1. The heating function is achieved by detect the battery temperature, combined with low temperature protection during charging, the status of the charger to achieve electricity Pool heating control function 2. Not all BMSs support the connection heating function, only BMSs with "Heat" in their models support the connection heating function 3. The heating interface requires an external heating film or charger. The green cable is connect to the heating film, and the red and black cables are connect to the charger. The maximum heating power is 3A, and the maximum heating voltage is 100V 4. Heating on condition: 1. The battery temperature is lower than the low-temperature protection temperature for charge; 2. By connect the heating film for heating, the APP will activate heating, which will consume battery power; 3. Heat through the charger, this is related to the protection board hardware and charger. Please place an order first Confirm the technical status 5. Interface Function Description: 1. Temperature sensor interface: All models of JK BMS are equipped with. 2. RS485 interface: All models of JK BMS are configured with. 3. LCD interface: All models of JK BMS are equipped with. 4. CAN interface: Only configurations with"CAN" in the model. 5. Heating interface: Only configured with "Heat" in the model<br><br>BMS operating instructions: 1. Download Bluetooth APP from mobile phone. Download : Search for "JIKONG BMS" in the 2. Connect the BMS and battery pack. that the last cable is connected to the positive terminal of the battery. Before starting, the total voltage of the battery pack must be 20V. 3. Use the LCD activation button or start switch to activate the BMS 4. that your phone's Bluetooth is turned on, then open the app, click on the top left corner of the app to search for devices, click on the device name, and enter the default password:1234 5. The first startup requires parameter settings and a password. The default parameter is set to password: 123456. set the number of units and battery type. 6. After setting the parameters, return to the real-time status page to check the battery status. If there is no error message, the operation is normal. The blue font displayed on the APP represents the highest voltage, while the red font represents the lowest voltage. Due to different product batches, the appearance may be different, which does not affect use. Type:A Colour:As Shown Material:PC+Metal<br><br>Package Contents: 1 * B2A8S20P Active Balance JK BMS<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.