48V Rear Rack Lithium Battery E-Bike Battery Pack 48V 20ah with 2 Year Warranty

• Customization: Available
• Type: Lithium-Ion Battery Pack
• Connection Mode: Series and Parallel
• Model NO.: BBG4820
• Rechargeable: Chargeable
• Discharge Rate: Medium Discharge Rate
• Size: 82*150*360mm (H*W*L)
• Accessories Type: Chargers
• Rated Capacity: 20ah
• Standard Voltage: 48V
• Usage: Electric Bike/Tricycle/Golf Car
• Electrolyte: Lithium-Ion
• Model: 48V 20ah Lithium Rechargeable Battery
• Battery Cell: 18650 3.7V 2200mAh Battery Cell
• Configuration: 13s9p
• Charger: 54.6V-4A Aluminum Charger
• Continuous Discharge Current: 30A
• Peak Discharge Current: 100A
• Motor Power: 350-1000W
• Application: Electric Bike/Scooter
• Warranty: 2 Years
• Certification: Ce, RoHS, MSDS
• Transport Package: 1PC/Carton
• Specification: CE, RoHS, UN38.3
• Trademark: BBG
• Origin: Shenzhen
• HS Code: 8507600001
• Production Capacity: 10000PCS/Month

Product Description

Product Description

Black rear rack type lithium battery 48V 20Ah rechargeable electric bike li-ion battery 48v ebike battery pack lifepo4 battery 

Features
Model: 48V 20Ah rear rack lithium-ion battery
Cell: 18650 3.7V 2200mAh cell.
Configuration: 13S9P
Nominal Voltage: 48V
Nominal Capacity: 20Ah
Size: 82*150*360mm (H*W*L)
Net Weight: Approx 7kg 
BMS: Custom BMS with 30A continuous discharging current and 100A peak current. 
Customization: 36/48V 10-30Ah rear rack type battery pack are all available to us with different cells like Samsung INR18650-29E 2900mah cells or Panasonic NCR18650B 3400mah cells etc.

BMS
The BMS provides protection against overcharge, and short circuit, through monitoring
single string of cells. Also it enables every battery pack to obtain independent balancing function.
 
Storage and Transportation
(1)Based on the characters of cells, proper environment for transportation of battery pack need to be created to protect the battery.
(2)During transportation,50% SOC must be kept to ensure that short circuit, appearance of liquid in the battery or immersion of battery in liquid never occur.
(3)Battery should be kept at -20ºC~45ºC in warehouse where it is dry, clean and well-ventilated.
(4)During loading of battery, attention must be paid against dropping, turning over and serious stacking.
 
Specific Details 

Item		Parameters	Remark
Typical Capacity		20Ah	25ºC,1 C5A discharge
Nominal Voltage		48V	25ºC,Average Voltage at 0.2 C5A discharge
Charge input voltage		110-240V AC	Wide voltage
Charge current		4A	Working temperature:0~35ºC
Charge cut-off voltage		54.6V	CC/CV
Charge time		4-6h
Working current		30A
Max working current(15S)		80A
Peak Working Current(2S)		100A	Working temperature:0~35ºC
Over charge protection		4.2±0.05V	Single cell
Over discharge protection		2.75±0.05V	Single cell
Size (H*W*L)		82*150*360mm
Weight		≤ 7kg
Storage temperature		≤3month	Best 20±5ºC for long-time storage
Storage humidity	≤3month	0~30ºC	Best storage temperature:20±5ºC Charge battery  every 3 month
	≤6month	20±5ºC
	65±20%RH	20±5ºC

 
We supply batteries types such as water bottle battery, rear rack battery, silver fish type battery, frog battery, downtube battery, 24/36/48V normal series, we also accept customized battery packs, domestic cell or imported cells are all available. If you are interested, welcome to send your inquiry.


Key Application
Widely applied in  Electric Bicycle, Electric vehicle, Electric Tricycle, Electric scooter, Electric golf trolley, Electric car, Electric wheelchairs,two wheel vehicles and etc.
 
Payment Terms
1.We accept bank transfer(T/T) , Western Union, MoneyGram, PayPal and Cash.
2.If you prefer other payment method,please contact us by email.

Shipping Terms
1.Samples order: sending by Express ( DHL/ UPS/ FEDEX/ TNT )
2.Bulk order: sending out by air/express/sea.

Warranty Instructions
1.All the battery we provide have 2 years warranty and the battery testing report will be sent to you before shipping. 
2.Warranty code: quality problems, defective goods can be fixed or replacement; Man-made damage, inflowing water, fault operation leading to short circuit or burning, damaged by carrier is out of our warranty.
3.Goods should be returned in original condition to qualify for a replacement or repair.

Advantages
1.OEM&ODM manufacture, design any of special shape, dimension and other requirements battery packs
2.Good quality, competitive price, fast delivery, excellent service. 
3. Wonderful package, stable shipment, 100% testing and inspection before shipment to insure the quality. 
4.CE, ROHS, UN38.3, UL, MSDS certificates.
5. Quick action&response,every inquires will be relied within 24 hours.