The different electrical systems in a car take a lot of amps to run. Depending on the engine speed, regular alternators mail fail to put out enough juice causing the engine battery to use up its reserve capacity. A high output alternator has exactly that, a high output of power. Any automotive parts retailer can sell you a high output alternator or you can order one through your mechanic.
eBay is a brilliant website to look at for an Alternator for your car. If not, http://www.highoutputalternator.com/ is another good website to look at.
Only if you're a trained alternator tech or very experienced mechanic. Your best bet is to purchase a new, high amp alternator.
Noting, just install it and hook it up.
If the alternator output is too high, there is something wrong with the regulator. Often, the regulator is part of the alternator. There could also be issues with wiring. It is necessary to test carefully, following the manufacturer's diagnostic procedure.
The battery light comes on when the alternator output voltage is too low or too high. You have a wiring or regulator problem.The battery light comes on when the alternator output voltage is too low or too high. You have a wiring or regulator problem.
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Output of the alternator is controlled by the voltage regulator.
The charging system output voltage is too high or low.
Inside the alternator. It's part of the alternator. If you are having problems with low or high voltage output, I'd recommend replacing the alternator as a unit.
The AVR (Automatic Voltage Regulator) control the DC field voltage to the rotor of the alternator, as soon as higher load is demanded from the alternator, the AVR output voltage go higher, hence, a higher AC voltage on the output of the alternator. If the voltage go to high then the AVR is faulty.
An alternator usually has 6 diodes in a full-wave rectifier for the main current output connected directly to the battery, and also another 3 for the secondary output to the voltage regulator, which feeds DC through slip-rings to the field coil in the rotor.
An alternator does not need a gauge to work. It is used to monitor the output of the alternator.