Amazon.com: Mighty Max Battery 12V 18AH Gel Replacement Battery for FM12180 : Health & Household
Amazon.com : ML18-12 - 12V 18AH Battery Replaces Pride Mobility Go-Go Elite Battery - 2 Pack : Health & Household
Mighty Max Battery ML18-12- 12 VOLT 18 AH SLA BATTERY- PACK OF 4 Rechargeable Sealed Lead Acid 12180 Backup Power Batteries (4-Pack) in the Device Replacement Batteries department at Lowes.com
Power-Sonic 12V/18AH Sealed Lead Acid Battery w/ NB Terminal
UPG 12V 18Ah UB12180 D5745 Sealed Lead Acid AGM Battery