Mine just took a dump too, as in swole up! Pretty P/O. Never overcharged, always balanced, and seems all did it around the same time, my 2S shorties and my 2 4S packs. Shame really... I was all for SMC batteries, but i have old generic Chinese packs that are 2 years older and are still in great shape...

All batteries have been stored right, even inside my firesafe locker in a climate controlled room, makes no sense, guess ill be looking elsewhere now.