5 of the best post-apocalyptic gadgets

Voltaic OffGrid solar backpack

£140, voltaicsystems.com
You'll want to keep your gadgets and gizmos charged – after all, just because it's the apocalypse, there's no reason why you can't listen to your tunes. Voltaic's OffGrid solar backpack features two 2W solar panels and a 3000mAh battery, with adaptors for five devices. It's got space for a 17in laptop, and you can even detach the solar panel and clip it to another surface if you don't want to lug the bag around.