Place of Origin: Dongguan, Guangdong, China (Mainland) Brand Name: Sum Model Number: 104058-2P Size: 20*40*60 mm Battery Type: Lithium Polymer Battery Nominal Voltage: 3.7V Charge Voltage: 4.2V Charge Current: 1.4A Nominal Capacity: 5800 mAh Minimum Capacity: 5800 mAh Suitable Type: Standby Power Supplier Usage: Various high capacity, ultra-long standby, high energy consumption battery equipment 100% quality assurance: no leakage, no deformation, no rust, no stain Color: Picture(OEM Support) Jacket: Aluminum Foil Jacket Factory: Yes/ 12 years Packing: 2pcs/4pcs/Blister Card Pack or shrink pack Certificates: CE� ROHS� UL�FCC�FC�IEC62133�CQC�UN38.3�MSDS. Shelf Life Warranty: 5 years OEM: Welcomed Supply Ability: 100000000 Piece/Pieces per Day For Special Alkaline Battery may need more days Packaging Details: Battery Packed by Carton Port: Shenzhen Lead Time : Delivery within 2 days 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