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Feature

4 Pack 1600mAh AA and 4 Pack 700mAh AAA Ni-MH rechargeable batteries
Up to 1200 times recharge cycles and low self-discharge make sure it maintain 75% rates capacity after 3 years no use
Charge 1- 8 packs of NiMH NiCD AA AAA rechargeable batteries
With a USB input interface, you can charge via varieties of charging options such as laptop, car charger, mobile phone charger, etc
Built-in MCU,automatically turn to trickle charge, overheat-detection to prevent over-charging, short circuit protection and reverse polarity protection, stop charging when voltage up to 3.4V