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 Charger Material: Metal Main Color: Black Input Voltage: 12.5-16V DC Solar Input Voltage: 16-24V DC Output Current: 20A Battery Type: SLA AGM LioN and Calcium Waterproof Grade IP65 Working Temperature: -10 ℃~45 ℃ Size: 193.84*115*37.07mm Package Size: 30*20*5cm Package Weight: 1390g Package List: 1 * Battery Charger Package List: 1 * Battery Charger