There are two kinds of devices for this: DC-DC chargers and Battery Isolators. So you need a device that allows you to charge a second (auxiliary) battery from your van’s alternator without draining your starting battery when the engine isn’t running. But paralleling your batteries means that when the engine’s off, your electrical loads will also drain the starting battery – not good if you want to start your van in the morning! You can easily use your alternator to charge your second (auxiliary) battery simply by connecting the positive terminals of both batteries so that they’re in parallel. An alternator is a device that converts the mechanical energy from your van’s engine into electricity, and uses that electricity to power electronics in your van and charge your starting battery.
#Keyline smart battery isolator how to#
How To Charge Your Van’s Batteries While DrivingĮvery vehicle has an alternator. Electricity on the Road in Any Conditions!.Installing a DC-DC Charger or Battery Isolator in Your Van.What Size DC-DC Charger or Battery Isolator Do You Need?.How To Charge Your Van's Batteries While Driving.Life on the road means a fair amount of driving, and having the ability to charge your batteries while driving is essential for vanlife. And if you’re on a tight budget, you can even skip the solar and still have basic electricity in your DIY van build. That’s why we highly recommend setting up your campervan electrical system to charge your batteries from your van’s alternator while you’re driving.Ĭharging from your alternator is a great way to supplement your solar panels and make sure your batteries stay topped off no matter the weather. Even with our larger 400W system we’ve run into problems with battery drain after about 4-5 days in poor sunlight conditions. But sometimes solar just isn’t enough – especially if your budget doesn’t allow you to throw down for a huge multi-panel system.Ĭloudy weather, wildfire smoke, and camping in shady forests can limit the amount of sunlight getting to your panels, leaving you scrambling for adequate sun to recharge your depleting batteries.
#Keyline smart battery isolator install#
Many vandwellers install solar power in their rigs. It means you can live completely off the grid with lights, a fridge, phones and computers – all while not worrying about electric bills or power outages. Having electricity in your van is just plain awesome.
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