When it comes to rechargeables, these batteries take the cake:

• Recharge up to 2100 times
• Maintain up to 70% of their charge after 10 years (when not it use)
• 2000mAh type, 1900mAh 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