Costway SP37675 Manual Del Usuario página 20

4.Battery
This monitor uses 2 batteries
If the display screen is displayed incorrectly, reinstall the battery, and the
effect will be better. When replacing the battery, all records will be
deleted.
To replace the battery, press the button at the bottom of the LED box to
open the cover(See Figure 1), then press the button in the back to open
the battery case (see Figure 2), and you can change the battery now.
Pull the button
Figure 1
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