ECO-WORTHY 12V 40A DC to DC Charger with Solar Charge Controller Built-in,2 in 1 On-Board Battery Charger with MPPT LiFePO4 Lithium Battery Gel AGM, Multi-Stage Charging for Solar Panel Alternator

• [Multi-input Efficient Charging] ECO-WORTHY DC-DC charger with solar charge controller built-in.2 in 1 charger with generator starting battery input and solar panel input, can charge different types of batteries. Suitable for AGM/GEL, lead acid, lithium, and calcium batteries.
• [Intelligent MPPT Charging] IP65 waterproof. The MPPT solar intelligent control management system features charging memory to record user charging habits.
• [One-Way Charging] Enhanced safety with isolation for primary and secondary batteries. To prevent power loss from the house battery, we have added one-way charging to prevent reverse charging and power consumption.
• [Comprehensive Protection Measures] Engine start battery low-voltage protection. Overcharging and short-circuit protection for extended battery lifespan.
• [Easy to use] Clearly labeled wiring for solar panels, alternator, and battery. Indicator lights for normal charging connections, ensuring easy identification of abnormal connections.