1. with stable performance, this protective plate is suitable for 5S lithium-ion batteries and is mainly used for electric tools. 2. This product uses 5 series of lithium battery management dedicated ICs as processors to detect real-time information such as voltage, charging and discharging current, and environmental temperature of each battery. 3. Welding wires are convenient for connection, and selecting the correct protective plate is crucial for extending the battery life. 4. Stable various charging and discharging protection functions, achieving protection functions for battery overcharging, discharging overcurrent, short circuit, charging overcurrent, temperature protection, etc 5. The protection board has delayed self recovery, low power consumption, and can be used for Makita battery pack. With thick copper hardware terminals, durable! Long term use does not generate heat. Note: The wiring color on the protection board is random and cannot be specified. Due to different production batches, the layout and appearance of the protection board are different, which does not affect the use. Colour:As Shown Material:PCB Package Contents: 1 * Lithium Battery Protection Board 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.