GPS battery drain: how to reduce it

Written by Muneeb Rana · Last updated 26 October 2026

Quick answer: GPS battery drain comes mostly from the bright screen and continuous location updates, with map tiles and mobile data adding more. On long trips, plug in, lower brightness where safe, use a dark theme, close other location-heavy apps and download maps over Wi-Fi first. Heat also hurts batteries, so keep the phone out of direct sun.

TL;DR

• Screen is often the biggest drain.
• Continuous GPS adds steady drain.
• Charge on long drives.
• Dark themes help on OLED screens.
• Heat damages batteries.

Where the power goes

A speedometer keeps the screen on and the GNSS receiver active. Mapping adds tile downloads and rendering. Background apps using location add more. Exact numbers depend on the phone.

Reduce GPS battery drain

• Use a car charger or power bank
• Lower brightness except in HUD mode
• Choose a dark theme
• Close other navigation apps
• Use the Speed tab rather than the map when you only need speed

Battery saver trade-offs

Battery savers can throttle GPS, causing gaps in distance or a frozen reading. For tracking accuracy, prefer charging over saver modes. See speedometer app not working.

Heat

A phone on a sunny dashboard while charging and running GPS can get hot and may dim or pause. Shade it and use vent airflow carefully.

Bikes and hikes

Carry a power bank and keep the phone in a mount or chest pocket with sky view; pause when stopped for long.

What uses the power

The screen is usually the biggest consumer, followed by the GPS receiver and mobile data for maps. Apple's developer guidance notes that continuous high-accuracy location is energy-intensive. A speedometer has to keep both on, so a charger matters on long drives.

Heat

Charging, sun and GPS together can make a phone hot. Phones may dim the screen or pause charging when hot. Use a vent mount on cool settings or shade the phone.

A practical routine for long trips

For a long drive, start with a full charge and plug the phone into a car charger if you can. Use a dark theme and lower screen brightness to what you can read comfortably. Close other apps that use location in the background, such as fitness trackers you aren't using. On hot days, keep the phone out of direct sunlight on the dashboard: phones throttle charging and can shut down when they overheat, and heat is also hard on the battery over time. Apple's battery guidance notes that extreme temperatures affect performance. On a bike or hike, carry a small power bank rather than relying on the phone alone.

Speedometer PRO notes

The store listing describes the app as battery optimized; actual drain depends on device and settings.

Related: Speedometer app features · Speedometer app not working? Try these fixes · Speedometer offline: does it need data? · Speedometer themes and styles · Road trip tracker: log every leg · How to improve GPS signal · Speedometer app for iPhone · Speedometer app for Android

Get Speedometer PRO on Google Play · Download on the App Store · Set it up before you move; never handle your phone while driving.

Sources

• Speedometer PRO・MPH Tracker (Google Play listing): play.google.com (accessed 26 October 2026)
• Location and sensors (Android Developers): developer.android.com (accessed 26 October 2026)
• Location Services on iPhone (Apple Support): support.apple.com (accessed 26 October 2026)
• Assisted GNSS (Wikipedia): en.wikipedia.org (accessed 26 October 2026)
• Energy efficiency guide: location (Apple Developer): developer.apple.com (accessed 26 October 2026)