Generator/Regulator charging voltage

RonON · May 29, 2020

Just replaced my generator on my 12V TEA 20 (positive ground, generator polarized). Ignition light went out as expected when throttled up. Voltage at battery gradually rose to about 14.3 V after about 5 minutes but did not run it longer for fear of overcharging and dummying regulator, generator, battery or all. What should the voltage be at the battery if the system is running correctly? How long should it run before I can determine that the regulator is working correctly and how do I tell? i.e. If it ran for 5 minutes without increasing above 14.4 volts can I assume that the regulator is working correctly.Thanks Ron

graham_in_NJ · May 29, 2020

14.7 volts is usually the target for 12V automotive style batteries. You did great on the first shot!

Steve@Advance · May 29, 2020

I would let it run longer, watch for the voltage to continue uncontrolled climbing.

At 14.4 volts it is good! Leave well enough alone!

Getting above 15v will need addressing.

RonON · Jun 1, 2020

Thanks guys! I'll run it a little longer and keep an eye on it to make sure that it doesn't exceed 15V.Ron

Generator/Regulator charging voltage

RonON

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graham_in_NJ

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Steve@Advance

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RonON

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