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17500 portable won’t charge battery. Generac generator. 1…

17500 portable won’t charge...

17500 portable won’t charge battery

Mechanic's Assistant: What specific tool or machine does this involve?

Generac generator

Mechanic's Assistant: How long has this been going on with your Generac generator? What have you tried so far?

1 year I’ve done battery and all connections

Mechanic's Assistant: Anything else we should know to help you best?

Runs fine shuts off when battery is dead

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Answered in 15 hours by:
1/2/2020
Technician: Curtis B., Technician replied 2 years ago
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 43,924
Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert
Verified

Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!

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Technician: Curtis B., Technician replied 2 years ago

What is the model number? 17500 is the rating, not the model. Is this setup as emergency power for house or portable? The typical unit will have a set of diodes/rectifiers to charger the battery when running. Some models have an onboard battery charger module. But if set up for emergency power, you could add a separate charger and would keep the battery charged when the unit is not in use.

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Customer reply replied 2 years ago
OG0934
And it's is portable but also used for emergency power
Technician: Curtis B., Technician replied 2 years ago

Looks like this model would have a stator behind the flywheel for charging the battery, the stator would have two wires, going to an external three-wire voltage regulator, and the output from the regulator would go to the positive battery connection. Locate the voltage regulator, and with a voltmeter, test the stator output, by unplugging the harness from the regulator, and set the meter on AC volts, and probe the two end wires on the regulator, run the engine and look for at least 28 volts AC. If it has that, the stator is good. Then plug regulator back in, and set the meter on DC volts, and with black lead to battery negative, red lead to probe the center wire on the regulator, reading with engine off, should be battery voltage, with the engine running, the voltage should increase by at least 1 volt. from 12 to at least 13 volts DC.

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Customer reply replied 2 years ago
Ok have to get back to u tonight after my work day
Technician: Curtis B., Technician replied 2 years ago

OK>

Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 43,924
Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert
Verified
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Curtis B.
Curtis B.
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Category: Small Engine
Satisfied Customers: 43,924
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Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert

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