2005 Ski-Doo Tundra, Skandic, Expedition Shop Manual, Page 458Get this manual
Section 08 ELECTRICAL Subsection 04 (BATTERY)
CAUTION: Never weld the wire to the terminalWelding can change the property of the wire and it can become brittle and breakInstall the protective heat shrink rubber tube (PN 278 001 692) on the terminalHeat the shrink rubber tube using heat gun so that it grasps the wire and the terminalCAUTION: Make sure that the protective heat shrink rubber tube has been properly installed and no part of wire is exposedA32E2SA