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Free camping is increasingly popular in Australia, and more caravans and motorhomes are using solar systems instead of generators. A complete system has five main parts: panels, a regulator, a battery bank, an inverter, and a DC-DC charger. Sizing should start with actual daily power usage, not budget or panel size. For most setups in 2026, an MPPT regulator, lithium (LiFePO4) batteries, and a DC-DC charger for topping up from the tow vehicle are recommended.
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