PANASONIC ENELOOP Ni-MH PRE-CHARGED RECHARGEABLE BATTERIES This range of Panasonic Eneloop batteries have numerous advantages over regular rechargeables. Key characteristics include: low self-discharge They are pre-charged so can be used right out of the packet Eneloop Batteries can be re-charged up to 1800 times. After 5 years of storage they will retain 70% of their capacity once fully charged. Eneloop