Two channel 18650/14500 charger question.

[Lin Swimmer]

Hey all.

Getting some LiMn 14500s, and was a little unsure of how the fairy dust making my vape is moving around in these little tubes.

I have a medium-low quality charger with two 18650/14500 bays that are supposed to be isolated 1 AHr channels. Most of the 14500s I've looked at recommend a max charging rate of 0.8 AHr.

I have a meter, but don't know how to read my charger poles. I don't have tiny attachable diodes.

The charger instructions claim it has constant current and voltage mode, and the cutoff is through reverse polarity. No mention of trickling. (Maybe it's embarrassed.)

How concerned should I be that the low resistance of the IMR will cause it to overcharge? Or, alternatively, how can I find out if my charger slows itself down as the cell reaches its fully charged state?

I'll get a better charger, I just wanted to know if I need to do it this instant to not spoil a set of new cells.

Someday I'll get some of these user serviceable cells.

lico 18650 cell puncture test. - YouTube

 

[Lin Swimmer]

Ugh. The company's product listing says "2.5V - 4.25V." But my 18650s have come out at 4.20V - 4.22V four hours after charge, so it at least turns green at 4.20V and not >4.23V.

Met a random friend of a friend that uses 18650s in paintball packs. It sounds like he had some fancy programmable charger; he said his charges take forever because he sets it low. Jealous.

 

[Lin Swimmer]

I'm an idiot; they're rated fine at an amp.

My charger should be fine, since I just ended up ordering 8 IMRs in two formats from China and Japan.

I missed you, battery forum. How is everybody?