4-96S Series Battery Management System for lithium batteries, lifepo4 batteries, lto batteries, etc..

4s-96s lithium battery bms

Performance and parameters：

1、 Real time monitoring of 4-96 series single cell voltage，total voltage is 403v，maximum 12 strings and minimum 4 strings are managed by a single module（The power supply of the module is from the battery，so the total voltage of a single module shall not be less than 9V，redundant unused channels must all be connected to the positive pole of the highest battery of a single module), the total input voltage of a single module shall not exceed 75V，single section monitoring voltage range is 0-5V，the total input voltage of the master shall not exceed 60V.

2、 Real time monitoring of total voltage, charge and discharge current, power, temperature and statistics of actual discharge ah，the host has a way to detect the real-time temperature of MOS tube，Each module is provided with 1 channel of temperature detection, totaling 9 channels of temperature detection.

3、The voltage of single battery is lower than the protection set value, the total current is higher than the protection set value, and the output is cut off to protect the battery pack from over discharge. When charging, any section of voltage is higher than the protection set value, and the charging current is higher than the protection set value to cut off the input. When the temperature of battery or MOS tube exceeds the set value, cut off the charge discharge channel.4、Real time display of capacity remaining percentage and remaining capacity, and display with graph progress bar.

5、Operation light indicates the system operation status.

6、Under high-voltage control, the rated output current is within 30a, and the maximum instantaneous output current is 70a; under low voltage control, the rated output current is within 120a, and the maximum instantaneous output current is 250a (the specific current parameters are determined according to the selected MOS model, and heat dissipation is required for long-time constant high current operation) .

7 、 3.5-inch IPS color screen display, ultra wide viewing angle, clear working status.

8、The master has the function of current calibration，the total voltage error is 1.2MV, so there is no need to calibrate.

9、The same port design of charge and discharge avoids connecting many wires.

10、The whole system adopts module cascade structure，with two core CAT5 twisted pair connection, communication distance is up to 40 meters（the distance is measured by CAT5 network line in laboratory environment，the actual communication distance should be reduced if there is a large interference or the wire selection is not appropriate) . In this way, the master and module, module and module can be placedover a long distance；

11、When the host is shut down, the module will go to sleep state, and the power consumption of the module is only 4ua, which will not cause the loss of battery power. The acquisition module can be installed close to the battery, which reduces the length of the balance line and acquisition interference. After the host is powered off, the parameters used will be saved automatically.

12、The collection module has the function of automatic battery balance, which balances the voltage drop of the battery until the drop is 0.001V. This function must be automatically balanced when the battery is full. The balanced discharge current is 200mA, and a large amount of heat will be emitted during the balance. It is necessary to pay attention to the heat dissipation of the heat sink attached to the collection module.

13、Module and host, module and module are designed in full isolation, all interfaces can be hot swapped, and those not used by temperature sensor can not be plugged.

14、The host has the function of active heat dissipation. When the temperature of the host's MOS tube exceeds 50 degrees, the fan will be started automatically to cool it with strong wind, so as to prevent the MOS tube from bursting due to high temperature；

15、After the input terminal is connected to the charger, it will automatically enter the charging state, and count the actual capacity, and display the charging current and power at the same time. With the increase of the charging capacity, the originally used capacity will gradually reduce, and the progress bar will act synchronously with the change of capacity.

16、 The BMS supports mobile app, which monitors and controls any status and parameters of the host through Bluetooth. When protection occurs, the mobile phone has the query of protection history, and the reason for the last protection can be queried.

17、At present, the host has 14 tube version, 28 tube version and relay version. The relay version supports two connection methods of the same port and the separate port, and supports the use of Hall current sensor.

18、The BMS has automatic control function of charge and discharge. After charging protection, as long as the discharge current is detected to be greater than 200mA, the charging port will be opened automatically to prepare for the next charging. After discharging protection, if the current of charging equipment is detected to be greater than 200mA, thedischarge channel will be opened automatically, and the whole process will be completed automatically. In case of safety problems such as over-current protection, over-temperature protection and wrong number of battery strings, The charge and discharge MOS tube is closed at the same time. At this time, the channel must be opened manually after troubleshooting.

19 、 The host instrument displays the current supported range, the maximum current is 999.9a, the maximum capacity is 6500ah, and the maximum power is 65000w

Details

Module board