Panasonic Lumix S5 Mirrorless Camera - Manual (Page 38)

2. Getting Started
38
0 Ensure that no foreign objects are adhering to the inner side (cushion) of the
battery door.
0 Remove the battery after use.
(The battery will drain if left inserted in the camera for a long period of time.)
0 The battery becomes warm after use, during charging, and immediately after
charging.
The camera also becomes warm during use. This is not a malfunction.
0 Be careful when removing the battery as the battery will jump out.