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Reliable off-grid power is essential for overlanding, camping, RVing, or working from your vehicle. Whether you’re running lights, a fridge, tools, or even luxuries like a coffee machine or TV, you’ll need an auxiliary battery to support your setup.
An auxiliary battery, also called a secondary battery, is an extra battery installed in your vehicle, trailer, RV, or boat. While the starter battery is dedicated to cranking the engine, the auxiliary battery powers your accessories and equipment.