Battery light on

The car starts up fine and it's not hard to start at all!

Yep, as long as you have any power stored in the battery, but when it will be used up you won't be able to start it anymore. If your alternator still put out some charge, but it is low, it will also damage your battery. Make sure the alternator belt is tight, but get a charging system test! Some parts store will do it for free. Zee