Just got two new batteries, and my cabinet is already set up for two. (more capacity)
You can see the ammeter off to the right to make sure they're charging, along with a light to excite the alt. field, and a cigarette lighter for...um, lighting cigarettes, and the Black & Decker inverter in front.
The batteries also fit the truck and my 73 VW bug as well.
Also have the plug connector hooked up for a battery tender to keep them fully charged up when not in use.
Can hardly wait for the next outage!