The Go Travel Slim Power Bank is an Li-ion battery powered 2300mAH emergency phone charger that claims to be able to fully recharge your smart phone in 1.5 hours. We have tested out so many of the power banks at GadgetHead and all too often we find that they just don’t live up to their claims but will the Go Travel Slim be any different? Starting with general aesthetics the Slim is a pretty little power bank, available in blue or red it has a nice matt finish that makes it rather tactile, at only 62g it is extremely light and with dimensions W85mm x H54mm x D7mm it is ultra-compact, the website suggests it is like a credit card and can live in your wallet but seeing as it is thicker than all 6 of the cards in mine it very much depends on the size of your wallet. It comes with a USB/Micro USB cable but you will need a compatible plug to be able to charge it, it says on the box it takes three hours to fully charge the Slim Power Bank and we found that to be true. The Slim has a light system to let you know how it’s coming on by flashing a little blue light, it starts off with one flash, then two and so on all the way to a steady beam of blue light that indicates that it is fully charged. I found it annoying that with such a short cable and the light next to the USB port it can be difficult to see the lights when it is plugged into the mains. Once fully charged you simply switch the cable around and plug it into your phone (compatible with iPhone leads as well) and the flashing blue light works in reverse order to tell you how much charge is left in it. Go Travel suggests you can charge and talk at the same time so we tested it out with my Samsung S6 whilst it was switched on and I was texting, in 1hr 5mins the power pack was dead and had charged my phone 56%, this would be useful in an emergency but certainly doesn’t stand up to the claims made on the packaging. For £18 it is an ok power bank, it takes a long time to charge and without plugging it in there is no way of telling how much charge is left, in my opinion it is too big for your wallet and too small to be of much assistance. RRP £17.99

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2 out of 5

Pros

Compact

Tactile

Cable included

Good Value

Cons

Only charged phone to 56% off a full charge

No iOS cable included

Indicator light in a bad location