This weekend we drove from Northern Virginia to Ithaca, NY. I left the house with a fully charged Droid. Put the Droid in the dock and plugged in the charger. Then setup up the Navigation to our destination. It was about 60 degrees out with very little sun. After 1.5-2 hours, I noticed that the battery was down to 60%. A 40% drop in charge, with the charger plugged in. I am using the Motorola charger that came with the dock. But is a 40% loss within 2 hours normal, or could there be something wrong with the phone? I have noticed considerable drops in battery % when using navigation in several cars with my phone, also using either the Motorola charger or a charger purchased from Best Buy. I've seen other threads and it seems that people have claimed it has something to do with trying to use the Navigation while in the dock and having the Droid in direct sunlight. The entire trip there was very little sun, maybe 5 minutes of actual sunlight, the majority of the time on the road it was quite cloudy. No other apps were running. I took the phone of the charger in my house, put it in the dock and started only the Navigation.