... 37mm*67mm 5.Application for electronic device 3.7V 4400mAh 18650 li ion battery pack specification Model No.TLH-520AhCell BrandChina ... Capacity, resistance, Voltage, platform time consistency is good7, With short-circuit production function, safe and reliable8, Factory ... provide the li-ion battery 18650 with the capacity of 1800mah to 2600mah. such s 1800mah, 2000mah, 2200mah, 2400mah, 2600mah etc ...