:agree:when i installed my last battery (Yuasa) i bought longer stainless bolts and 2 stainless lock washers, this helped the aftermarket accessories power and ground rings too. But with that lockwasher it seems to work been about 2 years never a problem. Just have to make sure the bolts aren't too long, otherwise they will "bottom out" on the battery case when tightening (making you think its tight).
EDIT ADD: i used the lockwasher on top, the bolt head side.
I did exactly the same.
VTXArizona, glad you posted this info for others to see. :thumbup: Good info.