I've had my bike in the garage for 3 months and haven't started it. I tried starting it yesterday and the lights and accessories worked but pushing the start button did nothing... No noise or anything. I put it on the battery charger for 8 hrs. Pushing the start button would make it go Click Click Click but it wouldn't actually start. I put it back on the charger for another 11 hours and same thing just clicks won't start. Should I charge it more or should I get a new battery? Could it be something else?

 

You don't say what bike you have, or how old the battery is. If the starter was working last time you rode it, I'm guessing battery. Cold weather doesn't help (slows the chemical reaction that makes electricity).

 

Pull the battery and have it tested. Any auto-parts store will do it for free.

 

Start with the obvious. Get the battery load tested, that will tell you if you need a new one. Probably do.
If it's gonna sit for a few months get a battery tender and leave it on while parked.

 

Clicking means the battery is dead.

 

Try a slow trickle charge on it over night. If that doesn't work, your battery is shot.

 

It takes just one deep discharge to permanently damage a lead acid battery, ..... and to confirm as others have suggested, charge it overnight and take it to your local Auto store for a free load test.

 

It's the battery. The clicking sound is the starter solenoid temporarily closing. There isn't enough power from the battery to keep it closed and get power to the starter motor.

 

Or it could be as simple as a loose or corroded cable.

 

try jump starting it with a car.
Even a shorted battery will jump start.

If the bike starts I would think it's the battery, if it just clicks it would either be the starter or perhaps a loose wire.