Thank you never thought of a load tester !!if you in doubt about the condition of the battery because of age put it in another machine and see if it cranks ok , if you do not have a battery load tester that is. check your manual for fuse and relay locations and check cable ends at battery and grounding to machine.
A healthy fully charged batter should be 12.9 to 13.1 volts at rest.With the ignition off how many volt's should my s220 bobcat have ?