Feature:1. Efficient Charging: 12V 40A DC to DC On-Board Battery Charger utilizes MPPT technology to efficiently charge your batteries, ensuring maximum power conversion and faster charging times.2. Waterproof Design: With an IP65 waterproof rating, this charger is designed to withstand harsh outdoor conditions, making it perfect for use in trailers, RVs, camper vans, marine vehicles, and more.3. Multiple Protection Features: This charger is equipped with multiple protection features including overcharge protection, short circuit protection, reverse polarity protection, and overheat protection, ensuring the safety of your batteries and vehicle.4. Versatile Compatibility: This charger is compatible with a wide range of battery types including SLA, AGM, LioN, and Calcium, making it a versatile option for various vehicles and applications.5. Easy to Carry: With a compact and lightweight design, this charger is easy to carry for convenient access to power whenever you need it.Specification:Features:Efficient Charging: 12V 20A DC to DC On-Board Battery Charger utilizes MPPT technology to efficiently charge your batteries, ensuring maximum power conversion and faster charging times.Waterproof Design: With an IP65 waterproof rating, this charger is designed to withstand harsh outdoor conditions, making it perfect for use in trailers, RVs, camper vans, marine vehicles, and more.Multiple Protection Features: This charger is equipped with multiple protection features including overcharge protection, short circuit protection, reverse polarity protection, and overheat protection, ensuring the safety of your batteries and vehicle.Versatile Compatibility: This charger is compatible with a wide range of battery types including SLA, AGM, LioN, and Calcium, making it a versatile option for various vehicles and applications.Easy to Carry: With a compact and lightweight design, this charger is easy to carry for convenient access to power whenever you need it.Specifications:Item: Battery ChargerMaterial: MetalMain Color: BlackInput Voltage: 12.5-16V DCSolar Input Voltage: 16-24V DCOutput Current: 20ABattery Type: SLA AGM LioN and CalciumWaterproof Grade IP65Working Temperature: -10 ~45 Size: 193.84*115*37.07mmPackage Size: 30*20*5cmPackage Weight: 1390gPackage List:1 * Battery ChargerPackage List:1 * Battery Charger