Victron - Orion IP67 24/12-20A (240W) [ORI241220260] Blue Smart Chargers IP65 with DC connector - CEE 7/16 Plug see its product page

see its product page

Other features include fully automatic three stage charge characteristic that ensures batteries are fully charged every time and three isolated charge outputs for multi battery configurations to suit the majority of typical installations

Charge voltage can be measured directly on the battery terminals in order to compensate for voltage loss due to cable resistance

Using synchronous rectification

Victron - Orion IP67 24/12-20A (240W) [ORI241220260] Blue Smart Chargers IP65 with DC connector - CEE 7/16 Plug see its product pageCompletely encapsulated: waterproof, shockproof and ignition protected Water, oil or dirt will not damage the Orion IP67 DC DC Converter. The casing is made of cast aluminium and the electronics are moulded in resin. Available in 5 models Orion IP67 24 12 5 Orion IP67 24 12 10 Orion IP67 24 12 20 Orion IP67 24 12 100 Orion IP67 12 24 50