Not to be too alarmist, but flakey lithium batteries can be dangerous. I'd keep any suspect batteries away from anything that could burn, especially while charging. And when they very rarely do explode, it is often after they're taken off charger and 'powered' up.
Yikes.. that's the last thing I need.
I updated the firmware to 2.63 just to see if it might help but alas, no change.