4v 29v lithium cell for digital equipment

{"cid":"91224775","title":"OEM Lithium Battery 4V-29V Wide Capacity Range, Custom Color Plug For Multiple Electronic Equipment","imgUrl":"https:\/\/img.chinax.com\/nimg\/b0\/e4\/cf3fa223492819651d2ad58a881c-200x200-1.jpg","attrs":{"Price":"Real-time quote","Brand Name":"ARS","Model Number":"Customized battery pack","Minimum Order Quantity":"Negotiable","Delivery Time":"7-20 Work Days","Certification":"CE\/MSDS\/UN38.3","Place of Origin":"Guangdong, China","Payment Terms":"T\/T,Western Union","Supply Ability":"10000 sets of batteries can be produced within 30 days","Packaging Details":"carton packaging\/Negotiable","Type":"Customized lithium battery","Nominal Voltage (V)":"3.7V 12V 24V 36V 48V 60V 72V, Etc.","Rated Capacity":"2.6Ah\/5Ah\/10Ah\/30Ah\/50Ah\/80Ah\/100Ah\/150Ah\/200Ah, Etc.","Battery cells":"18650 21700 26650 32700 ternary lithium batteries, LiFePO4, Polymer lithium batteries, etc.","Color":"Negotiable","Size":"Negotiable","OEM\/ODM":"Acceptable","Application":"Electric bicycles, electric motorcycles, electric forklifts, electric yachts, electric tools, electric wheelchairs, etc.","Cycle life":"500-2000 Times","Packaging Detail":"Standard carton packaging","Place of origin":"Foshan, China","Operating Temperature(\u2103)":"-20~55\u2103","Charging port":"Negotiable"}}

{"cid":"91201938","title":"Small BMS Active Balance , Positive 7.4V 3A Lipo Battery BMS","imgUrl":"https:\/\/img.chinax.com\/nimg\/55\/93\/f2127ce9b5d2cdc047f99c625eb6-200x200-1.jpg","attrs":{"Price":"To be negotiated","Brand Name":"","Model Number":"7.4V Positive Active Balance BMS","Minimum Order Quantity":"1pc","Delivery Time":"To be negotiated","Certification":"CE,FCC,RoHS,UN38.3,MSDS","Place of Origin":"China","Payment Terms":"T\/T, Western Union, MoneyGram","Supply Ability":"100000pcs\/month","Packaging Details":"Packed in export carton Box","cells in series:":"2S","Balance current:":"42mA","Balance Voltage:":"4.2V","Voltage:":"7.4 V","Pcb Size:":"L50*W8*T2.5mm","Function:":"Battery Protection Board"}}