Originally Posted by r2adv
What are people using to power the phone? When you run a long time with the display on and location services functioning it kills the battery at a good clip.
For my HTC phone I took a car charger apart to save space. Wrapped it in heat shrink and added an SAE plug to go in where my GPS can plug in.
Be aware, if you have an enclosed case that the charging and bright sun on it can cause it to get very hot when charging. That is bad for the battery.