it keeps your battery alive
http://www.batterytender.com/why_batterytender.php

 

mines been sitting for 3 mos (deployed) hope shes ready to go when i get back in a month

 

Also, lay a sheet of plastic on the floor beneath your bike. You get a lot of moisture from the concrete. Make sure your chain is good and lubed.

 

Actually my garage floor has been covered in that homedepot floor paint. The one that you have to acid clean the cement before it get laid down. Do i still need the plastic. Could I use that a carpet floor mat that goues under the full amount of the bike?

 

Just make sure the bike is off the ground on stands and you will be fine. Moisture is not going to Jump up into your bike.

If you are going to worry about that, then get one of those bubbles that you can put a dehumidifier.