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Electric Motorcycle Lithium Battery

Advantages of electric motorcycle lithium -ion batteries:


1. Light weight and small volume: The volume and weight of electric motorcycle lithium -ion batteries are 2/3 and 1/3 of lead -acid batteries, respectively. The capacity is higher, which makes the electric motorcycle lighter and the battery life is increased by about 30%.


2. Long life: The average life of electric motorcycle lithium -ion batteries is about 5 years, and the charging and discharge of more than 800 times.


3. Good charging and charge -resistant discharge capacity: The electric motorcycle lithium -ion battery can sustainly charging for 48 hours without expansion and leakage rupture at normal temperature, and the capacity remains above 95%. Fast charging and discharge can be performed under the dedicated charger.


4Electric motorcycle, tourist car, lithium battery customization.


5. If you are interested in becoming our dealer/distributor/agent, please contact us and we look forward to working with you to make clean energy available to every place on the earth.

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5.0 /5 Very satisfied

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1.1 Reference standard

No.

Standard

Description

1

GB /T 36972-2018

Lithium-ion batteries for electric motorcycle

2

GB/T 4208-2008

Enclosure protection class (IP code)


2. Product Functional Features

2.1   Overvoltage protection

When the BMS detects that the voltage of any battery cell exceeds the "over-voltage protection value", it will cause the charging circuit to be cut off. Once over-voltage protection occurs, the voltage of all battery cells must fall below the "over-voltage protection release value" to release the over-voltage protection state and re-activate the charging function.

2.2   Undervoltage protection

When the BMS detects that the voltage of any cell is lower than the "undervoltage protection value", it will cause the discharge circuit to be cut off. Once undervoltage protection occurs, it can be canceled under the following two conditions:

The load is disconnected, the minimum voltage of the cell is higher than the undervoltage release value of the cell, and the load is detected to be disconnected.

The minimum voltage of the cell is higher than the cell undervoltage protection value and charging current is detected.

2.3   Charge overcurrent protection

When the BMS detects that the charging current is greater than the "charging overcurrent value", it will shut down the charging circuit and disable the charging function. Once the overcurrent protection is triggered, the charger must be kept disconnected for 3 seconds before the overcurrent protection is released and the charging function is resumed.

2.4   Overload protection

When the BMS detects that the discharge current is greater than the "overload protection value", it will shut down the discharge circuit and disable the discharge output. Once the overload protection is activated, the overload protection can only be released and the discharge function can be resumed after keeping the load disconnected for 3 seconds.

2.5   Short-circuit protection and recovery

When the BMS hardware circuit detects short circuit in the positive and negative terminals of the battery pack output, it will immediately shut down the discharge circuit and prohibit the output. Once short-circuit protection occurs, the short-circuit protection can only be released and the discharge function can be resumed after keeping the load disconnected for 3 seconds.

2.6   Over-temperature protection and recovery

When the BMS detects that the temperature of any group of temperature sensors exceeds the "over-temperature protection value", the BMS will shut down the charging and discharging circuits of the battery pack. Once the over-temperature protection occurs, the BMS needs to detect that the temperatures of all the temperature sensors are below the "over-temperature release value" before allowing the charging and discharging functions again.

2.7   Temperature difference protection and recovery

When the BMS detects that the temperature difference between two groups of temperature sensors exceeds the "temperature difference protection value", the BMS will shut down the charging and discharging circuits of the battery pack. Once the temperature difference protection occurs, the BMS needs to detect that the temperature difference of all the temperature sensors is lower than the "temperature difference protection value" before allowing the charging and discharging function again.

2.8   Low temperature protection during charging

When the BMS detects that the temperature of any of the temperature sensor is below the "Charge low temperature protection value", the BMS will close the charging circuit of the battery pack. Once the charge low temperature protection occurs, the BMS needs to detect that the temperature of all temperature sensor is higher than the "charge low temperature release value" before re-allowing the charging function.

2.9   Low temperature protection in the discharged state

When the BMS detects that the temperature of any of the temperature sensors is lower than the "discharge low temperature protection value", the BMS will close the discharge circuit of the battery pack. Once discharge low temperature protection occurs, the BMS needs to detect that the temperature of all the temperature sensors is above the "discharge low temperature release value" before allowing the discharge function again.

2.10 SOC Analysis

During charging or discharging, the BMS monitors the current and voltage to adjust the SOC information in real time. The process is based on the 1*t integration method, supplemented by a learning function.

2.11 RS485 communication

Communication command could view BMS monitoring data and battery pack status.


3.Battery operating environment


No.

Item

Requirement

Note

1

Working   environment temperature

 

-20℃~+65℃

Best use temperature:   15℃~35℃

2

Storage   Ambient Temperature

-20℃~+65℃

/

3

Working   environment humidity

 

≤95%

best use   of relative humidity: ≤

75%

4

Working   altitude requirements

≤4000M


 

4.Battery performance parameter

No.

Items

Technical   Parameters

Note

1

Battery   Type

Ternary   lithium battery


2

Storage   Ambient Temperature

 

-20℃~+65℃

Optimum   temperature 25±2°C

3

Working   environment temperature

System   -20℃~+65℃  

Battery   charging: 0℃

~+65℃

Battery   Discharge: -20℃

~+65℃

 

 

Charging:   0℃~+55℃

4

Relative   humidity of working environment

 

≤95%

The best   use of relative humidity: ≤ 75%

5

Nominal   capacity

 

50Ah

Other   capacity customizable

6

Minimum   capacity

 

49.8Ah

Other   capacity customizable

7

Battery   grouping

14S11P

/

8

Nominal   voltage

 

76.8V(Other voltage customizable)

Nominal   voltage of battery cell: 3.2V

9

Operating   voltage range

 

60V~87.6V(@≥0℃)

Cell   voltage range: 2.5V~3.65V (@≥0℃)

10

SOC   operating range

0%~100%


11

Maximum   discharge sustainable current

 

50A

 

BOL@25℃

12

Short-term   peak discharge current

60A

2S@25℃,50%SOC

13

Maximum continuous charging current

 

50A

 

BOL@25℃,0%~60%S0C

14

Maximum charge limit

voltage

58.8V (Other voltage customizable)


15

PACK design cycle life

800 times@70%SOH


16

Thermal management mode

Natural cooling


17

IP protection level

Battery box IP65


18

Weight

14KG


29

Shell material

Stainless Steel, Baked

Enamel Black Sandpaper



Electric Motorcycle Lithium Battery

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