When you pick a power bank, you also want to choose the fastest charging your device supports, if that matters to you.

Besides his journalistic endeavors, he helms the Charger Harbor YouTube channel, where he extends his tech insights to a broader audience. We expect this competition will heat up next year as more power bank makers catch up and make faster charging batteries. Here's our quick guide – and you can read more in-depth verdicts on each power bank by following the links. Multiple Smart Protection System: We use high quality A-Class Lithium polymer batteries, together with multiple smart protection technology, to keep your devices safe from over-charging, over-voltage, over-current, and short circuit. There’s one negative side effect of the power capacity display, it’s that it uses quite a bit of power, and as a result that can burn into the power capacity and there’s no way to turn it off during charging.Below, you'll find everything from the very small to the very large; from the wired to the wireless; from innovative bricks to forms you wouldn't expect. option is more for Android users, but anyone looking for such a power bank has found a good product here. There are MagSafe-friendly cases for most phones from Samsung, Google, and more, and those will let you use MagSafe batteries for charging and other MagSafe accessories. Why we like it: The best looking of the lot – and capable of providing a MacBook Pro with a 40pc power boost. There are plenty of combination power bank and some other device, but the Tylt Bottle 2 actually makes sense because we're usually carrying an insulated water bottle anyway, so we might as well screw a battery onto the bottom.

The digital display of the additional battery is amazingly accurate and shows the remaining charge of the battery. You need fast power: This is a very slow charger, whether wired or wireless, so it's better for casual charging while you sip your water and read a book. However, the most important thing was the numeric display showing the power capacity, sure it’s easier to tell the power capacity more accurately but power capacity is lowered with the usage of it. There isn't quite enough power in the Otterbox 2-in-1 power bank to recharge a phone fully, but you're welcome to try. The power bank came in handy when trying to locate a friend to meet for a swim on Hampstead Heath (my phone was on its last legs – isn't it always?In his spare time he rides electric unicycles, takes photos (preferably with the iPhone, of course), climbs around in the Hessian mountains or hikes with the family.

The technology is rapidly evolving: check out the Anker PowerPort Solar Lite), Mobile Solar Chargers, Voltaic and Solar Technology to find out more. Our battery bank fits for almost all USB-powered devices with built-in LED flashlight for dark or low-light.

It's a charming look though the plastic case can't help but feel a little less premium than some of the other devices on this list. Opted for this one, very happy with the capacity, able to charge phones, tablets etc and still on 40% charge. If it falls on a hard surface, you can assume that the plastic will chip off and there will be permanent damage. The power bank that I tested in the last few days is quite a chunk: the iMuto additional battery weighs a whole 490 grams and is therefore certainly not the product of choice if you are looking for something to use your iPhone again on a hike to charge.