Ademco Vista-20SE/Vista-20HWSE
Low Battery Warning
When the keypad displays BAT with no zone number or SYSTEM LO BAT, this indicates that the system battery needs to
recharge. If AC power is out, the security system needs to recharge. If AC power is out, the security system may shut
down once the battery is below the operating level. When AC power is restored, the panel recharges the battery. If the
warning exists more than 24-48 hours after AC power is restored, it is time to replace it.
Stop Chirping or Beeping
To silence trouble beeps due to a BAT or SYSTEM LO BAT alert, press the OFF key. The low battery condition will remain
on until the battery is recharged or replaced.
Obtaining New Battery
Order your system battery under My Alarm > Order Equipment > Replacement Batteries
or purchase one at a local battery supply store. When purchasing a replacement battery
from a battery retailer or battery supply store, it is helpful to take the old one to ensure
the replacement battery is the same voltage and amperage, as well as the same size. You
can also call ADT Customer Care to order your battery.
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