Pros Easy to use, charge overnight or (hint) hook up to a mini usb car charger and charge away while driving. Works like a charm.
Cons No secure connection, i.e. clicking in. Otherwise none.
Summary Buy It, Buy It, Buy It. You will not be disappointed in this product and just when the 20% warning comes on with your iPhone, plug away and keep on surfing...or talking if you do that anymore. ;-)
Pros metal finish
Cons capacity is too small, it can not give iPhone/iPhone 3G a full charge, I would rather order the high capacity one from www.wirelessinput.com, still heavy, did not fit iPhone well.
Summary The one from www.wirelessinput.com doubled the power, with same price.
Pros Compact, Stores Easily, Fast Charging
Cons Wish it came in white
Summary I had already purchased a couple of other brands while a few of my coworkers purchased and loved this battery so I bought one and they were right. It is the better backup choice. I use it to top off my iPhone on late afternoons when the iPhone starts to dwindle on its own power supply. I get a fairly quick boost and am good to go for the evening without messy wires. I like this RichardoSolo so much that I gave my two other back up batteries an early retirement in the desk drawer.