Features: 【Intelligent Temperature Control Management】Employing advanced thermal regulation technology ensuring stable battery performances under high-load conditions. 【Robust Discharge Capability】Supports 120A high-current discharge to meet the demands of powerful equipment. 【8 mosfets Enhances Design】Incorporates eight MOSFETs to effectively reduce internal resistance and enhancing overall efficiency. 【Broad Compatibility】21V voltages design accommodates multiple battery packs, suitable for various brands of power tools and electronic devices. 【Robust PCB Construction】Utilises premium PCB for exceptionally durability and reliability. Specifications: Component: PCB Size: 8.5x5cm/Applicable to a variety of battery assembly needs. Suitable for 21V voltages systems, supports 8 mosfets tubes in parallel, providing strong current carrying capacity. Technicals: Temperature-controlled discharge function, discharge current can reach 120A, effectively protecting battery safety. widely used in power tools, electric vehicles, energy storage equipment and other situations where high current output is required. Package Includes: 1PC Battery protections board note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.