QUOTE="UncleJunkle, post: 22891901, member: 49006"]Yes, get a charger and don't leave batteries in mods for extended periods of time. I have a couple mods that will drain the battery slowly and over a span of a couple weeks the battery is drained so far that the over discharge mechanism in the battery is tripped rendering the battery useless. This is a potentially dangerous situation. Happened to me 2 times. Learned my lesson.[/QUOTE]
I was lucky to read in passing somewhere on efc - * Not to use USB to charge Removable Batteries inside MODs As a novice vaper I was used to using USB connection to charge Built-in Battery MODs. Guess its not the same with Removable Battery MODs?

I got this, not expensive easy to us from Liion wholesale. Works well for me, I never let my Batteries Drain Completely.