7.4V 13400mAh Smart lithium battery Key Specifications/Special Features: Single battery voltage: 3.7V The nominal voltage of the battery pack after assembly: 7.4V Single battery capacity: 3350mAh Battery combination: 2 strings and 4 parallels Battery voltage range after combination: 5.0V-8.4V Battery capacity after combination: 13400mAh Battery pack power: 99.16Wh Battery pack size: 20*77*135mm Maximum discharge current: <3A Instantaneous discharge current: 5-7A Maximum charging current: 0.2-0.5C Charging and discharging time:> 500 times Packing method: PVC heat shrinkable film Wire model: PH-2.0-6P