Locate the metal security box or cabinet enclosure with backup battery inside If this battery goes bad or stops recharging, you will likely experience some of the symptoms of a bad battery described above. This battery is vital to the operation of the system as it is used to keep the system powered up and working for several hours in the event of a power failure. If you have a hard-wired or hybrid (wired and wireless) system, then you should have a metal security box or cabinet enclosure that contains a rectangular battery. Alarm System Backup Battery Replacement вЂ“ Information System does not work for at least 8 hours (or as long as your system should last) when using battery power only.Дepending on your particular alarm system, you may also have wireless sensors that require batteries as well, so it may not be clear exactly which battery needs to be replaced.Keypads do not work while power is out.You have to reset your alarm systemвЂ™s time/date anytime the power is lost and restored to clear the the trouble light or icon.Alarm goes off when power is lost and restored such as during a electrical storm.If your alarm systemвЂ™s backup battery is completely dead or goes bad, you may experience some of the following symptoms: It is important to take care of a low battery notification promptly by replacing it so that the battery does not go completely dead and cause bad battery related issues. When your alarm systemвЂ™s backup battery gets too weak or is unable to recharge and needs to be replaced, your system may send you an alert you by beeping, displaying a low battery indicator or вЂLo BatвЂ™ message on the keypad display.

Centex hometeam security key pad