Quick answer: for most weekend and week-long camping trips, you can keep phones, headlamps and lanterns charged with a 10,000 mAh power bank plus a foldable 20 W USB solar panel. Charge the power bank from the panel during the day and charge your devices from the power bank at night. Point the panel directly at the sun, keep it cool and out of shade, and expect real-world output to be noticeably lower than the rated wattage. Larger setups (fridges, lights for a whole camp) need a bigger panel and a portable power station or battery.
Phones have become essential camping gear. We use them for maps, weather warnings, fire danger alerts, photos, music and sometimes even emergency calls. Add headlamps, lanterns, cameras and GPS units, and power quickly becomes a real concern on any trip longer than a night. The good news is that Australia has some of the best sunshine in the world, and small, affordable solar gear can keep you charged almost indefinitely. This guide explains how camping solar works in plain English, how to work out what size you need and how to avoid the common mistakes that leave campers with flat batteries.
1. How camping solar works: the basic setup
A simple camping solar system has three parts:
- A solar panel converts sunlight into electricity. Small foldable panels like a 20 W solar panel charger have USB outputs so you can plug devices straight in.
- A battery stores the energy. For phones and lights, this is usually a power bank. Some, like a 10,000 mAh solar power bank, have a small built-in solar cell for emergency top-ups.
- Your devices – phones, headlamps, lanterns, speakers and cameras.
The most efficient way to use them is to charge the battery during the day and your devices at night. Sunlight comes and goes as clouds pass, and many phones stop and start charging when the panel's output drops. A power bank smooths that out: it soaks up whatever the panel produces through the day, then gives you a steady, full charge whenever you need it. It also means your phone doesn't have to sit in the hot sun next to the panel, which is bad for its battery.
It helps to know the difference between the three kinds of solar camping gear you will see. Solar power banks have a small panel built into the case. They are fantastic for emergencies and topping up over several days, but the built-in panel is small, so they are best charged from the wall before you leave and treated as a backup. Foldable solar panels are much bigger and produce far more power – they are the workhorse for keeping a power bank topped up. Portable power stations are large lithium batteries with USB, 12 V and sometimes 240 V outlets, designed to run fridges, laptops and lights; they pair with large panels and suit touring and long stays. Most tent campers only need the first two.
Some products combine everything. A solar camping lantern with phone charger, for example, charges in the sun during the day, lights your camp at night and can top up a phone in a pinch.
2. How much power do you actually need?
To size your setup, you need to understand two units. Milliamp-hours (mAh) measure battery capacity – the bigger the number, the more it stores. Watts (W) measure how fast a panel can produce power in ideal conditions.
As a rough guide, most modern smartphones have batteries of roughly 3,000 to 5,000 mAh. Because some energy is lost converting and transferring power, a 10,000 mAh power bank typically gives about two full phone charges – often a little less in practice. Headlamps and lanterns usually have much smaller batteries.
A simple way to size your system:
- List what you need to charge each day (for example, two phones and two headlamps).
- Estimate how many full charges that is per day (for example, two phone charges plus a little for lights).
- Choose a power bank that holds at least one day's needs – plus a buffer for a cloudy day.
- Choose a panel that can refill that power bank in a day of good sun.
For a couple on a weekend with phones and headlamps, a 10,000 mAh power bank may be all you need. For a week, or for a family, add a 20 W panel to keep it topped up. If you want to run a 12 V fridge, laptops or camp lighting for a big group, you'll need a much bigger system – typically a larger panel of 100 W or more and a portable power station or dedicated battery.
3. Getting the most from your solar panel
Solar panels are rated in perfect laboratory conditions. Out in the real world, output is usually noticeably lower than the number on the label – heat, angle, haze and cable losses all take their share. These tips make a big difference:
- Face the sun directly. Tilt the panel so it is square to the sun, and re-angle it every couple of hours as the sun moves. In Australia, panels generally face north.
- Avoid any shade. Even a small shadow from a branch or tent rope across part of a panel can sharply reduce its output.
- Keep it cool. Panels become less efficient when hot. Prop the panel up so air can flow behind it rather than laying it flat on hot sand or a car bonnet.
- Charge in the middle of the day. The strongest sun is from late morning to mid-afternoon.
- Keep your power bank in the shade while it charges, with a longer cable if needed. Lithium batteries don't like heat.
- Use good cables. Short, quality USB cables lose less power.
- Charge while you drive. If you're touring, top up from the car's USB or 12 V socket as a backup.
Hikers can strap a foldable panel to the outside of their backpack, but output will be lower because the angle keeps changing. It's usually more effective to set it up properly during lunch breaks and at camp in the afternoon.
