Off-grid power comes down to three bits of your kit working as a team: a battery to store your power, an inverter to convert it into the type your gear needs, and solar panels to top it all back up. Nail the sizing, and you'll run the fridge, charge the phone and boil the billy for days. Get it wrong, and you'll be sitting in the dark, cursing a flat battery. Good news is it's dead simple once you know what each piece does.
Your battery is the heart of the setup. The two types you'll see most are AGM (lead-acid) and lithium (LiFePO4), and the big difference is usable capacity. With an AGM, you want to keep it above 50% charge to protect its lifespan, so a 100Ah AGM really only gives you about 50Ah to play with. A lithium battery the same size gives you nearly the full 100 Ah, weighs about half as much, and lasts thousands of charge cycles instead of hundreds. That's why most serious tourers run lithium camping batteries these days. Running a big rig with a fridge, lights and a few gadgets? We offer a range to choose from, including iTechWorld, Amptron, and Custom lithium batteries.
Here's the thing, your battery pumps out 12V DC, but your coffee machine, laptop charger and power tools want 240V AC, like the socket at home. That's the camping inverter’s job. Size it to the total wattage of whatever you'll run at once, and leave headroom for surge, because motors and compressors draw extra grunt the moment they kick on. For anything with a screen or a motor, go for a pure sine wave model, which delivers clean power that won't cook sensitive electronics.
Solar is what keeps you out bush for the long haul without flattening the battery. Panels are rated under ideal lab conditions, so expect a touch less once you factor in cloud cover, heat, and the sun's angle. Portable solar panels let you park in the shade and chase the sun with the panel instead, which beats a fixed roof panel baking over a hot campsite.
Add up what you use in a day. A camping fridge chews through roughly 30–50 Ah a day, depending on its size and the heat; then tack on your lights, phone, and the rest. Parked in one spot for days on end? Lean harder on solar. Knocking over big kilometres daily? Your vehicle's alternator does plenty of the charging for you.
No two trips are the same, so your power system shouldn't be a copy of someone else's. Work out your daily load, match your battery, inverter and solar to it, and you'll head bush knowing the fridge stays cold and the lights stay on. Shop the Outback SafeTrack range to find gear sized to your adventure.
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