• Product Name: BMS24T for 2S to 24S lifepo4,lithium titanate battery,lithium-ion,lipolymer battery pack
  • Subtitle:
  • BMS24T is designed special for LiPo,LiFe and LiTo battery pack applied to storage energy system and Electrical Vehicle including E-Motorcycle, E-Scooter and so on.It is fit 3S-24S 100A-600A continuous discharge lifepo4&lithium-ion battery packs(Cover battery brands:Winston,CALB,Sinopoly,E&J technology,Sanyo,Panasonic,Lishen,BYD,LG,Sony,Samsung,etc..)


BMS24T is designed special for LiPo,LiFe and LiTo battery pack applied to storage energy system and
Electrical Vehicle including E-Motorcycle, E-Scooter and so on. The unit can measure or detect the battery voltage,
cell voltage, charge & discharge current, battery temperature, and battery SOC (State of Charge) , displayed with

TFT color LCD.

1. Press SET/START button for 3 seconds enter into Program Setup interface.
2. Press UP or DOWN button select the item, press SET/START shortly make the value flash, and press UP or
DOWN change the value. Press SET/START button shortly confirm the change. After finish all setup, press
SET/START for 3 seconds quit the setup menu.
3. When quit setup mode, BMS24T will record all parameters till next change.

Special Features
1. The BMS24T uses advanced ADC measurement technology, high accuracy, high voltage and high current
detection circuit. The maximum voltage measurements tolerance is within 5mV at up to 24S LiPo battery
2. Support regenerative braking, during braking operation can charge the batter pack and the discharge power
(Wh) will decrease to response to the braking power.
3. Charge/discharge current up to 600A. Bigger current can be customized.
4. 1.2A per cell balance current is very useful for large capacity battery pack, the feature can resume all cell
voltage balance status at the shortest time. Over temperature protection make sure the system safety
during balance.
5. BMS24T calculate and display the charge and discharge power (Wh), generally the battery rated power is
rated voltage multiply rated battery capacity.
6. TFT LCD screen provides rich information including current, voltage, power, capacity, battery status, SOC
and temperature and so on.
7. BMS24T features a maximal safety protection, within the range parameters can be setup, BMS24T will alarm
and cutoff charge or discharge according to users’ setup, out of range of parameters, and trigged absolute
maximum ratings BMS24T will force to cutoff charge or discharge to prevent the battery from fire.
8. Minimize the power consumption by draw current from all cells or external power supply.
9. Dual power design, the unit can be powered by all cells or external power supply.
10. Detect cell count at any time, and compare with the count detected when switch on first time. If it is not
uniformity, the device will alarm and cutoff charge or discharge according to users’ setup, the feature can
prevent any cell connection from loosing.
11. Sound alarm and LED alarm will be triggered when any warning events happened, and then wait several
seconds cut off or Don't cut off charge or discharge. The delay time can be programmed.
12. Charge relay and discharge relay are controlled independently.
13. Two temperature sensors monitor battery temperature on different position.
14. Supports upgrading the firmware program by USB port.
15. BMS24T provide users the maximal flexibility, key parameters can be programmed.
16. BMS24T display battery SOC or called battery gauge similar with car dashboard. Cell count, battery pack
voltage and battery gauge (%) is displayed simultaneously.
17. In case that the battery pack need not be charged and discharged, Press STOP button enter into sleep mode
to save energy consumption, at this mode, Charge and Discharge is forbidden, and LCD back light is off.
Press any key to resume normal work mode.

