We can pretend that going to music festivals is our chance to unshackle ourselves from technology, or we can admit they're great opportunities to take Instagram photos.

For those in the latter camp, the Recharge 12000 is probably the most useful gadget you can invest in this summer: a USB battery charger that packs a powerful 1200mAh lithium polymer cell that will charge your iPhone from 0-100% six times over and even has a slot for your iPad if, for some strange reason, you've taken that too.

Lightweight and smartly designed (the cable slots into a ridge down the pack's side, meaning less scrambling in your rucksack in the dark), it fits comfortably into your pocket and gives you all the reassurance you need when it's midnight and you've lost all your mates after watching Adele on the main stage. 

recharge.uk.com