Panasonic Eneloop AA 2000mAh 2100 Cycle Ni-MH Pre-Charged Rechargeable Batteries 8 Pack Specifications: Ni-MH, Low Self Discharge rechargeable batteries 2000 mAh typical /1900 mAh Ni-MH minimum (AA) Feature: Eneloop 2000 mAh typical /1900 mAh Ni-MH minimum (AA) Holds up to 70% of their charge after 5 years of non-use Can be recharged up to 2100 times Pre-charged at the factory using power generated from solar energy and ready to use right out of the package Work in extreme temperatures down to -4 Fahrenheit Degree No memory effect - batteries can be recharged when fully, or partially drained Ni-MH, Low Self Discharge rechargeable batteries