I went mudding yesterday in my 94 ford explorer XLT during lunch at school, leaving mud on the engine, and when i drove home from school, my battery light was on and my battery was at halfway. It stayed like that my whole trip. I charged my battery last night until it was full and drove to school today. The gauge changed slowly from full to half and then back to full while i was driving. It did this on my way to and from school. When i got home, i washed all of the mud off my engine and let it dry. I turned my car back on and the battery was at halfway still. I just put it on to charge again, and the charger didn't say it was full. Is this my alternator that is shorted out or broken? Or could it just be a problem with the gauge? How much will it cost in Utah to get the alternator fixed?
Thanks in advance
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