Duracell Power bank 20100 mAh, Portable Charger with Fast Charge Technology IN / OUT

Product Information

I was impressed by this product in other ways. It's 'smart': an efficient protection system automatically identifies the needs of the device plugged in, and tweaks the level of current supplied to optimal (meaning the safest and speediest). Your phone or tablet should charge speedily (I certainly found mine did) and it will be protected from the triple threat of over-voltage, over-charging or short circuiting. There are two payoff to all this. The first is that the product is more complicated to use than the Power Station or Belkin – you need to take care to get the right cable in the right slot (an exhaustive instruction manual makes this easy, if somewhat time consuming, to learn).

Duracell 20,100 mAh Fast Charge Portable Power Bank Duracell 20,100 mAh Fast Charge Portable Power Bank

Meanwhile, lithium-sulphur batteries might be a more practical stepping stone: they’re less expensive to make, weigh less and store almost twice the energy of lithium-ion batteries, and are better for the environment. However, sulphur is a poor electrical conductor, so the technology still needs developing. Running out of juice, and therefore being unable to access Google Maps, is no longer a viable excuse for standing someone up or missing a conference call. Why we like it: It's colourful, compact, powerful enough to fuel a long weekend away, and very reasonably priced. Good for teens and their parents.

784/6762

Try to avoid letting the battery drop to 20 per cent. This is a bit of a Catch-22 situation, but it is far easier to charge up a phone when it has between 20 and 80 per cent battery. So I'm in search for a power bank of 20000mAh with fast phone charging. Lightest weight in it's 20000mAh category too.

DURACELL 20000 mAh Power Bank (22.5 W, Fast Charging) DURACELL 20000 mAh Power Bank (22.5 W, Fast Charging)

Versatility is also worth considering – for example, can you use the charger for multiple devices? What devices is it compatible with? Does it offer pass-through charging (which means you can charge the bank itself, while using it to charge a connected device)? It looks metallic, but the case is actually made of plastic polycarbonate, which houses the lightweight lithium-ion polymer battery cells that power it. Again, it has two USB ports, one that has a 2.4A amperage, and one 2A, and four LED indicators that show the battery level. 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. Still it feels sturdy and has a nice bright set of lights on the side so you can always see how much power you've got left in it.Why we like it: The Daddy of the power banks we reviewed. Powerful, well designed, not too heavy, and brilliantly priced. It takes around three hours to charge from empty (considerably less time than the Juice Power Station), and once charged, Belkin says its tests show that charge will not diminish by more than 50pc even after a year’s time left dormant – all very impressive, and useful. Why we like it: The best looking of the lot – and capable of providing a MacBook Pro with a 40pc power boost. So, brains and brawn. Switching off data usage for apps you don't need will save your battery as well as your data usage.