Useful for charging a phone or tablet on the move, but expensive - is the Sandberg PowerBank 12000 worth the money?
iHarbort offers excellent-value power banks for phones and tablets, and its 10,000mAh power bank is a steal at £13.99
It's one of the best all-rounders we've found, and at a tiny £7.50 you will not be disappointed with the iHarbort MS024 Power Bank
Imneed's 3200mAh External Battery is a pocket-sized emergency charger for your phone. We see how it fares in our power bank review
Winner of a Red-dot design award, the Emie Power Blade is much more than just a good-looking charger for your phone or tablet
We've seen many, many power banks come into the PC Advisor lab, but the Emie Power Note stands out for its excellent design
A great companion for the OnePlus One - or any phone - this portable charger will keep it going all day, all night and beyond
Vinsic's Power Bank is an excellent-value and high-capacity portable charger for your phone and tablet
Small and light enough to fit in a pocket, with enough power to potentially offer two fast charges for your phone
Sandberg's Powerbank 6000 is a useful, if basic, emergency charger for your phone or tablet when you're away from the mains
These upgraded, higher-capacity power banks from Intocircuit are better than ever, offering great value charging on the go
Mophie Juice Packs now available for the Apple iPhone 6 and iPhone 6 Plus
EasyAcc's PowerBank PB18000 will charge your iPhone 6 seven times, and it'll do it fast
The first power bank to charge over a Lightning connection, the Aukey PB-N30 is a must-have accessory for iPhone owners
Now this what we call a gadget: this pocketable power bank from Aukey charges your phone and lights your fags
The fastest way to charge multiple phones, tablets and USB devices
The best way to charge all your gadgets quickly, easily and simultaneously
Power charger for off-grid adventurers
iClever 6-Port USB Travel Wall Charger review
Portable power for your phone or tablet that comes at a good price