Whether you need juice during a power outage or plan on camping in the field for days on end, there’s a portable solar-powered battery to get the job done. There are a few basics to keep in mind when choosing a device. The first is milliamp-hours (mAh), which is the total capacity of the battery. The higher the mAh, the more energy the battery will store, and the more often you can charge your phone or other devices. A watt-hour (Wh) is a unit of energy that measures the amount of energy a device needs to function. For example, a 60-watt light bulb consumes 60 Wh of energy for every hour it is turned on. Devices with a higher Wh need more mAh capacity.
Also keep in mind that solar charging takes time, up to 20 hours of direct sunlight in some cases, so while these chargers are ideal for remote locations, they probably won’t be your daily use method. Smaller solar batteries are often designed with attached panels. If you are looking for a larger battery with a bit more power, you will probably have to purchase a portable solar panel separately.
There are many solar-powered portable phone chargers to choose from, but BEARTWO’s commitment to durability and portability is what sets this model apart. It weighs less than half a pound (7.4 ounces, to be exact), is waterproof and shockproof with rubber, making it the perfect backup battery for your phone for multi-day hikes in the countryside. The built-in solar panel makes this a two-in-one device and you don’t have to invest in a separate panel system. Portability has a drawback: because the built-in solar panel is so compact, it takes about five hours to fully charge. Then you can fully charge an iPhone twice before it runs out.
The 100 Watt, 30,000 Watt power bank from RAVPower is a powerful portable battery – it can charge an iPhone 11 just under five times. It weighs just under three pounds, so you probably won’t just throw it in your purse or backpack, but it does have a 3-pin outlet to charge laptops, a USB-C port, and two USB-A ports. you can charge up to three devices at the same time. On the side are LEDs that indicate the battery life, so you don’t have to guess how much charge is left.