I just bought a Joye 510 and a PCC and was wondering if there was anything that I can do to preserve the lifespan of my batteries. Should I only fully drain them then only fully charge them or is it ok to charge a half dead battery back to full again? As far as the PCC goes is it ok to have a vape then put the battery back into the PCC to charge back up after only being used a little or will the battery develop some sort of memory where it lasts for shorter periods of time? I know batteries don't last forever but is there anything that I can do to help make mine last for a longer lifespan? P.S. sorry if this has been covered before, I couldn't find it anywhere. 