Rolls-Royce Phantom key fob battery
2 of the 23 model years listed for the Rolls-Royce Phantom have a proven battery. The most common answer is CR2032. Rows below run oldest to newest; a year can appear twice when the car came with more than one kind of key.
- 2004-2016Unknown
Not confirmed yet
- 2017-2018Smart key
CR2032
FCC ID YG0HUF7059Two sites agree: uhs-hardware.com and mykeysupply.com (checked Nov 1, 2026)
Find CR2032 on Amazon - 2019-2024Unknown
Not confirmed yet
- 2025-2026Unknown
Not confirmed yet
Changing the battery
Smart key (push-button start)
- Most push-button fobs hide a metal backup key. Press or slide its catch and draw the key out first.
- The gap left by the metal key usually has a pry point. A slow twist with a thin flat tool (tape on the tip saves the plastic) opens the two halves.
- Before you take the old cell out, look at its face. Put the new cell in with the same side showing, and avoid touching both faces at once.
- Close the case until it clicks all the way round, put the metal key back, then try the buttons and a push-button start.
A CR2032 is 20 mm across and 3.2 mm thick. CR2032, CR2025 and CR2016 share the same width but not the same thickness, so a swap between them can leave a loose contact or a case that will not close.
Keep spare coin cells away from small children. A swallowed coin cell can burn the throat within hours; if it happens, go to an emergency room at once.