Features: Designed for 18V BAT610 BAT609 BAT618 lithium batteries, this PCB charging protections circuit board ensures safe and stable charging with intelligent current management, preventing overcharge and short circuits to extend battery lifespans. Engineered with premium PCB for exceptionals thermal conductivity, it efficiently dissipates heat during operate while maintaining structural durability against impacts and corrosions. Ideal for outdoor workers, enthusiasts, and professional who require reliability power solution in highly demand environment like construction sites or workshops. Optimized for prolonged usage in extreme temperatures and heavy duty applications, it safeguards tool performances during continuous drilling, cutting, or other power intensive tasks. Universally compatible for battery, this circuit board simplifies maintenance with easy installation, eliminating the need for additional adapters or technical expertise. Specifications: Component: PCB Size: Approx.4.5x4cm/1.78x1.57inch Process: precise circuit design,quality welding technology ensures stability Color: Green for 18V BAT610 BAT609 BAT618 lithium batteries Package Includes: 1pc Battery Protections Board note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.