So my wife and I have been using these Joyetech ego Mega 900mah batteries since we got them on Jan 31. Starting today, they both started acting really weird. They stopped working with the three vision mini novas that we had with us. So we get home and I try a fourth mini nova that was sitting on my desk and lo and behold, it works on both of the batteries. So then I try the other three mini novas on them. Well the weirder thing is that one of the original three mini novas work on one battery, while the other two still won't. On the other battery, none of the original three mini novas work. I tested all all them on my multimeter and they are fine, within a normal range of ohm's. When I try using them no my eGo-C Twist, all four mini novas work fine. ...?! Oh and just for good measure I tried LR boge cartos on these batteries, and they work fine. ...?! Anyone have any suggestions? I read that sometimes recharging the batteries might "reset" them and I also read that sometimes pushing the button 10 times rapidly might work. No such luck.