corsa.v6
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Registered: 10th May 06
Location: in my caravan all over
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im looking at AA baterys
whats the difference between ni-cad and ni-mh
are they the same or is there a massive difference anyone
i need some for my rc car 
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AndyKent
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Registered: 3rd Sep 05
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I think nimh are a bit cheaper but unless you use them warm off the charger they are not as good a performance as nicad. I'd just go with nicad, will be cheaper to find a charger for these anyway.
I fly model planes and have nimh in the transmitter and nicad in all the planes......seems to work well 
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DarkBahamut
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Registered: 4th Jun 06
Location: Cambridge, Cambridgeshire
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Ni-MH are much much higher capacity than Ni-CADs are.
Most Ni-CAD AA batteries are around 700-800mAh, Ni-MH ones are up to 2700mAh now. If it something that needs good power/battery life then Ni-MH are a million times better. I wouldnt consider Ni-CADs at all these days.
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corsa.v6
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Registered: 10th May 06
Location: in my caravan all over
User status: Offline
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ok
but my rc car says in the manual use ni-cad
would it matter if i used the other ones instead?
anyone into rc moster trucks?
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AndyKent
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Registered: 3rd Sep 05
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quote:
Originally posted by DarkBahamut
Ni-MH are much much higher capacity than Ni-CADs are.
Most Ni-CAD AA batteries are around 700-800mAh, Ni-MH ones are up to 2700mAh now. If it something that needs good power/battery life then Ni-MH are a million times better. I wouldnt consider Ni-CADs at all these days.
But you're talking about the packs - you can easily make up a high capacity nicad pack if you use the right cells....
I'd just stick with nicads mate.
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DarkBahamut
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Registered: 4th Jun 06
Location: Cambridge, Cambridgeshire
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You'd still struggle to get anywhere near the capacity Ni-MH offers, and you'd have classic Ni-CD draw backs like the memory effect if you dont fully dischage the calls every so often. The only downside to Ni-MH batteries is that they have a slightly higher discharge rate than Ni-CD batteries do, but if your using the batteries not too long after you charge then (within a few months of charging) than they are much better.
Its like going to buy a new car but then asking for a less powerful more fuel hungry engine from 20 years ago in it instead of a nice new engine. Theres no real reason you'd do that.
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AndyKent
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Registered: 3rd Sep 05
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Well, if you really want the newest technology you'd choose li-po.......but that another thread 
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