/ Utilities
Battery Saver

Battery Saver

by Lionel Duboeuf

App

Auto switch to preferred network when cellular data is on, and off

Install

About Battery Saver

This app allows to auto-switch to preferred network when cellular data is On and Off.

Also, allows to auto auto-toggle off cellular data when Wifi is On and/or when the screen is off.

Why this app have full access permission ?
For this app to work we run a service in background that listen and triggers some actions like what we would do manually with the indicator or system settings.


Contributors:
- Lothar Ketterer
Icon, splash screen by Daniel Frost

Recent Changes

v2.0.3:
- Fix issue with old service removal
v2.0.2:
- Fix ( hopefully ) app not running.

v2.0.1:
- Release for Noble
- Minor UI change

v1.8.0:
- Add option to auto-switch to default network when screen is locked ( Author: Lothar Ketterer )
- Move app description to a popup
- Allow to select the second SIM

Permissions

  • Connectivity
  • Full System Access

Community Built

This app has been released under the GNU GPL v3 license. It is developed in the open and you can review the source code.

Get involved

Info

  • Published Date

    Dec 15, 2023

  • Updated Date

    Oct 19, 2025

  • Current Version

    2.0.3

  • Total Downloads

    2,251

  • Latest Version Downloads

    493

  • Supported Architectures

    amd64, arm64, armhf

  • Translation Languages

    nl

Links

Reviews

ITwiki

Reviewed Feb 10, 2026 for version 2.0.3

Testing on FP5, installation worked

Eran Uzan

Reviewed Oct 19, 2025 for version 1.8.0 (older version)

Great app cut my batty usage in half

pekelinux-x

Reviewed Feb 7, 2025 for version 1.8.0 (older version)

Funciona en one plus nord n10. Ahorra bateria, cambia automatico de lte 4g a 2g cuando esta bloqueado. Gracias👍

Faisal Shahzad

Reviewed Jun 20, 2024 for version 1.6.0 (older version)

Works perfectly. For me it only worked on Sim 1 of Red mi Note 9 Pro. Somehow this app doesn't detect sim in Slot 2.

SANTANU CHAKRABORTY

Reviewed Jun 12, 2024 for version 1.6.0 (older version)

Unable to detect Sim card

Rüdiger Kupper

Reviewed Dec 20, 2023 for version 1.6.0 (older version)

Very useful!

rocco

Reviewed Dec 19, 2023 for version 1.6.0 (older version)

At start shows the message: 'No sim card detected'

Mou du GNU

Reviewed Dec 17, 2023 for version 1.6.0 (older version)

Great app. Saves battery but also time in settings to toggle everything on and off.

gaetan gourdin

Reviewed Dec 16, 2023 for version 1.6.0 (older version)

my battery llike this application

Daniel Frost

Reviewed Dec 15, 2023 for version 1.6.0 (older version)

Works great. Saves battery.