Brand new sealed package 8-pack AA battery High Capacity ：Include 8 pcs Nimh rechargeable batteries AA ,3300mAh ,power the device for a long time. Up to 1200 Cycles : Deleepow rechargeable Nimh batteries can be charged up to 1200 cycles ,high conductivity anode,low internal resistance ( Please charge it once at least every 30 days to keep batteries active). Safe And Reliable : Deleepow rechargeable AA batteries built in overcharged and overdischarged smart security chip,no problem even if charged over than 24 H. Protect Environment :Rechargeable Nimh batteries don’t have HG,no pollution to environment ,rechargeable batteries can save your money .