LiFePO4 Battery BMS PCB Protection 4S 12V 350A Li Ion Battery BMS 3.2V For EV Ebike Scooter
LiFePO4 Battery BMS Description:
The lithium iron phosphate battery is a lithium-ion battery using lithium iron phosphate (LiFePO4) as the positive electrode material and carbon as the negative electrode material.
LiFePO4 batteries have the advantages of high working voltage, high energy density, long cycle life, good safety performance, low self-discharge rate and no memory effect.
Why we need the BMS board for the battery ?
1.Battery protection board, as the name implies, lithium battery protection board is mainly an integrated circuit board that protects rechargeable (usually lithium batteries).
2.The reason why lithium battery (rechargeable type) needs protection is
3.determined by its own characteristics. Because the material of the lithium battery itself determines that it cannot be
4.overcharged, over-discharged, over-current, short-circuited, and ultra-high temperature charging and discharging,
The three basic functions of the lithium battery protection board are
short-circuit protection, Overcharge protection and over-discharge protection.
Everyone can understand the significance of the BMS board to the lithium battery.
Product Description
|
|
Content
|
Specification
|
Unit
|
Remark
|
|
Discharge
|
Continuous Discharge current
|
350
|
A
|
|
|
Pluse Discharge Current
|
1000±50
|
A
|
|
|
Charge
|
Charge cut-off voltage
|
14.8
|
V
|
|
|
Max charge current
|
200(MAX)
|
A
|
|
|
Over Charge protection
|
Overcharge detection voltage
|
3.75±0.05
|
V
|
|
|
Overcharge detection delay time
|
1000±200
|
MS
|
|
|
Overcharge release voltage
|
3.55±0.05
|
V
|
|
|
Balance Portection
|
Balance Detection voltage
|
3.5
|
V
|
|
|
Balance release detection voltage
|
3.5
|
V
|
|
|
Balance current
|
40±0.05
|
mA
|
|
|
Overdischarge Portection
|
Overdischarge detection voltage
|
2.2±0.05
|
V
|
|
|
Overdischarge detection delay time
|
1000±200
|
MS
|
|
|
Overdischarge release voltage
|
2.7±0.05
|
V
|
|
|
Overcurrent Portection
|
|
|
|
|
|
Overcurrent protection current
|
1000±50
|
A
|
|
|
Overcurrent detection delay time
|
600±300
|
MS
|
can set as per your request
|
|
Release condition
|
Cut short load
|
|
|
|
Short Protection
|
Detection condition
|
Out load short cycles
|
|
|
|
Detection delay time
|
500±150
|
uS
|
|
|
Release condition
|
Cut load
|
|
|
|
MOS Temp. protection
|
Over Charge protection temp.
|
85
|
℃
|
can set as per your request
|
|
Over Disharge protection temp.
|
85
|
℃
|
|
|
Battery high temperature protection
|
Charging protection temp.
|
55
|
℃
|
|
|
Discharging protection temp.
|
75
|
℃
|
|
|
Battery low temperature protection
|
Charging protection temp.
|
-20
|
℃
|
|
|
Discharging protection temp.
|
-40
|
℃
|
|
|
Interior resistance
|
Main loop electrify resistance
|
≤30
|
mΩ
|
|
|
Current consumption
|
Current consume in normal operation
|
≤100
|
uA
|
|
|
|
Sleep current(over discharge)
|
≤20
|
uA
|
|
|
Working Temp.
|
Temp.range
|
-20/+50
|
℃
|
|
![]()
![]()
Product Usage
![]()
Our Services:
1. We offer We provide customers with one-stop procurement services.
2. Here you can find all the main accessories related to lithium batteries.
3. Save time and energy for customers.
How to choose the right BMS board?
1. Determine your battery type (ternary/NCM, iron lithium/LFP, lithium titanate/LTO) and determine the number of strings and
parallels of the battery pack. Choose according to the number of series
2. Determine whether the battery pack is charged and discharged in the same port or in separate ports.
The same port is the same line for charging and discharging, But the separate port one is for
charging and discharging thought independent lines
3. Determine the current value required by the protection board: I=P/U. That is,current=power/voltage. .
Remember this is only a theoretical value. In reality. We use this theoretical value as a reference.
Taking into account the load, the uphill and the environment just started,Generally the two-wheel electric vehicles choose more
than 2 times this theoretical value. Three-wheeled electric vehicles choose more than 3 times this theoretical value. Four-wheel
low-speed vehicles generally have about 3.5 times. For inverters and energy storage products, 1.2 times is enough.
Or refer to the current limit of the electric vehicle controller. Guarantee. The current value of the guard plate must be greater
than the control current limit value.
