18650 charging time

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Kanj.nguyen

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Jan 18, 2013
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Princeton, NJ
Take the charge capacity of the battery, divide it by the output of charger. A 2000mAh battery takes 4 hours to get from completely drained to fully charged on a 500mAh output charger.

This is of course theoretical. There are many variances i cannot account for. But with a high quality battery and high quality charger, the actual result should not deviate too much from theoretical calculations.
 

dradeel

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Mar 7, 2013
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Trondheim, Norway
I'd say my 2000mAh AW IMR 18650s take roughly 5 hours on my 500 mA Trustfire charger. I've never timed it, but I've had it done in about 5 hours at least, so my guess is it takes a little less than that, which means it's not too far off the 2000mAh/500mA=4h formula, taking into consideration some inherent uncertainty.

I have several batteries exactly for the reason of having to wait. There's always a freshly charged battery at hand! :closedeyes: When buying a PV that takes 18650s, getting two 18650s, or perhaps a 18650/18350 combo in the case of the Vamo, is a choice you will never regret.
 
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