kc 7 4 volt lithium ion battery

{"cid":"91199489","title":"2800mAh 3.7V KC IEC62133 Approved Rechargeable Lithium Polymer Battery for Hearing Aid","imgUrl":"https:\/\/img.chinax.com\/nimg\/79\/21\/748774eb12009996951a829ef9b1-200x200-1.jpg","attrs":{"Model Number":"104060","Minimum Order Quantity":"2000pieces","Delivery Time":"within 15days","Certification":"FCC CB CE KC","Place of Origin":"China","Payment Terms":"T\/T","Supply Ability":"50'000Pieces daily","Packaging Details":"Bulk packing","Battery Type":"Lipo battery pack","Voltage":"3.7V","Capacity":"2800mAh","Cycle life":"500times","Weight":"42g","Application":"Beauty device","Size":"10*40*62mm"}}

{"cid":"91222624","title":"High Power Fast Smart Lipo Lithium ion Li-ion Battery Charger 12S\/13S\/14S 60V 72V 48V 15A 20A 30A 35A 50A 900W Output Power","imgUrl":"https:\/\/img.chinax.com\/nimg\/24\/89\/3f83a6c5de7e0077089c142d5cce-200x200-1.jpg","attrs":{"Price":"CN\u00a5159.89\/pieces 10-499 pieces","Minimum Order Quantity":"10 pieces","type":"Electric, CAR CHARGER, Fast Charger","usage":"Universal\u00a0, Electric Tool, Motorcycle \/ Scooter","material":"PC Fireproof Material, ABS","protection":"Short Circuit Protection, ovp, OTP, OLP, ocp, Low Tension, Over-charging, Overcurrent, Overvoltage","function":"FCP, SCP, PD3.1","brand name":"LA-FAST","model number":"60-20A","port":"DC, AC","input":"100-240V\/0.15A, 100-240V\/0.6A","output":"12V\/2A, 12V\/1.5A","output power":"90W","place of origin":"China","Type":"Li-ion Battery Charger","Product name":"Universal Battery Charger","Application":"E-forklifts","Warranty":"12 Months","Output Voltage":"12V\/24V\/36V\/48V\/60V","Package":"Customized Package","Input Voltage":"AC100~240V 50\/60Hz","OEM\/ODM":"Accept OEM Orders","Charging efficiency":"93%(full Load)","Advantage":"Multi-Protection Safety Protection","Packaging Details":"CARTON BOX","Port":"SHANGHAI NINGBO YIWU GUANGZHOU","Supply Ability":"5000 Piece\/Pieces per Day"}}