Battery Tender

[NuBiker]

A few days ago, I parked my Rebel in the garage during the day and did not notice I left the key on. My battery was so dead, I could not beep the horn, and got no lights at all.
I got one of those Battery Tenders. It's really cool. You can get this attachment that you leave on your battery, kind of like an extension cord, so you can plug in the Battery Tender without taking off the side cover when you wanna charge your battery.
I kind of like the idea of "topping off" the battery when I am not riding the bike.

http://www.batterytender.com/

[GearJammer]

Worth every penny, especially in the colder months when some don't ride as often. About $30 as I recall......

[Scott58]

I've got one of those too. Very handy.