2004 Skidoo ZX Series Service Manual, Page 447Get this manual
Section 09 ELECTRICAL SYSTEM Subsection 04 (BATTERY)
Remove corrosion from battery cable terminals and battery posts using firm wire brushBattery top should be cleaned by soft brush and any grease-cutting soap or baking soda solution
INSPECTION
Visually inspect battery casing for cracks, leaks or other possible damageDiscoloration, warping or raised top, indicates that battery has overheated or been overchargedIf casting is damaged, replace battery and thoroughly clean battery tray and close area with water and baking soda
Clean battery casing using solution of baking soda and waterRinse battery with clear water and dry well using clean clothCharge the battery every month if stored at temperature below 15C (60F)Charge the battery every two week if stored at temperature above 15C (60F)
ACTIVATION OF NEW BATTERY
Refer to the instructions provided with the battery
WARNING