12V 40A DC To DC Charger Battery Charger 500W For Lead-Acid And Lithium AGM GEL

Versatile Battery Types: This 12V 40A DC to DC charger is compatible with lead-acid and lithium batteries, and works with various alternator types. It is ideal for charging standby batteries in RVs, trucks, and boats

Multiple Protections: Built-in over & under voltage, high temperature, reverse polarity protection ensure this on-board battery charger runs smoothly and securely. The isolated input/output keeps your vehicle's electrical system from interference

Smart Multi-Stage Charging: This battery charger features multi-stage charging modes for LifePo4 (2-stage) and lead-acid batteries (4-stage: bulk, absorb, float). It ensures an optimal process to fully charge your battery and extend its lifespan