Is is bad/wrong to charge 18650's in the rechargable light?
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ChrisGarrett
Flashlight Enthusiast
This light is designed to charge up 18650s? What light is it? Have you run the cells down, charged them back up and measured their voltages with a DMM, to confirm that the internal charging board isn't out of whack and overcharging things?
I personally don't care to buy lights that have internal charging boards, but that's just me. I understand the convenience and they can be quite safe, but I have too many chargers sitting around to let a light do their work for them.
Chris
Do you mean 2 bay independent charger?
Charging 3 of unprotected li-ion in series is not recommended and best way is recharge individually.
Charging 3 protected healthy cells can be done once a while but should not be habit.
Not all batteries remain same like new during years and one may loose capacity more than other. In this case, good one will reverse charge the other cell which is bad for both cells.
In general a flashlight which is designed and capable to recharge all batteries inside flashlight with balance (equally) charging is best way to go.
This means individually recharge each cell inside flashlight without need of removing.
Last edited:
LEDAdd1ct
Flashlight Enthusiast
—and not to scare you off, but improperly charging multiple LiCo cells in series can result in "Vent With Flame" condition...
