Stanley USB4 4 in 1 Back Up Power Supply and Charger

I bought this on an Amazon Lightning Deal so I got a slight discount on the price you probably see now. I also own the XtremeMac InCharge Portable rechargeable battery pack with built-in wall charger for iPhone, iPad & iPod IPU-ICP-11 which I got a long time ago at a much cheaper price. This Stanley device is much worse than the XtremeMac charger.

This charger doesn't last long. It won't even last long enough to fully charge my iPhone 4S. It also makes a high pitch sound while plugged in to the wall.

The benefits to it are that the electrical plugs fold into the back of the product for slimmer storage. It also includes a built in light which is not powerful at all. It is small in size which is nice too.

Overall, I would not recommend this product. I'd suggest spending a little more to get one with a longer battery life.

This little charger has folding prongs and is perfect for travel. The USB ports do not supply enough current to charge an iPad, unfortunately, but it will charge an iPhone 4 and a bluetooth headset simultaneously without problems.

It also contains a battery that charges when plugged into a 110/240AC outlet (it is world-compatible) or into a USB port via the special cable provided. Here I think Stanley should have instead fitted the device with a standard microUSB port; if you lose the cable, it won't be easy to replace. Then again, most people will charge the battery through the mains, so it's not a major issue.

The top of the device features two flat buttons, one to turn on the power or check the battery levels (a 5-bar green LED display indicates the charge), and the other turns on a bright white LED located between the two USB ports.

Unfortunately, the battery capacity could be better; in my informal tests, it was only able to refill my iPhone 4 by about 70 to 75%. Still, that's usually all you need to get you out of a pickle, but twice that capacity would make it a really great device.

PROS

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small size

folding prongs

charges two devices at once

built-in battery

built-in flashlight

CONS

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charging through USB requires non-standard cable (supplied)

battery capacity is not that great

makes a light buzzing sound when plugged in

Should you buy this? I have to say that despite owning a large array of USB battery/charger devices, I still toss this one in my travel bag because it's so convenient and light. Perfect to give your phone a boost during a long plane flight, and once you get to your hotel, you can use it as a charger -and the flashlight comes in handy.

If your emphasis is on convenience vs. capacity, this is a great buy. If you need the largest possible capacity, you're better off with a USB battery that charges with an external charger.

Buy Stanley USB4 4 in 1 Back Up Power Supply and Charger Now

I got this as a present for my sister as she always complains about the battery life of her iPhonehavent we all heard this gripe from a person or two? She carries it everywhere and I havent heard her complain about her battery since!

Read Best Reviews of Stanley USB4 4 in 1 Back Up Power Supply and Charger Here

Ocassionally we forget to charge our phone and keep this in the car. It is great to have when you realize you have a call to make and you are out of power.

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As of 12/28/12, the capacity of this backup battery is not listed in the description, so I wanted to be sure that it was available to potential buyers. On the outside of the carton, it lists a capacity of 1000 mAh not enough to fully charge most smartphones. This is a low capacity relative to the size and price of the device. The variety of charging options is a plus, and it's light, but unless you only intend to charge low capacity batteries, it's nowhere near enough to offset the negatives.

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