Panasonic eneloop pro AAA Rechargeable Battery 800mAh

From the shop's description

eneloop is a long-life, pre-charged, energy and money saving, recyclable rechargeable battery which can be charged and discharged now even up to 2100 times. Features: Type: Rechargeable Battery Capacity: 800 mAh Can be recharged up to 2100 times Batteries can be recharged when fully, or partially drained Holds 70% of charge for five years