2004 Bombardier Quest/Traxter Series Shop Manual, Page 331Get this manual
Section 06 ELECTRICAL Subsection 04 (STARTING SYSTEM)
If the charging current is measurable before the end or at the end of about 10 hours, the battery is good and charging should be completed in the normal manner It is recommended that any battery recharged by this procedure be load tested prior to returning it to service
CHARGING OR MORE BATTERIES AT TIME
Connect all positive battery posts together and use charger with capacity (rated) equal to number of batteries to be charged-