Viper 3303 - Manual (Page 41)

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Battery Information (1-way)
The 1way companion remote is powered by one 3V coin cell lithium
battery (PN CR-2032) that will last approximately one year under
normal use.
Low Battery Alerts
When disarming the system using a remote with a low battery the
siren will emit one additional chirp as an alert. If confirmation chirps
are programmed off, the system will still emit one chirp as an alert
when disarming.
Battery Replacement
Using a small 1.
flathead screwdriver,
insert into slot located
at the bottom of the
keypad and carefully
pry the front of the unit
open.
Turn both the unit 2.
front and circuit board
over, remove battery
from clip and replace
while observing the
correct polarity .
With the front and circuit board still turned over, turn back portion 3.
of unit onto both parts, reposition all parts and snap together.
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