ECO WORTHY 12V 40A DC to Battery Charger with MPPT On Board Solar Lithium LiFePO4 Gel AGM, Multi Stage Charging for Panel Alternator in RVs Trailer

High Frequency Auto Charging: The addition of stater battery and leisure battery isolation achieves greater safety performance. In order to prevent the loss of power from the leisure battery, we have added one-way charging to prevent the life battery from back-charging and power consumption Multi-Input Efficient Charging: The ECO-WORTHY 40A DC to DC charger has unique charging options. This multi-stage, multi-input battery charger can charge home batteries by connecting to the starter battery of a car alternator or by connecting a solar panel directly to the unit. Provides proper charging for AGM/GEL, Lead acid, Lithium and Calcium batteries Intelligent MPPT Charging: With IP65 level waterproof. MPPT solar intelligent control management system has charging memory function, which can record according to the user's charging habits Perfect Protection Measures: Low voltage protection of engine starting battery. Life battery overcharge protection and Short circuit protection Easy To Use: There are wirings for solar panel, alternator and battery. Normal charging wiring will be indicated by light to better determine whether the connection is abnormal