rechargable battery longevity

[slow6]

I've had rechargable batterys completely die from being stored with a full charge and no charge.

What is better for storing? to have a full charge, half charge, or no charge?

I know batteries develop a "memory" if you dont fully deplete them first, then recharge them.

[98Camaro3.8]

All depends on the type of battery.

Some battery types will discharge by themselves when stored.

Other types develop the memory if you don't use them all the way.

http://is.med.ohio-state.edu/policies/battery.htm

[mwh27]

^^^ Yep.

It depends on the chemical compostion of the battery because they all have different charge half-life's.