48V Rear Rack Type 18650 Battery Pack/Lithium Battery Pack

• Type: Lithium-Ion Battery Pack
• Connection Mode: Series and Parallel
• Rechargeable: Chargeable
• Discharge Rate: Medium Discharge Rate
• Size: Medium
• Accessories Type: Battery
• Model NO.: BB-EB48RR
• Rated Capacity: >1000MAH
• Standard Voltage: 48V
• Usage: E-Bike
• Electrolyte: Li-ion
• Application: E-Bike, E-Scooter
• Structure: Icr18650 13s
• Dimension: 144.8*56.7*270mm
• Cells: 78PCS 18650 in Total
• Transport Package: 1PCS/Carton
• Specification: CE, RoHS, UN38.3
• Trademark: BB
• Origin: Shenzhen
• HS Code: 8507600001
• Production Capacity: 50000PCS/Year

Product Description

48V Rear Rack Type 18650 Battery Pack/Lithium Battery Pack

Specification
 

Item		Parameters	Remark
Typical Capacity		10-13.20Ah	25ºC,1 C5A discharge
Nominal Voltage		48.0V	25ºC,Average Voltage at 0.2 C5A discharge
Charge input voltage		110-240V AC	Wide voltage
Charge current		2-5A	Working temperature:0~35ºC
Charge cut-off voltage		35.75V	CC/CV
Charge time		2.5-5h
Working current		10-15A
Max working current		30-45A
Working temperature		0~35ºC
Over charge protection		4.2±0.05V	Single cell
Over discharge protection		2.75±0.05V	Single cell
Balance current		60mA	Balance active voltage 4.175V
Weight		≤ 5kg
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

 
 
Dimension
Cavity size :144.8*56.7*270mm
External Dimension
Appearance size:435*160*60mm
Product features:Shelf type large capacity Length of aluminum shell can be self integral controller box
Recommended to install the electric core number:18650 78PCS

Instruction of the Battery Pack Structure
(1)Battery modules
78 cells, 6 parallel and 13 serial to make a battery module.

(2)Protective board
The protective board, provides protection against overcharge, and short circuit, through monitoringsingle string of cells. Also it enables every battery pack to obtain independent balancing function
 
(3)Charge/discharge standards for cell
 Cell adopted:  ICR3.7V2200mAh 
 Constant charge current: 0.2 C5A -1 C3A is the best. cell max voltage<4.3V.
 Constant discharge current: single cell min voltage> 2.75V
 Rapid charge capability: Max. charge current1C3A;temperature increase falls within 15°C is
normal while over 15°C will affect the cycle life of cell.