Mighty Max Battery ML75-12INT-12V 75AH, Internal Thread Terminal Rechargeable Sealed Lead Acid 12750 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
Rechargeable battery pack internal to older Kern MWA, MTA, MPE, MPD, MCB, MCC and MBC - Vetek
MIGHTY MAX BATTERY 12V 35AH SLA Internal Thread Battery Replaces Werker WKA12-35C -2 Pack MAX3936556 - The Home Depot