-M603 charge controller to charge auxillary battery in van?

Discussion in 'Power Electronics' started by ju1234, Mar 31, 2021.

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  1. ju1234

    ju1234

    3
    0
    Feb 24, 2018
    I am thinking of installing an auxillary battery in my van. The usual split charging systems or the DC-Dc devices are quite expensive. I thought of using the below charge controller module XH-M603, only $5, for this purpose. What do you think?

    https://www.ebay.com/itm/1PC-New-XH...control-protection-switch-12-24V/303401260699

    Here is how I plan to connect it: + & - (or body ground) from the starter battery will give the input to the XH-M603. Output will be connected to the auxillary battery. The board will be set to turn the charge on at 13.6v (means when the alternator is on) and turn off at 12.6v. This way the starter battery will not drop below 12.6v.

    Does this sound right?

    A second question: how to wire the battery from an unused fuse socket inside the vehicle? Can this be done instead of pulling wires all the way from the starter battery? How?

    Thanks.
     
  2. Martaine2005

    Martaine2005

    3,308
    904
    May 12, 2015
    In theory, it could work.
    Watch this video carefully.



    Martin
     
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