Amazon.com: 3FM4.5 6 Volt 4.5 AmpH SLA Replacement Battery with F1 Terminal : Health & Household
Long Way LW-3FM4 6V 4.5Ah Sealed Lead Acid Battery - This is an AJC Brand Replacement
Mighty Max Battery Replaces cp0660 gp645 lcr6v4p hk-3fm4.5 wp4-6 Rechargeable Sealed Lead Acid 645 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
Amazon.com: 6V 4.5AH SLA Replacement Battery for Long Way LW-3FM4.5J : Health & Household