Originally Posted by brokenknee

Self-discharge........
IMHO the self discharge rate of lithium batteries is so low it is hardly a concern. If you don't use them in six months, just put them in the charger and top them off. NMh and NiCad on the other hand have a much higher discharge rate and should be recharged every two to three months. (if i were using for my bike, i would make sure they were fully charged before heading out)