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NIMH cell (balancer, discharger, equalizer) -
02.10.2008, 01:44 AM
I am wanting to make a discharge tray for my 7 cell SxS NiMH batteries. I was wondering if anyone on here knew of a way to make a discharge tray relatively cheap. I figure something to create a 2-2.5 amp draw, and something to break the connection once less then 1.0v is reached.
I am wanting to follow the instruction for maintaining my batteries from SPC, and it says to discharge the cells to 0.9v each on a Novak or MuchMore battery tray. Neither of which is cheap, nor can they handle more than 6 cells at one time. The Tekin Battery Doctor 8.0 is a little cheaper and can handle up to an 8 cell pack, but it goes all the way down to 0.5v each. Not to mention that by the description, I don't feel that the batteries are really isolated from each other the way I think they need to be. Could you use an old automotive light bulb and some kind of circuit designed to stop the drain once 0.9v is reached, and if so, could someone tell me what I would need. I work on electronics for a living and can repair circuit boards, but I am not very good at designing circuits from scratch. Any help would be great.
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