A portable solar charger sounds great, especially for when you can boost your phone’s battery in daytime and you’re close to a window. That’s what the Port Solar Charger does; it features a suction cup that allows you to stick it to any window and connects to your gadget via the USB port.
The charger is lightweight and small enough so you can carry it inside your bag and also has 1000 mAh battery capacity to offer about 65% charge for a smartphone, which should be enough for emergency phone calls or last minute web browsing.
The Port Solar Charger recharges via the integrated USB cable and its five blue LED lights indicate the remaining battery level. You can get one from Firebox, for £49.99.