Check out any of the twelve Battery components enlisted.
The Bolt, Upper is the most widely applied product in the GS650GT 1981 (X) (E01 E02 E04 E15 E16 E17 E18 E21 22 24 25 26 34 BATTERY ( two times ).
Some items from this specific schematic: Cover,battery, Spacer(6.1x9x7.5), Battery Assy (12v), Hose,battery Exhaust.