Historical clue formulations

• AC___ (G.M. subsidiary) — 2025-07-13
• Big name in batteries — 2013-11-17
• Big name in car batteries — 2013-01-05
• Longtime name in auto parts — 2010-01-22
• Battery brand — 2009-05-04
• Battery brand — 2004-07-11
• Battery brand — 1998-02-26