Thumb Score: +6 Eneloop AAA New 2100 Cycle Ni-MH Pre-Charged Rechargeable Batteries, 8-Pack [amazon.com] Usually ships within 1 to 4 weeks. Recharge up to 2100 times Maintain up to 70% of their charge after 5 years (when not it use) 800mAh type, 750mAh min, Ni-MH pre-charged rechargeable battery Pre-Charged at the factory using solar power and ready to use No memory effect - batteries can be recharged when fully, or partially discharged