3Pcs Battery Protect 12-36V Low Voltage Disconnect Switch Over-Discharge Protection Module for Lithium Batteries Digital Cut-Off Protector

["Compact & Efficient: Board size 57x42x19mm, input voltage DC 12-36V, accuracy ±0.1V, power consumption <1.5W, and maximum current 20A before breaker trips","Over-Discharge Protection: Customize parameters to auto-disconnect battery at preset voltage, preventing over-discharge and extending battery life with flexible power management","Simple Operation: Easily restore factory settings by holding buttons during power-on; user settings are retained after power loss for seamless operation resumption","Versatile Application: Voltage controller with relay switch for on/off output, compatible with lead-acid, lithium-ion, and solar panel batteries (excludes battery packs)","Reliable Performance: Miniaturized relay design ensures durability; use below 8A current for voltages over 12V to prevent damage and maintain optimal functionality"]