18. LCD back light ON time can be programmed to save energy, when it is OFF, press any key to resume “ON”.

Protection functions
1. Cell count error protection
2. Over charge protection
3. Under voltage protection
4. Over current protection when charge or discharge
5. Over temperature protection
6. Over differential cell voltage protection
7. Over differential battery temperature protection
8. Under SOC protection

1. Battery range: 2S-24S LiPo & LiFe battery pack
2. Accurate scope of the cell voltage: -8mV/+8mV
3. Cell Voltage display range: 0.10~4.99V
4. The voltage of external power15-60V
5. Balance current:1.2A per cell
6. Temperature display range:-20~150,
7. SOC indicator:
RED area @ 0~15% of SOC
YELLOW area @ 16~35% of SOC
GREEN area @ 36~100% of SOC
8. Main module Size: 128⊙114⊙33 (L⊙W⊙T, mm) or 5.1⊙4.5⊙1.3 (L⊙W⊙T, inch)
9. Display module size:96⊙80⊙24 (L⊙W⊙T, mm) or 3.8⊙3.2⊙0.95 (L⊙W⊙T, inch)
10. Warning LED: 11000mCd, @ 2.0V, 20mA
11. Warning beeper: 85dB @ 12V, 25mA
12. Package: AL alloy case

1. Always on means the LCD back-light will be ON forever.
2. NO means BMS24T will not cut off charge or discharge but alarm by LED flash and Beeper Sound.
Cut-Off Delay Time is very important and difference for different battery capacity and application, please
carefully test and make a correct decision, for EV, you can select NO to control the EV car by manual NOT
controlled by BMS24T, but when cell voltage and temperature trigger the absolute maximum or minimum
ratings, the BMS24T will force to cut off charge or discharge to make sure the battery safety, and prevent
battery pack from explode or fire.
3. Current Calibration is not recommended unless use
new current shunt. Voltage and current is calibrated
before delivery.
4. Temperature Alarm OFF means battery temperature and
Difference of battery Temperature is unable.
5. Cell Empty Voltage and Cell Full Voltage is to set up cell
voltage bar graph, the value should be as same as Over
Charge Protection(P) Voltage and Over Discharge
Protection(P) Voltage
6. Setup the battery staring voltage, when minimum cell
voltage over the setup, balance will start automatically
7. Setup the minimum cell difference, when difference of cell voltage under setup, stop balance
8. Balance switcher, default Balance is OFF,
a) If balance switcher is OFF, the BMS don’t balance at any situation.
b) If balance switcher is ON, balance will start in battery in storage
c) If balance switcher is ON, and Balance in charger is ON, balance will start when battery in charge
d) If balance switcher is ON, and Balance in discharger is ON, balance will start when battery in

e) Balance current is 1.2A max. per cell,

BMS24T can resume cell voltage balanced status at the shortest time, it is based on 1.2A balance current per
cell, balancing accuracy is 8mV. Balance can be operated in charge or in discharge or in both, the feature can
be setup on program setup menu. The balance function is unable before delivery, after the BMS display each
cell voltage, please enter into program setup menu to enable balance.
Although balance current per cell is larger than other brand BMS, Chargery BMS24 use temperature
protection prevent BMS from overheating.

Operating guideline
1. Connect Beeper, LED, and Current Sensor to BMS24T main module,
and then connect relay Controller and temperature sensor too.
2. Connect main module to display module by COM2 port
3. Connect the battery to BMS24T, keep the cell polarity correct. The
detailed connection diagram is as the following typical connection
4. Move the power selector turn on the device.
5. BMS24T will initialize the beeper and LED, beeper sounds once time,
then display BMS24T and version, the battery type and cell count
interface is displayed. Three battery type LiPo, LiFe and LTO can be selected. Cell count range is 2S to 24S,
the cell count will be identified when the battery pack connect to the BMS24T. Press DOWN or UP button
choose the item and press SET/START blink, then press DOWN or UP button modify, finally press SET/START
button to run the BMS24T. After started, battery type and cell count will not be changed unless power off
BMS24T. Each cell voltage and other data are displayed correctly. If cell voltage is not displayed correctly,
please check the battery connection.
6. Press SET/START button for 3 seconds enter into Program Setup interface, modify Over Charge Current (50A
default) and Over Discharge Current (300A default) according to your application. If need balance in Charge
or in Discharge, please modify the Balance set on Program Menu. the balance function is off before delivery
7. SOC—battery gauge dashboard will be displayed first, as following. Press UP/DOWN button alter other