Until recently I have only had 1 hybrid mech mod in my large collection of many different mods. When I wanted to check my battery life on any of my other non-hybrid mech mods with an inline voltmeter everything was fine. The first time I used the voltmeter to check the battery life on my hybrid mod the battery instantly stopped working and would not work on any other non-hybrid mech mods and would not register in my charger either. I now own 7 hybrid mech mods and being able to check the battery life on them would be very convenient. However, I am apprehensive to check my hybrid mech mods with a voltmeter because I don't want to kill any other batteries. Do hybrids short out batteries somehow when using a voltmeter? Was this just a coincidence (that seems very unlikely though)? Jeff