Smart Battery Systems (SBS) with SmBus V1.1 support for 7.4V / 11.1V / 14.8V Li-Ion battery packs
Amazon.com: Renogy 12V 40A DC to DC On-Board Battery Charger for Flooded, Gel, AGM, and Lithium, Using Multi-Stage Charging in RVs, Commercial Vehicles, Boats, Yachts, 40A : Automotive