Thread: Charge rate
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BrianG
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08.15.2009, 04:07 PM

Quote:
Originally Posted by zeropointbug View Post
...You don't actually get a linear decrease in charging time per charge rate, it is merely the MAX charge rate during charge, the higher the C rate you set the charger at, you will hit CV phase after CC phase exponentially sooner, thus making the very top end of the C rate spectrum, the benefit seems to drop off a bit. I have found 4C is only a few minutes longer than 5C, and definitely not 25% longer, which it would be in theory.
That makes sense. Cell resistance plays a definite role in this. The higher current you charge, the higher voltage it will take to generate that current, and so hits the 4.2v/cell threshold faster.
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