Descriptions: Battery type: LiFePO4 battery Model: IFR18650-2S3P Nominal voltage: 6.4V Nominal capacity: 4500mah Discharge current: 1C Charge current: 0.5C Size: 38mm*57mm*75mm Weight: 245g/pc Cycle life: 2000 times With PCB/PCM and wires Hailei energy: Established in 2001, top battery manufacturer Two manufacturing bases covering 180,000 square meters Global insurance and 1-year warranty for lithium polymer battery Certificates: CE, UL, CB-IEC62133, MSDS, UN38.3 and more Lots of models for choices Business scope: Lithium-ion battery Li-polymer battery LiFePO4 battery Ni-MH battery Li-SOCl2 battery Li-MnO2 battery Li-FeS2 battery Inquiry about our products is welcomed anti-static bag + white box + outer carton for the 3.7v 1800mah rechargeable battery