Batteries are great for charging your mobile while you're out and about, but what do you do if your battery runs out of juice? If it were solar powered, you could just put it in the sun.
Solar batteries are relatively cheap and can charge your phone when you are not in a power outlet. They are great for camping, hiking, canoeing or power related emergencies. You could even leave one in the backseat of your car if you're in the middle of nowhere with an empty tank and an empty cell phone. You can also use them to charge laptops, GoPros, pico projectors, smartwatches, and other devices that you want to bring outdoors.
These power supplies allow you to recharge your phone between 4 and 8 times when it is in your device for a full charge. Keep in mind that most solar batteries take about a week in the sun to get a full charge (you can plug them into a power outlet if you need to recharge them faster). However, you can realistically use them to keep your phone powered on forever, as long as you do not spend your entire camping trip draining the phone's battery for FaceTime.
Kiizon 25,000 mAh Waterproof Dual USB Solar Battery Pack ($ 40)
If you're looking for a rugged high-capacity solar battery pack for intense outdoor activity, check out the Kiizon power supply. Unlike most batteries, the Kiizon is waterproof, so you do not have to worry about leaving it in the rain or on a boat. And since it has a capacity of 25,000 mAh, you should be able to fully charge your phone more than 7 times, especially if you are conservative.
The Kiizon has two USB-A outputs and a micro-USB input. You can charge two devices at the same time. Because it's Quick Charge-compatible, you do not have to wait for your entire hiking trip to charge your phones or cameras. The Kiizon also has a number of LED indicator lights and a carabiner so it can be your little waterproof companion day and night.
Ayyie 10,000 mAh Dual USB Solar Battery Bank ($ 24)
The Ayyie is an affordable solar battery pack designed for camping, hiking and other outdoor activities. It has a built-in compass and a set of LED indicator lights to help you navigate the deep, dark wilderness. This powerhouse is also supplied with a carabiner so you can safely load it while hiking or cycling. Unfortunately, this power adapter is not waterproof, but you have to reduce your losses for a battery that is so cheap. Besides, you could always put it in a Zip Lock bag or something.
The Ayyie has a capacity of 10,000 mAh, which is enough to recharge your phone about four times. It also has two USB-A inputs that can charge two devices at the same time, but they are not Quick Charge-compatible. That's a crap, but for $ 24, that's a bargain. No complaints here, buddy.
Two USB Solar Chargers with 24,000 mAh ($ 24) ($ 43)
As already mentioned, most solar batteries need about a week in the sun to get a full charge. You are fine for a week's camping trip, but you will not be disconnected from the network and will not be using multiple devices for very long. What is the obvious solution to this problem? Cmon, add more solar panels!
The Feelle is a solar battery pack that owns three solar panels instead of one. After about 35 to 40 hours in the sun, the battery can be fully charged. This is radically faster than most solar batteries. Remember that the Feelle has a large capacity of 24,000 mAh. With this power adapter you can charge your phone, your laptop and a few other devices permanently, without ever being connected to a power outlet.
This power adapter comes in a beautiful leather case, so you can look cool when you're backpacking in the middle of nowhere. It has two USB-A inputs, but none of them are Quick Charge compatible. Hopefully, you enjoy the great outdoors so much that you do not care how fast your phone charges.
RAVPower 25.000mAh – 3 Inputs Solar Battery Pack ($ 53) ($ 53)
If you need a high-performance solar battery that has USB-C compatibility, have a look at the RAVPower 3 input power supply. It has a USB-C port, a USB-A port and a micro-USB port. With these three connections, three devices can be charged at the same time. That's pretty cool.
It's good to charge a solar power plant at home before taking to the streets. You know, because it takes a week to get charged in the sun. If you want to quickly charge this power adapter at home, you can charge it at the same time with a USB-C and a micro-USB cable. Since this RAVPower pack has a capacity of 25,000 mAh, it is very much appreciated that it can be charged very quickly.
While this RAVPower power supply may be a sleek, versatile powerhouse, it may not be the first choice for a violent camping trip or dirty outdoor adventure. It's wrapped in durable plastic, and although it was obviously designed for outdoors, you probably do not want to leave it in the rain or put it in a canoe.
RAVPower 10,000mAh Solar Battery Pack ($ 32)
If you are looking for a small, affordable solar battery pack, you should take a look at RAVPower's 10,000 mAh pack. It's a bit thinner than most solar batteries, but it still has two USB-A inputs and a micro-USB input so you can load multiple devices at the same time.
Unfortunately, this power adapter does not have quick-charge capabilities, but it has a relatively large capacity at such a low price. This can be the kind of powerhouse that you leave in your car or that you bring along when cycling.