How to test an alarm system main battery

With these system steps you can DIY on how to test and check your main control panel battery and also demonstrate a quick easy changeover

[@jsyphelps1965]

you should not go off the DC voltage of the battery. The way to tell if a battery is coming to end of life is by checking the current drawn in amps.

[@marioprzepiora]

Please correct or delete the video. Voltage is definitely not the correct way of testing a battery.