RAVPower’s 25000mAh Solar Power Bank is great for the outdoors and it can be picked up for $21.99 shipped with promotional code: WEK4QJZL, today only, originally $45.99. You could either recharge it using sunlight, or by using microUSB, the latter of which would be much faster. In addition to the USB-C / USB charging ports, there’s even a built-in flashlight for emergency use. Product page – be sure to enter promotional code: WEK4QJZL during final checkout for the additional discount. Read more for a hands-on video and additional information.
The outer case was designed to be ultra rugged, as it’s made from durable ABS + PC material, making it waterproof and dustproof. There’s also an integrated carabiner hook, which can be snapped onto a backpack or bag for convenient transportation while charging.