it wasn’t too long after buying my garmin forerunner 201 back in 2005 that the charging pins started to become corroded from sweat. the pins are located under the watch and remain in contact with the skin, getting soaked with sweat during every run.
in 2008 i decided to buy another forerunner, the 305 this time because i wanted a heart-rate monitor as well. i seriously though garmin would have fixed that and put the charging pins on the side of the watch, but to my surprise when i got my new 305 i saw that they were on the bottom, touching the skin, just like the older model. sure enough, after as little as one year the pins on the 305 started to become corroded as well.
in order to prevent further corrosion i’m going to wear a a wrist band under the watch. (i tried covering the pins with band-aid, but it didn’t survive even one run and in the end the pins were wet regardless.)
i wonder if this is still a problem with the latest models.