DeWalt Tools, Replacement Battery question?

Turns out that i didn't tell you guys the truth, when i posted the ad.
Forgot that i am starting out with two lithium-ion batteries.
I have one on the vacuum cleaner, that's in the closet, and not on any of the shelving in the garage.
Well, anyway, I'm happy to be getting a third battery, for all the tools, that i have, along with the plug in regular electric ones.