High Capacity: Mupoer AA rechargeable batteries has a 2800mAh high capacity and provide ultra strong power, no longer to worry about the endurance of the batteries. 1200 Recycle & Reuse: Mupoer Pre-charged AA supports 1200 cycles of use, it is a perfect combination of convenience and economy. Ready to Charge, Ready to Use. Low Self Discharge: Thanks to the embedded enclosed structure, the battey has no memory benefit, and more than 85% of the electricity can still be retained after 3 years. Real 1-time charge, 3-years reserve use. No Pollution Material: Ni-MH eco-friendly cell, doesn't contain Hg/Cd/Pb. It is a reusable clean energy AA battery, make contributions to environmental protection. Safety Protection: Top DBCK steel shell has high density and corrosion resistance, bringing powerful security protection, preventing leakage, explosion, high and low extreme temperature.