Voltage of single cell: 3.7V Nominal voltage after battery pack combination: 7.4V Capacity of single battery: 2.2ah Battery combination mode: 2 string 1 parallel Voltage range of battery after combination:5.0~8.4V Battery capacity after combination: 2.2ah Battery pack power: 16.28w Battery pack size: 20* 39 * 67mm Maximum discharge current: < 2.2A Instantaneous discharge current: 4.4A~6.6A Maximum charging current: 0.2-0.5c Charging and discharging times: ＞ 500 timesThis is a widely used battery that can be used in home appliances, toys, and consumer electronics. At present, we have solutions such as handheld ultrasonic water depth gauges, smart riding helmets, etc.; if you are interested in this battery, you can also use it with Contact us. This battery is composed of two 18650 2200mAh batteries. We use high-quality batteries to ensure the quality of the finished battery. We pursue higher quality. We strictly follow the standards in every step of the process. Production to ensure the quality of finished batteries. In the past 12 years, our customers' satisfaction with us has exceeded 85%, and the finished product inspection pass rate has exceeded 98%. Our standards for ourselves are higher than industry standards. 