so i take my alternator to autozone and have it checked out to see if it works since im having charging issues....the alternator checks out at 14v. When i test it at home with a voltemeter, it only reads 10v. The battery is brand new(just got it today) and the car does not hold a charge, i checked the grounds and rewired some to a better location and its still the same thing, only running 10v from the alternator. Does anyone know what the problem could be? i do have to alternators, and they both read 10v when plugged into my car, the pully and belts are fine, anyone have an idea?