When do I need more juice?

When adding accesories such as air compressor, radios, winch, lights, stereo, etc. when do you need to upgrade alternator and/or battery?

if you are going to run anything that pulls high amps, like a winch, or more than 3 100w lights, or anything over 500 watts of bass on your stereo, you should upgrade to a better battery, like an optima. if you are still having issues get a better alternator.. if you really load up on lights and a bigass winch get a bigger alternator and convert to dual batteries, its not very hard - especially if you have a cone air filter, the second battery fits nice where the airbox used to be.

hope this helps