48V 8.8-13.6ah Battery Waterproof Battery Case

• Customization: Available
• Type: Lithium-Ion Battery Pack
• Connection Mode: Series and Parallel
• Model NO.: BB-EBRC48V-3
• Rechargeable: Chargeable
• Discharge Rate: Medium Discharge Rate
• Size: Medium
• Accessories Type: Battery
• Rated Capacity: >1000MAH
• Standard Voltage: >12V
• Usage: E-Bike
• Electrolyte: Acid
• 48V Li-ion Packs: E-Bike
• Transport Package: 1PCS/Carton
• Specification: CE, RoHS, UN38.3
• Trademark: B-B
• Origin: Shenzhen
• HS Code: 8507600001
• Production Capacity: 50000PCS/Year

Product Description

48V8.8-13.6Ah battery waterproof battery case

30Amps high performance blade type discharge fuse
6Pins discharging plug with nickel-plating
Waterproof grade: IP65
52PCS 18650 Cylinder cells, capacity 36V10Ah-17Ah or 48V8AH-13.6AH
DC2.1 charging Port (optional 5Pin high current charging Plug)
1.Instruction of the Battery Pack Structure
(1)Battery modules
52 cells,4 parallel and 13 serial to make a battery module.
(2)Protective board
The protective board, provides protection against overcharge, and short circuit, through monitoring
single 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.
2.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.
 
3. Warnings and Tips
In order to prevent the battery leaking, getting hot and exploding, please pay attention to preventing
measure as following:
 Never throw the battery into water, keep it under dry, shady and cool circumstance when not use.
 Never upside down the positive and negative.
 Never connect the positive and negative of battery with metal.
 Never ship or store the battery together with metal
 Never knock, throw or trample the battery.
 Never cut through the battery with nail or other edge tool.
    Notices! 
 Never use or keep the battery under the high temperature. Otherwise it will cause battery heat, get into fire or lose some function and reduce the life. The proposed temperature for long-term storage is 10-45ºC.

NO	Item	General Parameter				Remark
1	Model	BB-EBRC48V-3
2	Standard capacity(0.5C)	8.8-13.6Ah
3	Rated voltage	48V
4	Max. charge voltage	54.6V				Single Ave. charge Voltage: 4.2V
5	Over charge protection	Over charge detection voltage		4.40±0.025V
		Over charge release voltage		4.3±0.025V
6	Standard charge current	3A				0.2C
7	Charging time	About 300 minutes				X C
8	Discharge cut-off voltage	36.4V				Single Ave. Discharge Voltage: 2.75V
9	Over discharge Protection	Over discharge detection voltage			2.5±0.05V
		Over discharge release voltage			2.75±0.05V
10	Max. continuous discharge current	15A(adjustable)				1.5C
11	Peak discharge current	45A(adjustable)				4.5C
12	Short circuit protection	Detetion delay time			XXμs	Release condition	Cut-off load
12	Battery dimension	390*148*55mm
13	Total weight(Approx.)	About 3.5kg
14	Operation temperature	Standard	0~45
		Discharge	-20~65
		Storage	-20~65

 

Rated voltage

48V