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  1. 13 kwi 2012 · To know for sure, you should be able to get a spec sheet for the alternator which will give the output levels for input RPM. You then calculate the ratio of engine RPM to alternator RPM (due to pulley sizes), and you have an exact answer.

  2. balmar.net › balmar-technology › alternator-output-curvesAlternator Output Curves - Balmar

    The following chart describes alternator output based on two temperature levels (ambient (26 o C) and hot (60 o C)). Test voltages are set at 13.5V (for 12V units). Engine-to-alternator drive ratios vary by engine, but a conversion factor of 2 is shown here for simplicity. Engine RPM. 500.

  3. 17 paź 2022 · One way to make an alternator charge at low RPM is by reducing the size of the alternators pulley. Reducing the pulley allows the alternator to run faster at the same speed. Even if the RPM is low at this point, charging will take place because the alternator is running fast.

  4. 10 lip 2024 · The best way to make an alternator charge at low RPM is by changing the pulley size and installing a smaller pulley on the alternator to increase its rotational speed relative to the engine speed, and allow the alternator to generate more electrical power and improve charging efficiency, especially at low RPMs.

  5. 26 maj 2021 · First, we’ll look at IL, which, in this case, is 50. That means this alternator is capable of putting out 50A at the “low” test speed, which is either 1,500 RPM or “the idle speed of the engine,” depending on which standard you’re dealing with.

  6. 4 sie 2014 · Yes, a low RPM alternator can effectively charge a 12V battery, as long as it is rated for the appropriate voltage and current output. While higher RPMs may result in faster charging, a low RPM alternator can still provide a steady charge to the battery.

  7. The charging voltage should be between 13.9v to 14.4v. Also the voltage at the battery and the voltage at the alternator should be within 0.5v of each other. If the voltage at the battery and alternator don't match. For example the battery reads 12v and alternator reads 14v.

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