AA Disposable Battery Pack Fits Brand Saflok Voltage - Batteries 6V DC Capacity - Batteries 3 112 mAh Battery Cross-Reference 884955 HTL-1 HTL-17 S54490 Fits Model IC S54490 SL2500 System 5000 VC Battery Chemistry Alkaline Height 2.75 in Width 2.06 in Depth 0.625 in Number of Cells - Battery 4 Max Operating Temp 130 Degrees F Min Operating Temp -4 Degrees F Terminal Type - Batteries Wire Leads Standards ANSI C18.4M ANSI Z-400.1 GHS IEC 62474 JAMP AIS