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Registered Member #27
Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058
It depends on the type of cell and how long you want it to last. 3C is fairly safe so if the capacity is 2.3 Ah you can pull 7 A (2.3*3) without any danger of ruining them.
You may get away with 10 C until they get too hot if you are not worried about lifetime and you don't care about the reduced voltage. Some special high current types may be able to stand much higher currents.
Registered Member #27
Joined: Fri Feb 03 2006, 02:20AM
Location: Hyperborea
Posts: 2058
10 C is ten times the rated capacity, so a 2.3 Ah battery can supply 23 A.
The short circuit current can be well over 100 A on some cells, that will heat them up very quickly and give them a very early death. It may cause them to explode which is going to be very unpleasant.
Registered Member #15
Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
rp181 wrote ...
Does anybody know how much current a 14.4v NiCd drill battery can supply? I cant find anything on it.
First, you need to get the specs for your particular battery. Also, you need to define your question a little better. How much current, but at what voltage? As you increase current, the voltage will drop due to internal impedance of battery. So you really need to find out the battery and get a spec sheet so you can accurately define the answer to your question.
Kind of like asking, i have a car, how fast can it go? Well is it a buick, a honda, a porsche, a ferrari, a formula 1 race car????
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battery current
