Small battery … or an org. that might help with a battery

AAA

Think of the three-letter rating for high-quality bonds or the group you might call when your car won’t start.

This clue plays on two meanings of "AAA." First, it refers to the small cylindrical battery size commonly used in remotes and gadgets. Second, it hints at the American Automobile Association (AAA), an organization that assists drivers—including those with dead car batteries. The wordplay ties both interpretations together neatly.