How To Change Fire Alarm Battery 9v. Can be wirelessly interconnected with the addition of the Red RF wireless base. Look at your 9V battery to identify the positive and negative - contacts similar to what is shown in the image.
Interconnectable with up to 40 Red smoke alarms and includes a testhush button and visual indicators. Remove the old batteries. A 10-year service life makes the Ultralife lithium 9-volt battery the choice for major smoke alarm manufacturers for their premium lines of 10-year ionization-type smoke alarms.
A replacement costs between 50 and 80Smoke Alarm Battery.
Green LED should glow to show Mains Power present. Press and hold the TestReset button for 10 seconds to fully discharge the detector. This brand of smoke alarms are a little bit trickier than usual to replace the battery in. The panel controls the alarm and forms a crucial part of the system that can cost up to 800.
