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Small Engine Battery Keeps Draining

The 2 most common part(s) or condition(s) which contribute to the symptom Small engine battery keeps draining are listed below. Check or test each item and watch any available videos. If you are still unable to solve the problem you may need to do additional research and troubleshooting. Remember, with our 365 Days. Period.® return policy you can return any part for any reason. So, go ahead and buy it to try it. No other parts retailer offers this unconditional return policy.


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For the symptom you selected, these are the most common parts or causes, ordered by the likelihood of fixing the symptom.

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Voltage Regulator

If the small engine battery keeps draining and won't hold a charge the voltage regulator might be defective. The regulator distributes a specific amount of voltage from the alternator to the battery while the engine is running to keep the battery charged.

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Alternator

If the small engine battery keeps draining the alternator might be defective. You can test the alternator output with a meter. some alternators have two circuits, one DC for the battery and one AC for lights and other accessories depending on the model.

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