【Perfect Compatibility】:Specifically designed for DSC ER34615M-T1, WT4911, WT4911B, WT8911, and ALEXOR wireless outdoor sirens (WT4911BATT/ADT). Ensures seamless performance and prevents premature battery failure
【Unmatched Energy & Longevity】:15.5Ah high-capacity lithium thionyl chloride (Li-SOCl₂) battery provides reliable, consistent power. Ultra-low self-discharge rate (<2%/year) and wide operating temperature range (-55°C to +85°C) for year-round use
【Easy Installation with Depassivation Process】:Follow simple steps to activate the battery: Hold the tamper switch, plug in the battery, and wait for 30 seconds of strobe patterns.If activation doesn’t complete within 30 minutes, the unit will beep once every 5 seconds—simply replace the battery for optimal performance
【Peace of Mind Warranty & Quality】:200-day hassle-free warranty ensures you’re protected against defects. This battery are rigorously tested for safety and reliability, designed to start working immediately after installation
【Critical Precautions】:Wait ≥30 seconds before replacing the battery to avoid power loss.Never short-circuit, over-discharge, or expose to extreme temperatures. Dispose of Waste batteries responsibly
