I have had the Costco charger for over a year and it works perfectly!

 

i have been using the Schumaker one on my Fatboy for a few years now... Works well.

i recently got the Battery Tender Jr on Amazon for $25 for my Street Glide and i can tell you the wires are a lot heavier gauge.

 

Thanks for the heads up Riteway...I like that it charges and smartly maintains agm, flooded and gel batteries with 5 year guarantee....bought one last night..