Okay, I searched Garmin and didn't find an answer to my issues, so here it goes with a new post.
I just received a Garmin 305 w/HRM & Cadence for fathers day. I finally got it all charged up and installed and took off on it's maiden voyage this morning. I live in WA state and I'm in my final stages of training for RAMROD, so I took the unit on a very long ride up to Paradise and found the following problems:
1) Battery life was only 7 hours and 44 minutes, do I have to purchase a portable charge for the road to cover very long rides 9-12 hours?
2) The unit had problems maintain a satellite feed while up near and in the Mt. Rainer Park (most likely trees), no big deal but the unit keep adding 10 miles onto my distance each time it synced up. The ride was only 124 miles, but my data says I did 176. What am I doing wrong, should I be turning off the GPS in areas that may have sync problems.
3) The unit also struggles with my speed figures, in one down hill stretch it had me going 63 mph. Now I consider myself a strong rider but even I must call foul on data like it was pulling in. Is there any way that I can have the speed and distance taken from the cadence unit instead of the GPS?
At this point, I'm highly disappointed in my new present. Any help you can offer would be great.