> Matt, Try Harbour Freight they have these
> cheaper and in several flavors.
> http://www.harborfreight.com/
Although I've learned my lesson on buying some crappy stuff from Harbor Freight (e.g. hand tools and anything that needs to be properly hardened, like the ball-joint press that self destructed the threads on me....), their battery chargers are okay. I have two of their cheap float chargers in use during the winter. One is on my muscle car and the other on my motorcycle.
The one that I use is actually on sale now for $7.49 and I've linked it for you.
JimE
Cheap float charger
jrevans@accuREMOVEsort.com