Juice defender or 2x Battery?

I have not tried Juice Defender so no comment there, however, I will say that 2x Battery does provide an improvement at least in the case I have tried. I installed 2x after reading the earlier posts and used it yesterday in an application that is not radio intensive but is GPS intensive (a golf GPS program). I use this program a lot so I am very familiar with the battery usage. Prior to using 2x, with a full charge leaving home, using the GPS program for ~4 hours plus I would usually have 46-47% battery left. Yesterday under the same conditions I ended with 57%, so a noticeable and appreciated increase was achieved with 2x. I normally turn off WiFi, Bluetooth and auto refresh when using the golf program to conserve battery and did the same so everything was equal.

Will run the test a few more times and if any different results will post here.