Features: Battery Model 4820 Voltage 48V Capacity: 20AH Type: 3.7v 3C18650 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 Peak Discharge Current 100Amp 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 80*150*360MM Fit moto power Less1400w 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 Applications: E-Bike, Electric Bike, E-Scooter, Electric Scooter ! (Suitable Wattage of Motor: from 250 Watt to 1400 Watt suggested.) Package included: 1.48v 20ah rear rack Lithium Battery 2.48v 750w 8fun/bafang motor crank kits 3. 54.6v 2.0a Charger :With EU/US/UK/AU Adapter you can choose Bafang BBS02 48V 750W Ebike Motor with C965 LCD 8FUN mid drive Electric Bike conversion kits Motor Specification Motor BrandBafang / 8Fun Model numberBBS02 Voltage 48V Power 750W Current Limit 25A Motor Type Brushless Controller Built in LCD display C965 BB Length 68mm Weight 4.2kg Working Temperature -20~80°C Waterproof Grade IP65 Newest Bafang (8fun) HalloMotor Brushless Geared Mid-Drive Motor Conversion Kits, controller integrated, If you want to know how you can spend a lot of money on an electric bike and get the ultimate in efficiency and performance this is a good start. MID drives are not the easiest or the cheapest electric bikes to build, but can be the cream of the crop once you are out riding, especially off road, especially climbing hills or even mountains...... 48V 750W BBS02 Bafang Central Motor include: 1. 750W BBS02 Bafang Central MotorMotor with integrated controller 2. 46T chainwheel and pedal arms (does not include pedals).(If you need other chainwheel,such as 44T/48T/52T,pls tell us before paying) 3. Waterproof interconnecting cabling 4.Thumb throttle 5. Pair of ebrakes for cable pull brakes 6.LCD display (C965) including power switch Spec: 1. Voltage: 48V current Limit:25A 2. Power: 750W 3. Motor Weight: 4.2kg 4. BB Length: 68mm (Suitable for 68mm or length BB Bike Modification) 5. Working Temperature of Dsplay: - 20- 80 6. Waterproof Grade: IP65 How do i know if the mid drive conversion kits will fit my bike ? The Mid Drive Kits are designed to fit bikes with a 68mm (2.68 in.) or wide bottom bracket shell and 35mm inside diameter. This encompasses the vast majority of bikes excluding some newer high end bikes with an Integrated Bottom Bracket, and Fat tire Bikes with a 100mm wide bottom bracket shell Do not immerse the battery in water or seawater, and keep 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 1. Cells -A grade cellsto make sure batteries inhigh 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 tomake battery more stable. 4. Certifications : CE,UL,FCC, RoHS, ISO9001 5. Long life cycle, No memory, environment friendly. Our BMS consists of Master BMS Circuitry (we named “BMU”), Slave BMS Circuitry (we integrate itinto our battery module) and contactor.Besides the basic functions such as over charge/ discharge,over current, short circuit, overtemperature and balancing, Our BMS owns the following features, 1. Master-Slave architecture makesthe 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; 1. High energy density 2. High working voltage for single battery cells 3. Pollution-free, environment friendly 4. Long cycle life; It extends its cycle life up to 800 cycles 5. Capacity, resistance, Voltage, platform time consistency is good 6. Simplifying battery management system (BMS) and a battery charger 7. With short-circuit production function, safe and reliable 8. Factory price & High quality 9. Fast charging 10. Light weight, small size 11. Large overcharge tolerance and safe performance 12. Self balance 1.Light electricvehicles: such as electric bicycle, golf car, small-scale electric flat car, forklift, cleanness car, electric wheelchairs 2. Large-scale electric vehicles: such as bus, electric car, tourist car and commix car 3. Electric tool: electric drill, electric saw, lawn mower 4. Remote control cars, boat, aircraft, toys, 5. Solar and wind power generation energy storage devices 6. UPS emergency lights, warning lights and miners lamp 7. Small medical equipment and portable equipment 8.Widely used for Electric bicycle,golf car,electric wheelchair,power tools,scooter, UPS,Solar&Wind energy storage system,EV,etc. Experience We have more than 10years experience in producing Nicd&NiMH&Lithium battery cell and pack,7years of experience to manufacture Lithum ion battery,the factory passed ISO 9001:2008 certification. Strict process management and control Each process for making battery were under strict management and control,all of the battery wereunder full inspection before delivery. After-sales service Support prompt shipment and sample quality products,track the cargo in time after delivery.More than one year Guarantee,there are safety and operating instructions for your reference. Quick response to clients' enquiries within 12hrs Tailor-made solution provided by our experienced team and professional engineers for lithium polymer battery More than 10 years experience in producing battery products for various application. Value quality and long-term cooperation to reach win-win relationship. 
