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Mixing batteries?

Can you mix lead acid and Ni-Cd batteries in a RC car, if they are rated the same?

aurora83 Tue 05/08/08 10:34

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beso
Tue 05/08/08
10:54

Batteries should alway be the same type and capacity. The differences in discharge characteristics would inevitably lead to unbalanced cells.

buildersmate
Tue 05/08/08
11:48

If you are putting them in series to get a voltage output of the two individual cells it would work, but it is not good practice.
Putting them in parallel is a no, no.
I take it you are not racing the car - Lead acid cells are heavy for the power output capability.

fo3nix
Tue 05/08/08
12:35

No.

ianmunt
Tue 05/08/08
16:07

one or the other but definitely not a mix

aurora83
Tue 05/08/08
16:51

Question Author

Ok, I think slight misunderstanding, which is my fault for not explaing clearly.

When i say mixing, I don't mean combining the two batteries together. My RC car came with a lead acid battery which is now dead. I want to know if i could buy a similarly rated Ni-Cd replacement instead of a lead acid. Or will the circuitry be designed for lead acid.

The main reason for this is that the lead acid battery supplied with the car is 10V, and I can't find any 10V replacements.

buildersmate
Tue 05/08/08
19:53

You can do that. Definitely a good solution for you.

ianmunt
Wed 06/08/08
09:36

I suggested that on an earlier posting!!

4candles
Thurs 07/08/08
15:25

NiMH or Li-Po would be better - here's some from a good source:

http://www.component-shop.co.uk/index.html

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