A DC-DC or alternator charger recharges your portable battery while the engine runs. Six products from Bluetti, Anker and EcoFlow, from 600 W to 1,200 W and up to 30 A at 12 V, cover campervans, vans and boats.
Anker
Bluetti
Bluetti
Bluetti
EcoFlow
EcoFlow
These chargers draw energy from the alternator or starter battery to feed a portable power station or an auxiliary battery. They are handy in a van, motorhome or boat, when the sun is missing or you drive long distances.
First check your vehicle voltage, 12 or 24 V, then the input and output range on the product page, for example 11-28.8 V for the Anker model. Also make sure the unit works with your battery: see the product page for compatible models. These chargers fit into an installation that often includes cables, fuses and sometimes a battery isolator; have the setup checked by a professional if you are not comfortable with vehicle electrics. Returns are free within 30 days and the 2-year legal warranty applies to every unit.
