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Has anyone else noticed a drop a significant drop in voltage (from 14vdc to 13vdc) when they add an accessory like a light bar? I have read threads where people are adding dual batteries and bigger batteries and I can see how that would help but has anyone explored a better alternator? I mean, even with a dual battery/bigger battery the alternator can only put out so much. If the draw is greater than the supply, eventually...those batteries will die. I don't have a ridiculous load on the system, one 120watt/10amp light bar drops the charging system a volt? Has anyone heard of a larger upgrade alternator? Starting to wonder if I should look at the P1000's alternator (or any other one) to see if it puts out any more and if it could be retrofitted. If anyone knows anything...please share.