You don’t have to look far to find a Motorola Droid RAZR owners who didn’t feel a little cheated when the RAZR Maxx came out—same phone, same specs, and a substantially larger battery. In short, it’s everything the RAZR should have been. Well, there is now a method to fully convert your Droid RAZR into a Droid RAZR Maxx.
XDA Forum Member Faekie posted a tutorial that takes the internal hardware of the RAZR and transplants it into the housing of a RAZR Maxx. This includes its wonderful, gigantic battery. As it should be noted, this will void pretty much all warranties. And since you’ll be working with most of the components, it’s quite dangerous. Proceed at your own risk.
The process is going to take a long time. The Droid RAZR will have to be almost completely torn down and then rebuilt in the body of a RAZR Maxx. There is quite a bit that goes into the procedure. If you don’t believe, watch any XDA Unboxing video. Faekie has also provided a list of websites that will sell the appropriate RAZR Maxx parts, as well as a list of tools you’ll need. As some have pointed out, there are kits that let you do this, but this is a far less expensive method.