Features:Nitecore 18650 3.6V Protected Li-ion rechargeable batteries.
Protected: Internal PCB protection prevents under-voltage at 2.5V and over-voltage at 4.25VCapacity: 3500mAh
Voltage: 3.6VChemistry: Li-ionRecharge: up to 500 cycles
Max Charging Current: 2AMax Discharge Current: 4A
Recommended Charging Current: 1A
Dimensions: 2.72" x 0.72" (69.2mm x 18.3mm)
Weight: 1.6oz (45.6g)