The Goal Zero nomad 20 is a flat and highly portable solar charger designed for backpackers and campers who want to travel light but need something more than a basic 5W panel. Half-a-metre wide when unfolded and weighing less than a laptop, it has an adjustable kickstand for aiming it directly towar Contact online >>
The Goal Zero nomad 20 is a flat and highly portable solar charger designed for backpackers and campers who want to travel light but need something more than a basic 5W panel. Half-a-metre wide when unfolded and weighing less than a laptop, it has an adjustable kickstand for aiming it directly towards the sun when placed on the ground. The rugged plastic frame has an attachment point on each corner, so you can strap it to a backpack or secure it firmly in place wherever it needs to be.
The Forclaz solar panel SLR 500 is a 10W solar charger with a single USB port, ideal for keeping battery packs topped up while on the move or camping. A respectable power output places this versatile panel somewhere in the middle of the range, delivering more energy than a small trickle charger but less than a larger and more expensive solar panel.
The Ecoflow 220W is a dedicated solar panel that produces roughly ten times the wattage of the next best entry in our list. This does make it less portable, but also way more useful for charging the specialist batteries needed to power small appliances at campsites, off-grid rental lodges, caravans, and for emergency home backup should your electricity ever fail.
This ultra-thin 5W solar panel is an all-in-one solution and, unlike other solar chargers in our list, has an integrated 2,200mAh battery pack embedded on the back. That''s about enough to charge your phone once, which is all you need in an emergency.
A folding solar charger with 28W output in optimal skies, this four-panel BigBlue solar panel can recharge three low-draw, 5V devices at the same time through its three USB-A ports. Powerful enough to slow-charge tablets and other high-drain mobile devices, this solar charger has a flexible design that''s useful for hanging from your back as you walk, from your tent as you camp, or from a window frame for household power. It comes with carabiners for attaching it to a rucksack or frame.
This is a 25,000mAh battery pack with a fold out four-panel solar cell, which produces enough photonic juice to trickle-charge the pack''s power reserves over time. These super-portable chargers are limited by physics, that old killjoy, so don''t expect the rinky-dink panels to kick out enough energy to be able to run a laptop or survive entirely off-grid. They''ll charge the battery pack to full given a few days of bright, sunny weather.
If your car battery has a tendency to run dry when left idle for too long, you need a solar-powered car-battery maintainer. Even in the photon-averse British weather, a solar panel affixed to the inside of your windscreen can trickle enough charge into the battery to keep it refreshed and ready to go.
The sun is finally making its tentative return, which means garden parties, picnics in the park and – most thrillingly of all – the prospect of harvesting free electricity from the sky using one of the best portable solar panels.
While the heavy-duty solar panels you might install on your roof can help power everything from your washing machine to your portable air conditioner, smaller solar panels are perfect for keeping electronics like laptops, phones and tablets charged up while camping or hiking in the great outdoors.
Coupled with a portable power station, some of the more powerful panels in our list can be used to keep garden sheds, polytunnels or off-grid campsites thrumming with a limited supply of free electricity, even once the sun goes down.
Advances in technology mean today''s solar panels are smaller, lighter and more efficient than ever. Chargers that were once too big to carry can now be folded down to fit inside a travel case or hang from the back of your pack while hiking. So long as you''ve got enough sunlight, the best solar chargers can indefinitely extend the life of your phone, your headphones, and even your laptop.
Solar panels are also used to keep the batteries of cars, motorhomes and boats from going flat when they''re not being used, as most panels will start working automatically as soon as sunlight hits them, meaning you can set them and forget them.
We tested these solar panels and chargers last summer, as well as throughout the darker and cloudier days that followed. Solar panels use the sun''s light to produce energy – not heat – so it''s possible to continue using them during the winter if the sky is clear and you can angle them correctly. You''ll still be severely limited by shorter daylight hours and overcast conditions, naturally.
We liked that the USB output is on a lightly flexible arm, which helps prevent wear and tear on your charging cables. You can also chain multiple panels together with the included 6ft-long chaining cable to speed up charging.
The dual-panel design packs away neatly into a fabric pouch and can be firmly strapped to a backpack with the help of included carabiners and eight anchor points. A reliable charging solution that straddles the gap between low-and-slow panels and more serious hardware, the Forclaz panel suits casual campers and long-distance walkers.
The foldable panel itself is exceptionally well made, snapping shut magnetically and featuring a comfortable carry handle for safe transport and setup. The kickstand can be adjusted to any angle to get the most efficient performance possible, though the lightweight construction leaves it prone to falling over in windy conditions. Handily, there are reinforced eyelets and loops to secure it. The panel isn''t waterproof either, so we''d advise against leaving it outside the tent overnight.
The solar panel is bifacial, meaning it''s got a second 155W panel on the reverse side. This allows it to pick up a small amount of bonus current by absorbing some ambient light in bright conditions, which creates a more even power distribution in changeable weather conditions and so less wear on the device it''s charging.
We tested the 220W panel with Ecoflow Delta power station, a 14kg beast of a battery that features four USB-A ports (two fast-charging), two USB-C ports and four three-pin plug sockets. The station can be slow-charged by solar panel, or by mains power in less than two hours.
It has a simple wire-loop kickstand that can be threaded through a backpack strap, hooked from a tree branch or used to prop the panel up on the ground. Eyelets on the bottom corners also prevent it from sliding out of the sunlight as you walk. We liked the incredibly simple sundial on the corner of the device, which allows you to accurately aim the panel directly into the sunlight for maximum efficiency.
This 10W solar charger can be placed inside your car, but it''s waterproof and durable enough to be positioned outside for better efficiency. It clamps directly to the battery using crocodile clips or can deliver charge via your cigarette lighter if the car''s electrics allow it. One downside is that the basic design means there''s no interface or status light to confirm that any charging is happening, so if want to be absolutely sure it''s working you''ll need to use a multimeter to double check your car battery level.
Before buying a solar charger, you should think about the kinds of trips you will be using it for and what you''ll be charging. There are three things worth considering – output capacity, surface area and the flexibility of the panels.
Solar cells deteriorate over time. While performance varies from model to model, most models are rated to maintain 99 per cent efficiency for upward of three years, with some of the more premium designs claiming to last an impressive 25 years.
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