GPS Voice Navigation is one of the more popular navigation apps available for our Windows Phone. While GPS Voice Navigation has its popularity, as we see with other navigation apps, battery consumption can be an issue. It is easy to see these apps suck the life out of a battery making a car charger a necessity when using Windows Phone navigation apps.
An update was recently pushed out for GPS Voice Navigation that hopes to noticeable improve battery performance. The version 7.0 update adds Eco and Background modes that are designed to save up to fifty-percent of your Windows Phone battery life.