Batteries DSC

Keep compatible security devices powered with a D size 3.6 V lithium thionyl chloride (Li-SOCl2) battery built for long runtime and dependable performance in security sirens and sensors. The 14.5 Ah c more→apacity helps reduce battery change frequency in residential or commercial alarm setups, supporting stable operation during standby and alarm events. Compatible with DSC ER34615M-T1 / WT4911 / WT4911B / WT8911 / ALEXOR Wireless Outdoor Siren / WT4911BATT / ADT. When the security panel indicates a low battery, replace the cell and, after removing the old battery, wait at least 30 seconds before inserting the replacement. Note that WT4911 units may require depassivation before first use due to a passivation …