... outer sealed completely, no memory effect Type, 4800mAh Description,Polymer Li-ion battery is high quality, outer sealed completely, no memory effect ... PRF-103,When air flow regulate maximum, the Li-ion battery can work for 6hours continuously, when air flow ... Li-ion battery can work 8 hours continuously. If not using in long time, please preserved half charged.Weight, 360g. Polymer Li-ion Battery