Forerunner 305 Battery Life

[JimF22003]

I have the Forerunner 305, which I've had over a year now. It seems the battery doesn't stay charged as long as it used to. I start getting "low battery" warnings at about 5.5 hours, and it dies after 6.5 hours or so. That's about how long it takes me to do a hilly century, so that's not great.

Is there any way to fix this? It doesn't look like the battery is replaceable.

[tnt71]

I would contact Garmin. I have that unit and have had it for over 2 years. In the spring and summer I use it 3 hours a day, 2-5 days a week. I still get 13 hours out of a full charge and generally only have to charge it once per week.

[JimF22003]

Thanks, I guess I'll have to do that. The battery life is definitely getting shorter. I usually let it trickle charge through the USB cable. I wonder if a direct charge from the wall would make a difference?

Maybe it's a sign I need a 705 :)