Mighty Max Battery 6-Volt 7 Ah Sealed Lead Acid Rechargeable Battery Rechargeable Sealed Lead Acid 670 Backup Power Batteries (4-Pack) in the Device Replacement Batteries department at Lowes.com
A 6 Volt Battery FAQ - TurboFuture
Parmak 6 Volt Gel Battery | QC Supply
TennantTrue 6 Volt Wet Trojan Battery | PN: 1227180
Mule - Lead-Acid, Polarized Quick-Disconnect Tab Terminal, 6 Volt, 14 Amp, Lead Rechargeable Battery - 02333730 - MSC Industrial Supply