Specification: Brand Best Fire Materialli-ion Model 18650-3.7-3400 Voltagestandard voltage 3.7v, full voltage 4.2v, discharge voltage 2.75v Charging time Standard charging 3.4 HRS (h) for 1000m A Quick charging 2.0 HRS (h) for 1600m A Maximum continuous current 3AProtection current 3AInternal resistancewithin 60milliohms Capacitynominal 3400 mah Positive poleflat head Service life 1300 times Dimensionsdiameter D18.35 mm * height H67 mm Weightabout 110g
Features:1. Replace dry battery perfectly. Energy-saving & durable.2. With constant voltage 3.7V & USB (Universal Serial Bus) wires for convenient charge.3. Equipped with Micro USB (Universal Serial Bus) charge port, which is convenient & 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 & it is unwarming for long time charging. Package included:2x Best Fire 18650 Battery 3400m Ah 40A 3.7 V Rechargeable Battery