Where should you begin if you want this kind of battery set up for your rig? Let’s take a look at the basics. Dual battery systems are also very popular on liveaboard sailboats and power yachts. This is why the best overland battery setup is very often a dual battery setup with lithium batteries. The end result could involve you being unable to start your engine.ĭeep discharges of this battery type also damage the battery quickly and will cause the battery to fail much sooner. They’re not made for prolonged use, especially at deep discharges. They’re designed to experience a temporary high current when your vehicle starts but then immediately recharge the engine. This is because starter batteries are typically lead-acid or AGM batteries. However, the benefits of having the extra power greatly outweigh the cons.įor example, if you’re solely relying on your starter battery, you’ll only be able to use it minimally without the engine running. Having a dual battery setup in your overland rig or boat isn’t absolutely essential: using the engine battery can work. Does Your Overland Rig or Boat Need Dual Batteries? In many systems, the two battery banks can temporarily be “paralleled” to assist with starting the vehicle if you accidentally drain the starting battery. Having this additional source of electricity ensures you won’t accidentally drain your starter battery by overusing it, potentially leaving you stranded. For example, you can use it to charge your cell phone and laptop, run your “house” lights, power a small refrigerator, etc. This powers the electronics you use while you’re living in your rig.
The second part of the battery system is called the house battery.
It powers the chassis’s radio, lights, and electrical components and should mainly be used for starting and running only. This is the battery that primarily starts your vehicle. The first battery system is the starting battery. Do I Need a Dual Battery Setup for My Overland Vehicle?Ī dual battery setup uses two battery systems to maximize the amount of power and reliability you’ll have when out on your adventures.Can an Auxiliary Battery Drain the Main Battery?.Do I Need an Isolator for a Second Battery?.Will Dual Batteries Hurt My Alternator?.How Do You Set Up a Dual Battery System?.Does Your Overland Rig or Boat Need Dual Batteries?.
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