I am currently not confident on the power results that my quarq is giving me.
I have decided to check the value pre and post ride value given by my garmin 910xt. (before to do this study I have put a new battery)
The results are the following so far:
date pre-ride post ride length of ride outside condition comments
05/01/13 -98 -111 1h30 sunny 26C
06/01/13 -93 -110 4h30 sunny 26C
09/01/13 -93 -803(!!!) 1h00 sunny 25C the data started to be wrong after 25 mins
12/01/13 44 -95 2h20 sunny 29C
13/01/13 9 -94 4h00 sunny 22C
Has someone experience such a big variation with it quarq? If yes did you send it back to quarq under the warranty?