1999 Ski-Doo Factory Shop Manual Volume Two, Page 269Get this manual
Section 06 ELECTRICAL Subsection 04 (BATTERY)
7Disconnect battery charger
10Allow gas bubbles to escape by lightly shake battery
A17E0IB
8Test battery state of chargeUse hydrometer
A17E0HA
11Readjust electrolyte level
A17E0JA
1Specific gravity 1.260