Its high-capacity battery means that it gets as many charges as many of the other solar power banks, but with a design of just one solar panel instead of 3 or 4. You should definitely use the solar charging feature as a backup. Or, you can use it with the intention of topping off the battery. But if that is enough for you, then this device is perfect.It consists of a hard rubber. It has ribbing to make it easy to grip. The solar panel remains exposed, but the edges are raised to resist again cracking on the panel. It is also waterproof and dust proof. It includes caps to protect the USB ports.On the top edge of the solar power bank. You can activate it with the click of a button. It has three modes: strong, SOS and strobe. It is conveniently right on the edge.