2005 Ski-Doo REV Series Shop Manual, Page 309Get this manual
Section 07 ELECTRICAL SYSTEM Subsection 02 (CHARGING SYSTEM)
WARNING
Should the battery casing be damaged, wear suitable pair of non-absorbent gloves when removing the battery by handInspect battery posts for security of mounting
Battery Charging WARNING
Always wear safety glasses and charge in ventilated areaNever charge or boost battery while installed on vehicleDo not open the sealed caps during chargingDo not place battery near open flameCAUTION: If battery becomes hot, stop charging and allow it to cool before continuingNOTE: Sealed VRLA batteries have an internal safety valveIf battery pressure increases due to overcharging, the valve opens to release excess pressure, preventing battery damagePerform BATTERY CHARGE TESTING above then proceed as described hereAn automatic charger is the fastest and most convenient way for error-proof chargingWhen using constant current charger, charge battery according to the chart belowBattery Voltage Below 12.8 and Above 11.5 V