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Old 02-01-2010
Harris Magnum Harris Magnum is offline
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Join Date: Dec 2009
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Quote:
Originally Posted by Si Coe View Post
A 20C 3000mAh pack can deliver 3A for 3mins (effective rate 60A)
A 20C 6000mAh pack can deliver 6A for those same 3mins ie 120A.

A 3000mAh 40C pack could discharge itself in 1/40th of an hour or 1.5mins. That too would allow an effective current of 120A

These are continuous discharge figures, and since as you pointed out a race is only 6mins long (and you don't use the whole pack in a race) it shouldn't really matter. However, the burst discharge rate is closely related to the continuous discharge rate - normally around double. Since 4wd cars with 5.5-6.5t motors can pull up to 200A under hard acceleration the 20C 3000mAh pack can only put 120A and is not going to accelerate that well. The 20 6000 pack can manage up to 240A and is going to shoot off the line!
Seems to make sense and whilst I'm sure it'll be a bit too much for me to start with I'm going to need it pretty soon.

So whats happening with the snow, is anyone going down today?
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