My 2 bike Batteries for my ZX6R came with a seperate set of tubes (6 or so, all joined together in a row) with liquid in them (think 95% this was acid), you basically removed a cover from the battery, flipped the tubes upside down and pressed them onto the top of the battery.
The tubes had foil covers on them, that punctured as they hit the top of the battery cells. They then drained down into the battery, sort of like you might imagine a lethal injection type thing to work on death row!
Then you charged the battery and away you go!
Was the battery in an OE box? Does it look like something is missing?
Si