This camera was released in 2014. This camera has a separate camera unit and controller. In this video I will replace the battery on the controller unit.

There are still those selling new old stock, Casio EX-FR10: https://tokopedia.link/I6bIL5N3wEb

Due to old stock, batteries usually need to be replaced for both the camera unit and controller. Olympus LI-42B battery, Casio NP-80: https://tokopedia.link/xkJvroT3wEb

Additional note, when buying new old stock items is that the rubber material is usually brittle so it tears easily. On the Casio EX-FR10 the USB cover and micro SD card cover are made of rubber. Maybe it could be something to consider before buying.

0:00 intro
0:34 remove the rear cover of the controller unit
1:29 remove controller unit frame screws
2:46 remove controller unit frame
3:50 new battery
4:07 replace battery
4:42 put the controller frame back on
5:06 put the controller frame screws back in
6:17 put the back cover back on
7:14 turn on the controller unit
7:25 controller unit charging test
7:52 remove the rear cover of the camera assembly
9:15 camera unit battery
9:42 install rear cover of camera assembly
11:05 turn on the camera unit and controller