I would read and read about the dual batteries and how to do isolator setups on the Internet from various websites and on Expedition Portal. But you don’t ever really want to kill your starter battery–it’s not good for them in the long run and they aren’t built to be drained down to zero and then charged back up. Of course, you can buy portable emergency jumper batteries, they also sell batteries with a special jumper built right into it.
I now picture Walter White in Breaking Bad rigging up sponges and various metal components to jumpstart their RV battery… Although I could never do that! Alternatives to a Dual Battery Setup I can think of few things worse than getting stuck out in the middle of Grand-Staircase Escalante’s Hole in the Rock road, or some other remote area and being unable to start your vehicle and being stuck without cell service. Thus allowing you to connect your accessories and electronics up to this secondary battery to use while camping without ever worrying about killing your main battery and being unable to start your vehicle the following morning. In practice, this system means that while you are driving around all day you are charging both batteries like normal, but when the vehicle is off the batteries are not connected and cannot see one another. A dual battery with an isolator, for those who don’t know, is pretty much what it sounds like: connecting two car batteries to your vehicle’s alternator while adding in an isolator of some sort to keep the batteries separate (isolated!). Up until now, my answer had always been, “I don’t know, but that’s something I really wanted to do before leaving!”īefore we get into how to install a second battery in your car or truck, maybe we should talk about WHY. One of my most frequently asked questions about my truck camping setup was always in regards to a dual battery setup and adding an isolator.
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