2004 Skidoo ZX Series Service Manual, Page 448Get this manual
Section 09 ELECTRICAL SYSTEM Subsection 04 (BATTERY)
QUICK CHARGING BATTERY TYPE YTX20L-BS YTX24HL-BS TIME 50 minutes hour CHARGE 10 A
Battery Voltage below 11.5 V
Batteries with voltage below 11.5 requires special procedures to rechargeIn charging an overdischarged battery, its internal resistance may be too high to charge at normal charging voltageTherefore, it may be necessary to raise the voltage of the battery initially to 25 as maximum, and charge for approximately minutesIf the charger ammeter shows no change in current after minutes, you need new batteryCurrent flowing into the battery at high voltage can become excessiveMonitor amperage and adjust voltage as necessary to keep current at the battery's standard amp ratingCharge for approximately 20 hoursA32E2QA
A10 mm (38 in)
NOTE: Make sure not to cut wire strands while stripping the wireInstall the appropriate terminal on the wire according to the requirementRefer to appropriate parts catalog