Battery Type: Lithium Ion Battery(NCM) Nominal Voltage: 7.4V Nominal Capacity: 9Ah Charge Cut-Off Voltage: 8.4V Discharge Cut-Off Voltage: 5.5V Max charge current: 1.0C Max continuous discharge current: 1.5C Peak discharge current: 3C(700 times Application: Bluetooth speakers, toy car, robot, miner light, etc