3 7v 7 4v battery for beauty device

{"cid":"91220258","title":"Wholesale 7.4V 1800mAh Polymer Battery Pack For Beauty Devices, KC Certified 3.7V Li-Polymer Rechargeable Battery Model 103450","imgUrl":"https:\/\/img.ismap.com\/nimg\/80\/e1\/0bf5e20d9806fe899f24b4f62148-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"AUK","Model Number":"103450","Minimum Order Quantity":"100PCS","Delivery Time":"5-8 Work Days","Certification":"MSDS","Place of Origin":"China","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"10000pcs\/day","Packaging Details":"Carton box","Battery Type":"Li-polymer","Capacity":"1800mAh","Certifications":"MSDS","Charge Rate":"1C","Connector Type":"JST","Fully Charged Voltage":"7.4V","Quality":"No leakage & No rusted"}}

{"cid":"91222697","title":"Lithium Polymer Battery Cell 503040 600mAh 3.7V 7.4V 2.22wh For Portable Beauty Device","imgUrl":"https:\/\/img.ismap.com\/nimg\/36\/b1\/734faba4a3b8a47e3a0ebd89f965-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"RESKY","Model Number":"LP503040","Minimum Order Quantity":"10pcs","Delivery Time":"7-10days","Certification":"CE, RoHS, MSDS, Un38.3","Place of Origin":"China","Payment Terms":"Western Union,T\/T","Supply Ability":"50000pcs\/day","Packaging Details":"Paper box","Model NO.":"LP503040","Nominal Capacity":"600mAh","Charging Current":"0.2c","Continuous Discharging Current":"0.5c","Max Discharging Current":"1c","Weight":"11g","MOQ":"10PCS","Lead Time":"3-7workdays","Connector":"Jst, Molex....","Specification":"5*30*40mm"}}