Door Lock Battery Pack Fits Brand BEST Voltage - Batteries 6V DC Capacity - Batteries 2 800 mAh Battery Cross-Reference C83511 Fits Model B.A.S.I.S. G Series Stand-Alone Card Readers and Keypads B.A.S.I.S. V Series Stand-Alone Card Readers and Keypads EZ Series Keypad Locks Battery Chemistry Alkaline Height 2 in Width 0.56 in Depth 0.56 in Number of Cells - Battery 4 Max Operating Temp 120 Degrees F Min Operating Temp 32 Degrees F Terminal Type - Batteries Wire Leads