Season and location matter as well. In northern Australia, the sun is high and strong for most of the year, though the wet season brings long cloudy spells. In southern states during winter, the sun sits lower in the sky and days are shorter, so a panel produces noticeably less energy per day than in summer – tilt it more steeply to face the low sun, and plan a bigger battery buffer. Dust and salt spray also reduce output, so wipe the panel with a soft damp cloth when it looks dirty. And secure it well: a gust of wind can flip a lightweight panel over, so tie it to a tent peg, chair or the car roof rack with a short cord.
4. Lighting your camp efficiently
Good lighting makes camp safer and more enjoyable, and modern LED lights use very little power. A smart lighting setup has three layers:
- A headlamp for every person. Hands-free light for cooking, finding things in the tent and late-night toilet trips. A rechargeable LED headlamp with wave sensor can be switched on with a wave of your hand – handy when your hands are full or dirty.
- A lantern for the table or tent. A magnetic rechargeable lantern can stick to the car, hang from the tarp or sit on the table.
- A low-level ambient light – such as a solar lantern – for a warm glow around the living area.
Power-saving tips: use the lowest brightness that does the job, choose warm or red light modes after dark (they're easier on your night vision and attract fewer insects), and switch lights off when you're stargazing. Being considerate matters too – point headlamps down when talking to other campers, and avoid shining bright lights at neighbouring tents. Browse all options in our Headlamps & Lanterns collection.
5. Battery care, safety and emergency planning
Lithium batteries are reliable and safe when treated well, but they do need some care:
- Keep batteries out of extreme heat. Never leave power banks or phones on a dashboard or in direct sun for long periods.
- Keep them warm in winter. Cold temporarily reduces capacity, so keep power banks in your sleeping bag on cold nights.
- Keep them dry and protect ports from sand and dust.
- Don't use damaged batteries. If a power bank is swollen, hot or damaged, stop using it.
- Charge fully before you leave. Start every trip with full batteries.
- Store at partial charge between trips, and top up every few months.
Most importantly, don't rely on your phone alone for safety. Phone reception is patchy or non-existent in much of regional and remote Australia. Download offline maps, carry a paper map, tell someone your plans, and consider a personal locator beacon (PLB) for remote trips – in Australia, 406 MHz beacons must be registered with AMSA, and registration is free. Keep an emergency reserve in your power bank – for example, never let it drop below a third – so you always have enough charge to call for help if you need to. Explore our Solar Power range for panels and power banks.
Conclusion
Solar power has made it easy to stay charged at camp without generators or noisy engines. For most campers, a 10,000 mAh power bank and a foldable 20 W panel cover phones, headlamps and lanterns for days or even weeks: charge the bank in the sun, charge your devices at night. Face the panel at the sun, keep it out of shade and heat, and look after your batteries. Add efficient LED lighting, and you'll have bright evenings and a charged phone for maps and alerts throughout your trip. Shop the full Lighting & Power collection to build your setup.
Camping solar FAQ
What size solar panel do I need for camping?
To keep phones and lights charged, a 20 W foldable USB panel paired with a power bank works well for most campers. Running a 12 V fridge or laptop needs a much larger panel and battery.
How many phone charges does a 10,000 mAh power bank give?
Typically about two full charges for a modern smartphone, sometimes less, because energy is lost in conversion and phone batteries vary in size.
Can I charge my phone directly from a solar panel?
Yes, but it's usually more efficient to charge a power bank from the panel and then charge your phone from the power bank, because clouds and shade interrupt direct charging.
Do solar panels work on cloudy days?
They still produce some power, but much less than in full sun. Plan a battery buffer for cloudy days.
Why does my solar panel produce less than its rated wattage?
Ratings are measured in ideal conditions. Heat, the angle to the sun, haze, partial shade and cable losses all reduce real-world output.
Which way should a solar panel face in Australia?
Generally north, tilted to face the sun directly. Re-angle it every couple of hours for the best output.
Can I leave my power bank in the sun while it charges?
Avoid it. Heat is bad for lithium batteries. Use a longer cable so the panel is in the sun and the power bank is in the shade.
Are solar lanterns bright enough for camping?
Good solar lanterns are bright enough for a table or tent. Combine them with headlamps for tasks and walking.
Is my phone enough for emergencies when camping?
Not in remote areas without reception. Carry offline and paper maps, leave a trip plan with someone, and consider a registered personal locator beacon.
How do I store power banks between trips?
Store them in a cool, dry place at partial charge, and top them up every few months so the battery stays healthy.