One chip NiMH charger?

Thread Starter

CVMichael

Joined Aug 3, 2007
419
Is there a one chip easy to use charger that I can set mAmps and voltage to charge?
I need to charge two, 9V NiMH batteries, 200 mAh each in parallel.
 

Ctenom

Joined Nov 1, 2010
59
Fast charging can reduce overall battery life yes. im sure you can configure it to charge at what ever current you like. like i said i haven't read the data sheet. all i know is that a 9v rechargable has 7 cells so you need to configure it as such. just read though the data sheet there is bound to be a trickle charge setting. or if you wait a bit im sure someone else will post a better example
 

crutschow

Joined Mar 14, 2008
24,709
Is there a one chip easy to use charger that I can set mAmps and voltage to charge?
I need to charge two, 9V NiMH batteries, 200 mAh each in parallel.
You can't charge them in parallel.

You can use two separate circuits to charge two batteries or charge one and then switch to the other.
 

Thread Starter

CVMichael

Joined Aug 3, 2007
419
Why not? Isn't it the same as charging one 400 mAh battery?

I know that NiCd batteries can't be charged in serries or parallel.
 

bountyhunter

Joined Sep 7, 2009
2,512
Why not? Isn't it the same as charging one 400 mAh battery?

I know that NiCd batteries can't be charged in serries or parallel.
Never parallel connect batteries because it's dangerous. They are never exactly matched so one battery can be forcing current into the other. It's very bad practice.
 
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