Amazon is currently offering the Hiluckey 25000mAh Outdoor Portable Power Bank with 4 Solar Panels for $31.95. Without applying any special discount code at the checkout you save directly $25.04 on the original price.
The Hiluckey solar power bank works with nearly all 5V devices, including smartphones and tablets. It has a built-in 25000mAh Li-polymer battery that can charge your phone 8-10 times or your tablet 3-4 times, giving you an average of 9 days of use per charge.
With four foldable high-efficiency solar panels, the solar charger can deliver up to 1A of the input current in the sun, which is 4 to 6 times faster than other solar chargers. You may also charge it using a micro USB connection.
Dual 2.1A USB ports allow you to charge two devices at the same time at 2.1A fast speed. To pair the best output, auto-detect the current of your devices. Dust, shock, and waterproof design, built-in LED flashlight with SOS function, ideal for outdoor emergencies.
Waterproof, shockproof, and dust-proof construction makes it ideal for camping, trekking, and other outdoor activities. The flashlight has nine LEDs and three modes (regular, SOS, and strobe). It can be used for night walking or in an emergency.