Originally Posted by dawg
If bike is parked for a week or more, then I'll use a tender and of course all winter. Other than that I don't worry about it. My battery in my bike is now 5 years old and running strong doing it this way.
+1 on that. Newer bikes have processor controlled systems that will always pull a small amount of juice from the battery, even when in storage... a little more if you have a security system. Its a good idea to use a good maintenance charger. My dealer automatically installs a Battery Tender Jr. on all new bikes it sells. The tiny pigtail stays with the bike permanently and takes only seconds to attach to the charger once I'm home.
I use the Ctek 3300 on my cars and love it, but either one will help protect your +$100.00 battery for a long time.