TruePower IV Pro 3100 mAh Mobile Charger for iPhone/iPod
What I needed: 1-2 charges, something that didn't obsolete all sync cords and stands, easy removal and no additional cords or charging blocks.  So it succeeded in all of these.      This case is a bit of a frankenstein but it does as advertised to a point.    I  get about 1.5 charges  but the ability to charge additional devices might be a plus for some.   It is quite thick but isn't uncomfortable despite it's appearance. I do not keep my phone in it all the time but as needed.  I like using the Apple stand