For fully stationary use, you could replace the battery with a voltage regulator + supercap combo like in this video: https://youtu.be/YfvTjQ9MCwY?t=856 https:/

For fully stationary use, you could replace the battery with a voltage regulator + supercap combo like in this video: https://youtu.be/YfvTjQ9MCwY?t=856 https://youtu.be/YfvTjQ9MCwY?t=856 This ensures that the phone does not get confused when powered straight from the adapter with the battery removed (provided it is even possible to do so).