BatteryPlex is your source for Door Lock Batteries. Keyless entry door lock batteries must be changed at various times during the year. Our batteries are reliable and long lasting. BatteryPlex carries replacement batteries for the leading door locks in the hotel and motel industry including Saflok, Ilko, Winfield, Yaletronics plus much more. We offer quantity volume discounts. Thank you for purchasing your Door Lock Batteries from BatteryPlex!