EDCba
September 22, 2018, 7:49am
26
jon_slider:
I have also watched the voltage and current meter that I have inline with my USB battery charge cable, and Im happy to report that once the cell is full, the charge rate drops to complete Zero. I like that. I did not want to see a constant ongoing charge current… So again, very happy with the design of the charging discs. I still dont leave LiIon on charge unattended, and I charge on a metal surface, in case they were to “vent with fire”, but I have had no hint of any thermal runaway.
I recommend the Olight brand USB charging Protected 16340 without any reservations.
Shortly I will receive a Klarus Mi1c, that also comes with their own labeled version of the USB battery. If there is any problem, I will report back. Until then, unless you can find any other issues reported, I would say the USB chargeable 16340 are completely safe to use, and I give 2 thumbs up.
imho it is safe to say that there have been zero overcharging issues with the USB charging circuits. I like the USB batteries very much and recommend them highly. Super convenient to be able to charge from an Android phone cable, no need to carry a separate charger. otoh, the USB 16340 cells also work fine on a standalone charger. Zero issues there either.
Here is a little kit with spare batt and charge cable:
Lastly I can also charge the USB cells using the Olight Universal Magnetic charger… though imo it starts out a bit high, slightly over 1C:
Here is the Olight Universal Magnetic charger, showing zero current when the charge is complete, as confirmed by the green light.
Here are some of the various charging options I have mentioned in this post:
and a Camping Kit with multiple choices for charging, battery carriers, and chemistries
The chargers and batteries all have LEDs on indicating full charge. I don’t think they’re drawing power from the battery, so your meter probably can’t detect the small current. Are you sure there’s no trickle charge?