ZWDCVFGK Rechargeable Battery 3.7V 2000mAh Li-ion Large Capacity Portable Flashlight Replacement Battery

1,[Environmental Protection Material]: 3.7V rechargeable Energy Storage lithium battery, using lead-free lithium ion battery, with 500~1000 recharge times, compared to disposable batteries, lithium batteries are more environmentally friendly and affordable. 2,[Multi-purpose Application]: The 3.7V rechargeable battery cells can be used as energy storage power supply for home solar power supply systems, LED lights, outdoor monitoring equipment, solar lights and other power supply equipment,It can also be DIY in series and parallel to become a 12V/24V battery pack. 3,[Safety Performance] : 3.7V lithium battery uses Lithium ion as the material to make a rechargeable lithium battery, built-in integrated safety circuit protects battery from over-charge, over-discharge, short-circuit and over-heat, ensures complete safety for the battery. 4,[Specifications]: Voltage: 3.7v; Amp: 2 Ah; Weight: 0.12lbs; Dimension: 2.56*0.7*0.7 inches (L/W/H).Standard Charge: Constant current 0.5C (1000mA) Constant voltage 4.2V Max.charge current:Constant current 1C (2000mA) Constant voltage 4.2V,Max. Charge Voltage: 4.2V±0.005V,ax. Pulse Discharge Current:3C(6000ma). 5,[Service Warranty]: 2 pieces Lithium battery cell/Box,If you have any questions during use, please feel free to contact us. We will reply within 24 hours.