Mophie makes sure that you don't run out of juice
Mophie Juicepack XL. Price: €130. Rating: ****
It's not just Electric Picnic revellers that need emergency power-ups for their mobile devices. Bigger screens allied with more time spent on mobile devices means a gradual drain on our gadgets batteries.
Some back-up power sources give enough to tide you over for an hour or two. Mophie's Juicepack XL goes a lot further, giving you enough power to charge a smartphone twice or a large tablet once.
Happily, it is reasonably slim and light itself, meaning that it can fit snugly into most cases or bags without dragging everything down.