Turning a Li-ion Charger into nimh

Discussion in 'The Projects Forum' started by MMH, Mar 17, 2013.

  1. MMH

    Thread Starter Member

    Feb 8, 2013
    Hello there everybody!!

    I was thinking whether a Li-ion charger can be used to charge Nimh batteries.
    I have a li-ion charger(3.6v) which came with the Cannon Digital camera. It turns red while charging and green when fully charged. What if I use the LM317 to get 1.6v constant current for my 1 NIMH battery?? Will it work? By the way, why does a Li-ion battery has 3 poles-one for negative, one for positive and one for earth?? If I use a NIMH will I connect earth to Negative??

    Thank you.
  2. bountyhunter

    Well-Known Member

    Sep 7, 2009
    NO. The batteries are not compatible.
  3. toffee_pie

    Senior Member

    Oct 31, 2009
    The 3rd prong in Li-ion chargers is most likely for control, ie BMS.
    MMH likes this.