

Changing Panel Backup Batteries:
Hard Wired Systems Backup Batteries (Including the DSC
1550, 1555, 4010, 4020, 5010, the Ademco Vista 15, 20, 40, 50 and the First
Alert 142, 148, 162.):
- Locate the main control panel, usually in a closet or
build-up area.
- Open the cover.
- Remove the leads from the old battery.
- Remove old battery and replace with new battery.
- Attach the red lead to the positive terminal (+ or red) of
battery, attach black lead to the negative terminal (- or black) of the
battery.
- Close cover.
- Take your old battery to the nearest recycling centre.