These batteries have a low self discharge, so they can sit for 12 months before they begin to lose power. Designed to be used with Guide 10 Plus Recharger.
Use these 4 rechargeable NiMH AAA batteries in anything you have that requires AAA's. Use them up, when they're dead, recharge them with a Guide 10 Plus. You can do this for an average of 300-500 cycles. These batteries also have a low self discharge which means they can sit on your shelf for 12 months before they start to lose effectiveness.