POWERSONIC 6V 3.2AH SLA BATTERY - NCE Empowering Safety
BW 6v 4.5ah SLA Battery (Emergency Lights and Universal Use) – Battery World
Mighty Max Battery ML1.3-6 6V 1.3AH SLA Battery F1 Terminal- 3pk Rechargeable Sealed Lead Acid 613 Alarm System Batteries (2-Pack) in the Device Replacement Batteries department at Lowes.com
6V 1.2Ah SLA Battery | tools.com
Duracell Ultra 6V 5AH AGM SLA Battery with F1 Terminals - RainWise