How Long Should A House Alarm Battery Last. If the landlord is uncertain check the unit itself for date of manufacture. However this length of time will vary between different backup batteries and types of alarm systems.
The wide range is due to the fact that every alarm system is different with some not even having backup. - Alarm sensor battery. The Cost of Replacing Alarm Batteries.
How long will an alarm battery last.
Often referred to as SLA batteries theyre produced under brands like Casil Power Sonic Panasonic and EnerSys Genesis formerly Yuasa. During a power out your backup alarm battery should last from 24 to 48 hours however the size of the battery the age of the battery as well as the size of the alarm system can contribute to variations to this time period. Capacity is measured in kilowatt-hours kWh and can vary widely from 1 kWh or less to over 10 kWh. A backup battery will usually be able to keep an alarm system running for about 24 hours.
