This is a generic, equivalent one, 100% compatible. This Replacement rechargeable battery is designed to compatible with DSC Alexor, Tyco, WT4911B, WT4911BAT, ER34615M-T1 Outdoor Siren.

Specifications:
* Product Type: generic/equivalent
* Chemical Composition: Lithium Thionyl Chloride
Battery
* Voltage: 3.6V
* Capacity: 14.5Ah
* Condition: new, 1 Year Warranty!
* Use Integrated microchip which can prevent overcharge and over-discharge.
* No memory effect, batteries can be charged or discharged at any time without harm.

THESE ARE NOT A PLUG AND GO BATTERY. YOU MUST RESET YOUR SYSTEM IN ORDER FOR IT TO WORK!

The WT4911BATT is a D-size, 3.6 volt, Lithium Thionyl Chloride Battery used to power the WT4911 Two-Way Wireless Outdoor Siren.

Siren Alarm Battery – DSC Alexor, Tyco, WT4911B, WT4911BAT, ER34615M-T1