12V1 Car Battery Indicator Board for 3.7V 2S/3S/4S Lithium Packs with Anti-Reverse Connection

The 12V1 Car Battery Indicator Board is designed to monitor the voltage levels of 2S, 3S, and 4S lithium battery packs with a nominal voltage of 3.7V per cell. It provides real-time battery status to ensure optimal performance and prevent over-discharge. Featuring an anti-reverse connection design, this indicator board safeguards against possible damage from incorrect wiring. Compact and user-friendly, it's an essential tool for maintaining your battery packs and extending their lifespan. Use: Power display Manufacture country: China Instructions included: No