Features: Battery Model 4820 Voltage 48V Capacity: 20AH Type: 3.7v3C Samsung 18650 cell Source Resistance 40 Charge Way of charge CC/CV Standard charge Current 2A Max charge current 5A Charge Cut-off Voltage 54.6V CellOvercharge protection Voltage 4.2V/CELL Discharge Continouns Discharge Current 30Amp can be customized Peak Discharge Current 100Ampcan be customized Cell Overdischarge Voltage 2.8v/cell Discharge Cut-off Voltage 36.4v Cycle Life 1000 times Safety test No firs ,No explosion Overcharge Safety Test Crush Safety test Needling safety test 130 C high Temperature safety test Weight 5.5kg Size 120*160*260mm Fit moto power Less 1440w (Suitable Wattage of Motor: from 250 Watt to 1000 Watt suggested.) Working Temperature 0C—45C -20C---65C Retention of charge >95% Certificate CE,UL,ROSH,UN38.3,MSDS Application E-bike,E-motorcycle,E-scooter Warranty One year Charger Parameters Applying Battery Type: Lithium Input Voltage (AC/V): 100 to 240V Output Current (A): 2 A Output Voltage (DC/V): 54.6V Charging Mode: CC/CV Type of DC Output Connector: PLUG Includes: Applications: E-Bike, Electric Bike, E-Scooter, Electric Scooter ! (Suitable Wattage of Motor: from 250 Watt to 1400 Watt suggested.) 48V 20AH 250w-1440W Lithium Battery with FrogCase,BMS and Charger: Parts included: 1. Lithium Battery with Frogcase 2. Built-in BMS board 3. Charger (54.6V 2.0A 50/60HZ 100-240vUS ,EU,UK ,AU PLUG) Good news ,Free customes taxes ,you dont pay any money ,so save more money the battery in a cool dry surrounding if it stands by. Does not use or leave the battery near a heat source as fire or heater Use the battery charger specifically for that purpose when recharging. Do not reverse the position and negative terminals. Do not connect the battery electrodes to an electrical outlet. Do not discard the battery in fire or a heater. Do not short-circuit the battery by directly connecting the positive and negative terminals with metal objects. Do not transport or store the battery together with metal objects such as hairpins, necklaces, etc. Do not strike, trample or throw the battery. Do not directly solder the battery and pierce the battery with a nail or other sharp objects Battery Quality: 1. Cells - A grade cells to make sure batteries in high and full capacity 2. Protection - Dual IC chips, that can anti-short circuit, anti-over charger, anti-over current, anti-overload 3. Compose Type : Injection Technology to make battery more stable. 4. Certifications : CE,UL,FCC, RoHS, ISO9001 5. Long life cycle, No memory, environment friendly. 1. Master-Slave architecture makes the system flexible; 2. Two level warning makes maintenance easier; 3. CAN2.0 and industrial level electronic components make system reliable; 4. Contactor makes high rate charge & discharge feasible; 5. Periodic insulation measurement makes personnel safety possible; 6. Host can control the system easily; Outstanding Performance of BMS 7 Self-Checking 8 Defect Alerting Function 9 Capacity (SOC) Calculating 10 High Voltage Leakage Warning 11 Charging and Discharging Management 12 Collection of Voltage, Current and Temperature 13 Over Current, Over Volt, Temperature Protection 14 Communication: display / car can bus communication, data transferring 1. Long life, large capacity and good shock resistance 2. Low self-discharge and good discharge performance at low temperature 3. Strong charging acceptance and quick-charging capability 4. Strong over-discharge resistance and charge retention 5. Maintenance-free and no acid or water for maintenance in usage 6. Most safe no explosion no fire 7. High temperature performance 8. Environmental friendly 9. Lighter weight smaller size 10. Excellent large current discharge performance, and have obvious advantages in startup and climbing Electric Propelling Applications 1 Engine Starting Battery 2 Commercial Bus and Transit: E-car, E-bus, Golf troller/car, E-bike, Scooter, RV, AGV, Marine, Tourist car, Caravan, Wheel chair, E-truck, E-sweeper, Floor cleaner, E-walker etc. 3 Intellectual Robots 4 Power tools: electric drills, toys Energy Storage 1Solar-Wind Power System 2 City Grid (On/Off) 3 Community and Family Back-up System and UPS Telcom Base, CATV system, Computer Server Center, Medical Instrumnt, Military Equipment Other Applications Security and Electronics, Mobile POS, Mining Lihgt / Torch / LED Light / Emergency Light Shenzhen E-bike Battery Factory established in 2008, headquarters in Goldman Sachs Technology Park, South of Dongguan City, Guangdong Province, China, is a national High-Tech Enterprise, which specializes in the design, production and sale of Lithium-ion battery modules. Since it was established, about 13-year, always insists on serving the global mobile power / backup power / energy storage power users, and has become a global leader of customized lithium schemes and products providers. (Global leader of customized lithium battery solutions and products provider) It has advanced custom development, manufacturing operating system with strong supply chain. Technical Centers of LARGE include Electronics, power, Structure, Process, Electrochemical technology center, in addition, LARGE has about 50 staff, and most of them are senior engineers with more than five years experiences in the lithium industry.Testing centers include safety laboratory, environmental laboratory, environmental laboratory, Power Laboratory and electrical properties laboratory, by which we can complete autonomy testing and certification of raw / auxiliary materials, spare parts and whole project of battery modules, besides testing technology meet international standards completely. LARGE based on application of advanced lithium technology, the corporation with Samsung, Sanyo, Seiko, BAK, the power of God, Industrial Development Institute of Tsinghua University, National Chemical Power Quality Inspection Center, develops core services competencies of customized lithium with professional manufacturing method of multiple series and parallel combinations of Lithium battery. It specializes in customized Lithium schemes and products which are applied widely to Military, medical, financial, communications, security, transportation, logistics, mining, consumer electronics and other fields, and makes a great contribution to the majority of users by the comprehensive long-term strategic partnership with Motorola, Foxconn, Fujitsu, Maxell, may Anluogelang, Midea, Changhong, Hisense, Skyworth. Based on open foresight, LARGE is continuing to deepen strategic cooperation around the world, facing the changes of users' personalizing, diversified and international needs, LARGE insists on the operating principle of “Develop by Demands, 8 Hour Response,24 Hour Door to Door,10 Year Maintenance”, provides customized Lithium schemes and products for users worldwide, and seek common development with Global customers and partners. Shipping times: To USA/UK it usually takes 3-5 days. To most other countries it usually takes 5-7 days. for more accurate information you can check eBay's shipping and payments tab on the top of the page. - Item will be usually shipped within 4 business days. - Item is shipped from CHINA. - Item will be shipped with a secure mail with a tracking number. - Any problem happens during the shipping (delays, lost package etc.) we give full insurance. 
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