Mighty Max Battery ML4-6- 6 VOLT 4.5 AH SLA BATTERY- 6 PACK Rechargeable Sealed Lead Acid 645 Alarm System Batteries (6-Pack) in the Device Replacement Batteries department at Lowes.com
6V4.5AH 6V 4.5Ah Rechargeable SLA Battery by CHLORIDE
6V 4.5Ah SLA Battery | Jaycar Electronics
Amazon.com: PS-640 6V 4.5AH SLA BATTERY F1 FAST ON TAB TERMINALS - 2 Pack : Automotive
MIGHTY MAX BATTERY 6 -Volt 4.5 Ah Rechargeable F1 Terminal Sealed Lead Acid (SLA) Battery ML4-6 - The Home Depot