M18 battery pin outs and charger help!

Discussion in 'Technical Repair' started by jonmarion, Apr 17, 2017.

  1. jonmarion

    Thread Starter New Member

    Apr 17, 2017
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    0
    Hello, New to the forum. I have a Milwaukee M18 Impact Driver and I was given it by a friend and only charger he had was a Milwaukee Jobsite Radio and of course he wants the radio back naturally, so i took the connector off the radio, so im left with the connector that the battery clicks onto which has five wires on it and so long story short and to the point, I was wondering if it was possible first of all, and how would i go about connecting it to another 18v charger i have (not milwaukee). Do it have to be milwaukee, or can i use another brand, what are my options and is there a diagram available?, in the long run of things im trying to be cheap and plus i just like to build electronics. Anyway please help and Thanks for your time.
     
  2. Dodgydave

    AAC Fanatic!

    Jun 22, 2012
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    894
    You need to find the correct charger for that battery, then you can work out what voltage and pinouts you need, chances are the battety will have 3 or more contacts, one will be a Thermistor, the others the +/- terminals, if the battery is a lithium it will need a special monitor chip, if its a nicad you can use a constant current circuit.
     
  3. jonmarion

    Thread Starter New Member

    Apr 17, 2017
    2
    0
    Thanks for the reply, it is a nicad battery, and there is five connections on this battery, i was able to remove the part for the radio were you connect the battery so i have that part wires and all, i just am not sure how to connect the to an existing charger, because most of all the 18v chargers I have looked at only have three to four connections.
     
  4. Dodgydave

    AAC Fanatic!

    Jun 22, 2012
    5,784
    894
    Best to post pictures of it.

    Came across this video

     
    Last edited: Apr 21, 2017
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