Lithium battery three-pin protection board generally includes the following three wires:
1. Power supply positive (red line) : The positive terminal of the battery pack connected to the drill is usually marked with the \"\" symbol.
2. Power supply negative (black line) : The battery pack negative terminal connected to the drill is usually marked with the \"-\" symbol.
3. Signal cable (?? Line) : A control circuit connected to an electric drill for transmitting switching signals.
The wiring method is as follows:
1. First, connect the red wire (positive terminal of the power supply) to the positive terminal of the battery pack, ensuring that the connection is secure.
2. Then, connect the black wire (the negative end of the power supply) to the negative end of the battery pack, again making sure that the connection is secure.
3. Finally, will...? The line (signal line) is connected to the control circuit of the drill, usually located near the switch. Note: When connecting the signal line, make sure that the drill is turned off to avoid touching the switch by mistake.
4. After the wiring is complete, check whether the wires are firmly connected, and then open the drill for testing.
It is important to note that during operation, ensure that safety procedures are followed to avoid electric shock and other accidental injuries. If you encounter problems during the operation, please feel free to contact us.
Wish you a happy use!
For the wiring method of the three-pin protection board of the 12V electric drill lithium battery, the positive electrode, the negative electrode and the middle foot need to be connected to the positive and negative terminals of the lithium battery and the P-end of the BMS circuit, as well as the B-end and the C-end. Among them, the middle foot needs to connect the integrated circuit between the positive and negative electrodes of the lithium battery to achieve multiple protection functions such as overcharge, overdischarge, and overcurrent. When wiring, it is necessary to pay attention to the contact position of the positive and negative electrodes to ensure that the wiring is firm and reliable, and to test whether the circuit works normally to ensure the stable operation of the equipment.