"This company makes external batteries for mobile devices like the Blackberry, iPhone, iPod, etc. I have an iPhone. I bought the 5000ma model, which can charge my phone fully 4 times! It is a lithium polymer type, which is the latest technology. The battery is a little smaller than my iPhone and the case appears to be well made and attractive (it comes in several colors), with good solid finishing.

It's perfect on a long plane ride when you want to use your phone to watch movies, play games, or listen to music and still leave the plane with a full charge.

Customer service appears to be excellent. I have emailed with John, their US rep, several times with questions, and he has always responded within a few hours.

The battery has worked perfectly so far, (I've had it about a month). It comes with cables and adaptors, and an AC wall charger, which are specific to the device you are charging. The battery can also charge itself from a USB port on your computer.

I would recommend this product and company to others. These batteries have the largest charging capacity I have found so far, while still being small, lightweight, and easy to use. They're the same price as many similar batteries, but with two to three times the charging capability of other external batteries I have seen."