What kind of battery does a vista alarm panel use?
Emily Sparks
Published Feb 21, 2026
What kind of battery does a vista alarm panel use?
A Vista P-Series Alarm Panel uses a 12-Volt Lead-Acid Battery. When AC power is present, the panel provides a trickle charge to the battery. When AC power is lost, the battery then takes over to provide the necessary current to power the panel until AC power is returned.
How to change the master code on a Honeywell Vista 20p?
You can change the Master Code on a Honeywell VISTA 20P by entering the appropriate command on the keypad. To do this, you will need to provide the current Master Code for the system.
How do I clear a low battery in my Honeywell Vista P.?
To exit the walk-test, enter the Installer Code, Master Code, or Partition Master Code + Off [1]. The panel will exit test mode on its own after four (4) hours if the user forgets to exit. If the battery passed the load test, the low battery condition will clear when test mode is exited.
A Vista P-Series Alarm Panel uses a 12-Volt Lead-Acid Battery. When AC power is present, the panel provides a trickle charge to the battery. When AC power is lost, the battery then takes over to provide the necessary current to power the panel until AC power is returned.
To exit the walk-test, enter the Installer Code, Master Code, or Partition Master Code + Off [1]. The panel will exit test mode on its own after four (4) hours if the user forgets to exit. If the battery passed the load test, the low battery condition will clear when test mode is exited.
How long does an AC panel battery last?
When AC power is present, the panel provides a trickle charge to the battery. When AC power is lost, the battery then takes over to provide the necessary current to power the panel until AC power is returned. Depending on how often the panel must run on battery power, the panel’s battery will last around three (3) to five (5) years.
What happens if you leave the battery plugged in for too long?
Most converters do not have this capability unless you have a very expensive 2000 watt inverter or take the batteries out and use a professional multi-stage charger! Just leaving it plugged in does nothing more than topping them off and letting sulphur collect on the plates and limit the amount of energy storage.