2PCS BestFire 18650 Battery 3400mAh 40A 3.7V USB Rechargeable Li-ion Battery With Protection Board

Specification: Brand BestFire Material li-ion Model 18650-3.7-3400 Voltage standard voltage 3.7v, full voltage 4.2v, discharge voltage 2.75v Charging time Standard charging 3.4 HRS(h) for 1000mA Quick charging 2.0 HRS(h) for 1600mA Maximum continuous current 3A Protection current 3A Internal resistance within 60 milliohms Capacity nominal 3400 mah Positive pole flat head Service life 1300 times Dimensions diameter D18.35 mm * height H67 mm Weight about 110g Features: 1.Replace dry battery perfectly.Energy-saving and durable. 2.With constant voltage 3.7V and USB wires for convenient charge. 3.Equipped with Micro USB charge port,which is convenient and efficient. 4.Intelligent power chip inside to make sure the charge up to 99% with constant voltage. 5.Cycle life>3000,increase 200% than normal battery which fits the low-carbon life style. 6.Charge it anytime anywhere, no need to afraid that whether the battery run out. 7.Short-circuit protection inside and it is unwarming for long time charging. Package included: 2xBestFire 18650 Battery 3400mAh 40A 3.7V Rechargeable Battery