Packing list: 90mAh battery x 1. Specification: Material: Lithium polymer battery Capacity: 90 mAh. Nominal Voltage:3.7V Power:0.333Wh Work Voltage: 3.3 to 4.2vSafety Features: The 3.7v rechargeable Lipo battery is built with high-quality materials and features built-in protection against overcharging, short circuits, this ensures the battery operates optimally and eliminate the risk of any potential hazards. SOLDER The WIRES:the battery wires need to solder, Weld it to the PCB board in the order of the original battery wires. -- The RED wire is solder to the positive pole of PCB "+", the BLACK wire is solder to the PCB negative pole"-". 90mAh Battery Replacement for Jabra Talk 25 SE ,BlackBerry HS-700,OTE27,classic,BT4010, M5390, fits Jabra Talk 25 SE battery replacement, BlackBerry HS-700 battery replacement,,OTE27 battery replacement,,classic battery replacement, BT4010 battery replacement, M5390 battery replacement. The 3.7v Lithium polymer battery complies with Explorer 80 (205020-01),204666-05 ML15,Explorer 50 ,EITE16 ,E210,E240,E500, fits Explorer 80 (205020-01) battery replacement, 204666-05 battery replacement, ML15battery replacement, Explorer 50 battery replacement, EITE16 battery replacement, E210 battery replacement, E240 battery replacement, E500 battery replacement.