8S 24V 80A 100A 120A Lifepo4 BMS Battery Management System For Lead Acid Battery
This BMS is designed for battery packs for the inverter, electric bicycles and the electric motorcycles It can be applied to
lithium batteries with different chemical properties, such as lithium ion, Li-polymer. Lithium iron phosphate, etc. The protection
board has strong loading capacity and the maximum continuous discharge current can reach 80A 100A 120A.
● 4~24 cell series protection
● Various protection functions for charging and discharging
● Discharge overcurrent, short circuit protection functional processes of hardware
● reserves the discharging control switch and the position of discharging temperature protection,
● Very low static current consumption
● Containing charging equalization function
| Functions | Test items | specification |
Unit
|
| Min. | Type | Max. |
|
Operating current
| recharging current | - | - | 100 | A |
| Discharging current | - | - | 100 | A |
|
Charging protection
| Charger voltage (CC-CV) lifepo4 | Battery series *3.6 | V |
| Charger voltage (CC-CV) Li-ion | Battery series *4.2 | V |
| Over-charge protection voltage lifepo4 | 3.600 | 3.650 | 3.700 | V |
| Over-charge protection voltage Li-ion | 4.220 | 4.250 | 4.280 | V |
| Over-charge protection delay time | 500 | 1000 | 1500 | mS |
| Over-charge protection recovery voltage lifepo4 | 3.400 | 3.450 | 3.500 | V |
| Over-charge protection recovery voltage Li-ion | 4.140 | 4.180 | 4.230 | V |
|
Discharge protection
| Over-discharge protection voltage lifepo4 | 2.400 | 2.500 | 2.600 | V |
| Over-discharge protection voltage Li-ion | 2.700 | 2.800 | 2.900 | V |
| Over-discharge protection delay time | 50 | 100 | 200 | V |
| Over-discharge protection recovery voltage lifepo4 | 2.900 | 3.000 | 3.100 | V |
| Over-discharge protection recovery voltage Li-ion | 2.800 | 2.900 | 3.000 | V |
| Over-discharge protection recovery condition | Disconnect load or Charging activation |
|
Overcurrent protection
| Charging overcurrent protection value | _ | _ | _ | A |
| Charging overcurrent delay | _ | _ | _ | mS |
| Charging release adjustment | _ |
| Discharge overcurrent 1 protection current value | 320 | 360 | 400 | A |
| Discharge overcurrent 1 protection delay | 50 | 100 | 200 | mS |
| Discharge overcurrent protection recovery condition | Disconnect load or Charging activation |
| Short circuit protection | Short circuit protection delay time | 100 | 200 | 300 | uS |
| Short circuit protection recovery | Disconnect load |
|
Balanced function
| Balanced turn-on voltage lifepo4 | 3.400 | 3.450 | 3.500 | V |
| Balanced turn-on voltage li-ion | 4.170 | 4.190 | 4.220 | V |
| Balanced current | 20 | | 30 | mA |
| Temperature
protection(internally installed) | temperature protection value | _ | 75 | _ | ℃ |
| temperature protection release value | _ | 53 | _ | ℃ |
| Internal resistance | Discharge loop internal resistance | _ | 10 | 20 | mR |
| Self-consuming | Operating mode | _ | 20 | 50 | uA |
| Working humidity | Normal operating range | -20 | _ | 70 | ℃ |
| Storage temperature | Humidity<90%, No condensation | -40 | _ | 85 | ℃ |
| Protection board size | L*W*H | 150*102*16 | mm |
Protection function description
Overcharge protection: When the battery is under the charging state, the voltage keeps going up. When the protection board detects that the voltage of any cell is higher than the overcharge protection value, the protection board will start timing immediately. When the time reaches the overcharge protection delay, the protection board will turn off the charging MOS tube, at that time, it cannot be charged.
Overcharge protection recovery
After the overvoltage protection appears on the protection board, the battery voltage will going down under the static or discharge state of the battery. When the protection board detects that each voltage is lower than the recovery voltage of the overcharge protection, the protection board will output a signal and turn on the charging MOS tube to charge.
Over-discharge protection
When the battery is under the discharge state, the voltage keeps going down. When the protection board detects that the voltage of any cell is lower than the overcharge protection value, the protection board will start timing immediately. When the time reaches the over discharge protection delay, the output signal of the protection board will turn off the discharge MOS tube, the load lock circuit will work, but, it cannot discharge at this time. Over discharge protection recovery: After the over discharge protection appears on the protection board, the battery voltage will going up under the static or discharge state of the battery. When the protection board detects that each voltage is higher than
the recovery voltage of the over discharge protection. At this time, disconnect the load or charge, the protection board will output a signal and turn on the charging MOS tube to charge.
Overcurrent protection
When the battery is under the static or discharge state, the current suddenly increases. When the protection board detects that the current reaches the overcurrent protection value, the protection board will start timing at that time. When the current duration in the circuit reaches the overcurrent protection delay time, the output signal of the protection board will turn off the discharge MOS tube, and the load lock circuit will work. At this time, the discharge cannot be conducted.
Overcurrent protection recovery
After the discharge overcurrent protection appears on the protection board, the discharge MOS tube is turned off, and the current in the loop becomes 0. At this time, the load is disconnected or charged, the output signal of the protection board will turn on the discharge MOS tube to discharge.
Shenzhen XUWEN Technology Co.,Ltd
Shenzhen XUWEN Technology Co.,Ltd is a comprehensive technology
company specializing in the research, development, production and
sales of various lithium-ion battery packs, lithium battery
protection management systems, lithium battery testing equipment .
Specializing in the production of power, energy storage, digital
and other lithium batteries, lithium iron phosphate battery
protection boards.
The company adheres to the principle of "mutual benefit and common
development", and welcomes business negotiations and cooperative
development. Product introduction: power battery protection board
With equalization and temperature control. High-quality MOS tube
protection current. Same port installation, simple and convenient.
Intelligent software protection board With
CAN/RS485/RS232/RS232/RS422/USART/GPS positioning communication.
Can be customized according to customer requirements. Our products
are strictly tested in the laboratory. All data comply with CE,
FCC, RoHS, ISO certification.
