Generators lock up due to a bearing problem. That's a mechanical problem, not an electrical one. If you're hard-of-hearing and need an obnoxiously-loud amp to hear your "music", that amp will not draw heavy current constantly. They only draw really high current during the loud bass notes that cops stop people for in my city. The battery will make up the momentary current needs if the generator can't. You can use a larger battery or you can add a capacitor near the amp. A capacitor will store some current that can be used to overcome the tiny amount of resistance in the wire going to the amp.
If you aren't having any other electrical problem, just chalk the generator failure up to a bearing failure. You will not get more current from a generator with a higher current rating. Every generator will only deliver enough current to meet the needs of the electrical system, and no more. When you install one with a higher rating, you'll get the same amount of current as with the old one, except under one condition. That's during a full-load test with a professional load tester. That test only last for a few seconds, but the output wire will have some type of fuse device in it based on the size of the generator the vehicle came with from the factory. Under a full-load test, a larger generator can possibly deliver more current than the fuse link can handle. If your vehicle uses a bolted-in fuse, it will blow right away and have to be replaced. If you have a fuse link wire spliced into that output wire, it will withstand the momentary current surge during that brief test.
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Thursday, May 21st, 2015 AT 4:56 PM
