I have a Schumacker bought for $25 at Wal Mart that I use on a bike I never ride and so far it works great. Never used one on my Speedy and that battery lasted 9 years in an unheated shed. I think with regular use on the battery the tender is a waste of money.

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!