Voltage:3.2V Capacity:3500mAh Alternating inner-resistance:≤35mΩ Cycle life:>2000 cycles Charge mode:CC/CV Cell:26650-3.2V/3500mAh Housing material:PVC Features: Smaller volume, but high-energy Extended using time Longer cycle life, environment-protection Better temperature performance Enhanced safety Accepts customized Application: solar storage  cap-lamp flashing night and other applications For more customized new battery solution,please feel free to contact us.