Battery Type: Li-ion Polymer battery Capacity: 500mAh Nominal Voltage: 3.7V Pack Dimension: 6.0 x 25.5 x 37.5mm Weight: 10g Working Temperature: Less than 60℃(140℉) Compatible Models: Dogtr a Transmitter iQ, DA210, iQ plus remote transmitter, TC L PR-562440N plus Coaster Cautions: 1. DO NOT ATTEMPT OPEN, DISASSEMBLE THE BATTERY. 2. DO NOT CRUSH, PUNCTURE OR DISPOSE OF IN FIRE OR WATER. 3. DO NOT EXPOSE TO ABOVE 60℃(140℉).