I’m not sure what the battery life on the Garmin Forerunner 305 is supposed to be but mine only lasts about 6.5 hours now. This is no good if you plan to run longer and you want a pretty map and all the graphs that come with it.
Today I got this recharger that will charge it on the go with either 2 x AA or 2 x AAA batteries! You can also recharge your batteries with it from the computer and it comes with lots of adapter thingies to make it useful for your phone, camera, or whatever else you have that needs charging.
The only problem with running a long way is I’ve read that Sporttracks wont upload files longer than 18 or 20 hours or something like that. I’m not sure but there may also be a limit on the length of time the Garmin will record. I plan to hit the lap button when I plug the charger in so that hopefully I can split the laps for upload and stick em back together.
Anyone have any tips on this?