Okay so I got 2 brand new LG He4's and I charged them and put them in my mod. I ran them down to about 50% and threw them on my Nitecore UM20 today. One battery is already 100% charged and the other is struggling to get past 60%. I put them on at the same time so they should have both finished equally. I got them from RTD Vapor. I wonder if I got a bad battery or something else has happened