[EricH]

Specify the type: Exide or the new ones? If they're Exide ES-whatever, reinspect. If, however, they are identical to the ones in the kit, they're perfectly legal. Note: if the tree is mixed, only the current batteries are legal. All others are not.

By the way, at this point, this is practically a "why is this a question at all" YMTC. It's been answered, I believe. You tell us which batteries and we'll call it.