Guys - i purchased a mygo 2.0 vv (i think it is a YJ). It came with 2, 18650 1600mah, 3.7v batteries. I want to get a couple more batteries in case zombies take over. Would 18560 2000 mahs work? Or would these blow my vv? Also will I need a new/different charger or will the one that came with the kit work? Thanks.