I was just wondering at what point should I consider adding another battery and/or going to a larger alternator. I already have extra driving lights and soon going to be adding a DVD player and several monitors. I also run my GPS and cell phone. Also I'm going to have a power inverter to run my Xbox. Any ideas or suggestions would be great.

 

Do you know if you have the High Output or Heavy Duty alternater or whatever Ford calls it.

Just see how your elecrical system hold up after each thing you add. Like if your lights dim, think cut out etc.

However, it never hurts to go bigger.