Help! Bought wrong battery type...

Discussion in 'General Electronics Chat' started by cjgno, Feb 7, 2012.

  1. cjgno

    Thread Starter New Member

    Feb 7, 2012
    I've just bought 2 Li-ion batterie and respective charger in the hope that I could easly replace the non-replaceable one powering my new headphones.
    Because things are never as easy as they seem, the project didn't work...
    Hence after browsing a bit on the net I landed here for help.

    My headphones are powered with an Li-Ion battery with the following characteristics:

    3,7V, 500mAh, and 2,0Wh

    It's lettering are: +AHB622540 and OA21200-0021

    I've bought, thinking only on voltage and more capacity, the following one

    3,7V, 1700mAh, 6,2Wh

    Model No: CS-NP170MC
    Part No: NP-170, CB-170

    I'm guessing the problem is the difference in output?
    Anyway, Is there a way that I can use the new battery? Maybe using a resistence?

    Thanks in advance.
  2. bountyhunter

    Well-Known Member

    Sep 7, 2009
    Exactly what didn't work? The battery should power it no problem.
  3. cjgno

    Thread Starter New Member

    Feb 7, 2012
    When i use the original battery everything works, leads light on, and i can talk and ear ppl. when I try the new battery, the leads won't light up.
    If yous say it should work (as I 1st thought also), then it's maybe a polarity problem, since I dunno the native battery polarity.
    But I've tried to invert it too...
  4. cjgno

    Thread Starter New Member

    Feb 7, 2012
    Ok, thanks for the help, really helped me cause I was getting confused :)
    The problem was in my home-made battery adapter that was'nt making good contact with the battery (thought it looked to me it was :()
    Anyway cheers :)