... 10" Voltage:7.4V Capacity:4500mAh Cell: Polymer 2PCS/Pack with PCB, Wire & Connector Polymer Battery for MID 10"Voltage:7.4VCapacity ... Products, Elctronic Toys and Portable Devices, RFID and so on. *Polymer Battery Pack with PCB, Wire & connector;*Function of PCB: Protection ... be adjusted while width and and heighth keep the same*Lithium Polymer is a better and safer replacement for Li-ion Battery ...