20S BMS 90A 72V – 84V
Price – 120BGN. per item including VAT
Battery Management System 20S BMS (Battery management system) 90A 84V Series Balanced Charge Protection Board
Charging voltage: 84V (BMS min 60V – 72V – max 84V) – cells are charged up to 4.2V per cell (84V per pack);
Cell overload protection - the board stops the discharge, until the pack is charged above a given voltage;
Continuous operating discharge current (upper limit): 90A (if there is no good cooling, it is good to reduce the current consumption)
Continuous operating charging current (Upper limit): < 90A
WIRING DIAGRAM: 1. On C- (it's also P-) connect “-” of the charge and the load;
2. На B- you connect “-” of the battery;
3. When the balance cable is disconnected, you solder along the balance cables to the series of the battery;
4. Finally, connect the balance connector to the BMS.
Main applications: Accumulator lithium-ion and lithium-polymer batteries, electric wheels, electric scooters, inverters, electric motors, electric cars, electric scooters and many more.SPECIFICATION:
PARAMETERS:
Discharge amperage: 90A (max)
Amperage at temporary peak discharge: 160A
Charging volts: 84V
Charging current: 90A (max)
Overcharge detection: 4.28 +- 0.05 V
Reaction when overdischarge is detected: 100 mS
Freeing the charging port after recharging: 4.08 -+ 0.05 V
Balance charging voltage: 4.2 -+ 0.025 V
Interrupt charging: 4.2 -+ 0.05 V
Balance Amps: 60 -+ 5 mA
Overcharge detection: 2.55 +- 0.08 V
Reaction to over-discharge: 50 mS
Recovery after reboot: 2.9 +- 0.1 V
Overdischarge detection voltage: 150 mV
Recharge response time: 15 mS
Over current protection:
Voltage detection 150 mV
Reaction time 15 mS
Detection values 200 +- 20 A
Release Condition Cut Load
Short-circuit Protect:
Protect Condition Cut Load
Delay on detection 200 uS
Switching off the load
Resistance less than: 15 mΩ
Operating current less than 70 among others
Sleep Current (when Over-discharge) less than 10 among others
Work temperature -30/+80 C
If they are not - load them separately and then use them in batches.
To check the condition of the battery - if the voltage of a given / certain series fall more, it is weak in these series / damaged battery.
It is not good to mix old or weak, or different battery models together! The state of the assembled battery is relatively equal to the state of the weakest element in it!
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