kayo 2s 7 4 v lipo battery

{"cid":"91197950","title":"KAYO 56x47x69mm 20300mAh 2S 3.7 V Lipo Battery Pack","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/05\/26\/36ee9eb991e19e35a54f06c7bba2-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"KAYO","Model Number":"18650-Lithium-0521","Minimum Order Quantity":"5000 packs","Delivery Time":"25 days","Certification":"UN38.3, MSDS, CE, ROSH, CB, IEC62133","Place of Origin":"Shenzhen China","Payment Terms":"30% before production\uff0c70% before delivery","Supply Ability":"30000 packs per month","Packaging Details":"one pc in a plastic bag, and 20 pcs in a carton box","Voltage":"3.7 V","Capacity":"20300 mAh","Cell":"LITHIUM ION POLYMER BATTERY","Application":"traffic signs batteries","OEM\/ODM":"Acceptable","Warranty":"12 month","Cycle Life":"1000 times","Battery Type":"POUCH CELLS","Protection":"Over-charge, Over-Discharge, Over-current, Short Circuit, High Temperature","Key Words 1":"2s 3.7 v lipo battery","Key Words 2":"2 cell lipo battery","Key Words 3":"custom lithium polymer battery","Charge Method":"CC\/CV","Battery Size":"56*47*69 MM","Battery Weight":"650 g","Certificate":"CE, UL, UN38.3, MSDS,IEC62133, KC,","Working Temperature":"-20\u2103 ~60\u2103","Discharge Current":"within 1C Rate","Storage Humidity":"65\u00b120% RH","Internal Impedance":"\u2264110m\u03a9","Charging Voltage":"4.25 Volt","Cut-off Voltage":"2.75 Volt"}}