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Small Engine Battery Keeps Draining

The 2 most common part(s) or condition(s) which cause the symptom Small engine battery keeps draining are listed below starting with the most likely. Check or test each item and watch any available videos.


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To see parts for your small engine, you need to enter your model number on the right. The system will then display parts that are associated with your small engine.

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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What is a model number, and where do I find it?

To see parts for your small engine, you need to enter your model number on the right. The system will then display parts that are associated with your small engine.

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.

Enter your model number for the best repair help results:


What is a model number, and where do I find it?

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