BMS (Battery Management System)
For 72 Volt Lithium Battery Packs
With Optional Two 200A Contactors / Relays
5.0 * 4.5 * 1.3 in.
128 * 114 * 33 mm
14.8 oz. / 420 g
The Choice BMS is designed especially
for LiFePo4 and Li-NCM lithium battery packs applied to an energy storage system
or an Electric Vehicle (EV) such as an E-Motorcycle, E-Scooter, etc. 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.
- Advanced ADC
measurement technology, high accuracy, high voltage, and high current
detection circuit. The maximum voltage measurements tolerance is within
5mV at up to a 24S LiFePo4 Battery (100.8V).
regenerative braking, during braking operation can charge the battery pack
and the discharge power (Wh) will decrease to respond to the braking
current up to 600A. Bigger current can be customized.
- 1.2A per cell
balance current is very useful for a large capacity battery pack, the
feature can resume all cell voltage balancing in the shortest time. Over
temperature protection to make sure the system is safe during balancing.
- Calculates and
displays the charge and discharge power (Wh), generally the battery rated
power is the rated voltage multiplied by the rated battery capacity.
- The TFT LCD
screen provides rich information including current, voltage, power,
capacity, battery status, SOC, and temperature etc.
- Maximal safety
protection within the range parameters can be setup. The BMS will alarm
and cutoff charge or discharge according to the users’ setup, out of range
parameters, and trigged absolute maximum ratings. It will force a cutoff
charge or discharge to protect the battery from fire.
- Minimizes the
power consumption by drawing current from all cells or an external power
- Dual power
design, the unit can be powered by all cells or an external power supply.
- Detects the cell
count at any time and compares with the count detected when the switch was
on the first time. If it is not uniform, the device will alarm and cutoff
the charge or discharge according to the users’ setup. The feature can
prevent any cell connection from becoming loose.
- Sound alarm and
LED alarm will be triggered when any warning events happen, and then wait
several seconds before cutting off or not cutting off the charge or
discharge. The delay time can be programmed.
- Charge relay and
discharge relay are controlled independently.
- Two temperature
sensors monitor battery temperature on different positions.
upgrading the firmware program by USB port.
- Provides users
the maximal flexibility, key parameters can be programmed.
- Displays the
battery SOC or called battery gauge similar with car dashboard. Cell
count, battery pack voltage and battery gauge (%) is displayed
- In case that the
battery pack need not be charged and discharged, Press STOP button to
enter 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.
- LCD back light
ON time can be programmed to save energy. When it is OFF, press any key to
- Cell count error
- Over charge
- Under voltage
- Over current
protection when charged or discharged
- High temperature protection
- Low temperature
protection (on LCD unit V3.03)
differential cell discharge voltage protection
differential battery temperature protection
- Under SOC
72V LiFePO4 & Li-NCM
ACCURATE SCOPE OF THE CELL VOLTAGE
CELL VOLTAGE DISPLAY RANGE
VOLTAGE OF EXTERNAL POWER
1.2A per cell
TEMPERATURE DISPLAY RANGE
85dB at 12V, 25mA
AL alloy case
* SHIPPING/PAYMENT OPTIONS *
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your BMS (Battery Management System) for 72 Volt lithium battery packs order.
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or go through our Contact Us
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