Homemade Battery Booster for ForeRunner 205/305

A common complaint about the FR 305 is the short battery life. If you are really handy, here is one way to address that problem.

"Yes, it does make an already a big watch look down right ridiculous, but it doesn't bother me after a few minutes of wearing it" says Warren, the inventor. See the discussion at GarminF Yahoo Group

Should be no problem when mounted on a bike. This one by Brad Culberson is used only for re-charging. http://www.bradculberson.com/blog/?itemid=107