The New & Improved AngelSense battery can last up to 36 hours to 2 days (depending on usage) while still providing continuous monitoring and GPS updates using AngelSense’s Smart Power Management algorithms. It’s important to charge your device fully and we’ll send you notifications so you don’t forget.    We are always working on ways to extend the battery life, but safety is our top priority so we won’t compromise in this area. The current Battery Life allows us to continually provide the most accurate tracking information and gather as much information as possible from the device. This gives you access to Unique Lifesaving Features only available with AngelSense.    Battery life can be impacted by different factors and we have several tips to Preserve Battery Life.