2009 Suzuki 400 LTZ Quad Sport Service Manual, Page 283Get this manual
1J-10 Charging System: 2) Remove the caps (2) from the electrolyte containerNOTE Do not remove or pierce the sealed areas "B" of the electrolyte container After filling the electrolyte completely, use the removed cap (2) as sealing caps of battery-filler holes5) Make sure that air bubbles (4) rise to the top of each electrolyte container, and leave in this position for about more than 20 minutes 2 "B"
I649G11A0042-03
NOTE If no air bubbles come out from filler port, tap the bottom of the electrolyte container two or three timesNever remove the container from the battery