Overview Place of Origin: Dongguan City, Guangdong Province, China (Mainland) Brand Name: Sum Name: 405597-2S Rechargeable Solar Lithium Polymer Battery Type: 303040 Dimension: 8*55*99ï¼?mmï¼? Nominal Capacity: 2800mAh Minimum Capacity: 2800mAh Nominal Voltage: 7.4V Load Voltage: 8.4V Charge Voltage: 8.4V Charge Current: 1.4A Charge Time: 2-4h Internal Resistance: 150m © Life Cycle: 500 times Suitable Type: Standby Power Supplier. Terminals: Various High capacity, ultra-long standby, high energy consumption battery equipment. Certification: UN38.3, CE, ROHS, UL, FCC, FC, IEC62133, CQC, UN38.3, MSDS. Supply Ability: 10000000 Piece/Pieces per Month Packaging Details: Blister card or bulk package Port: Shenzhen Payment: Western Union, PayPal, T/T Warranty: 12months Lead Time: Sample 7-15 days, Quantity order 20-25days Delivery Time: 7-10 days after confirming the order Storage Temperature: -20 - 60 Operation Temperature: -40 - 80 Feature: Safety, high capacity, and cost-effective. Non-pollution, No need special handling. With Leaking-proof protection. Chemistry composition: Anode: MnO2, Cathode: Mercury-free zinc powders, Electrolyte: KOH It has high capacity, High power, high cost performance and Good discharge performance under low temperature, it can be sued in the -20 New green energy of environmental protection 0% Mercury/ 0% Lead 0% Cadmium Technical standard: GB/T8897.2-2013