replacement battery
nounUK /rɪˈpleɪsmənt ˈbætəri/
US /rɪˈpleɪsmənt ˈbætəri/
A new battery you put in a toy or device when the old one stops working.
Dad bought a replacement battery for my remote-control car.
RELATED WORDS
OTHER MEANINGS
2. A battery sold to take the place of a worn-out or broken one in a phone or laptop.
The shop sells replacement batteries for most phone models.
3. An extra battery you keep ready so you can swap it in quickly.
She packed a replacement battery for her camera before the trip.
4. A battery made to fit a specific model as an official or compatible part.
Make sure the replacement battery matches your device's model number.