Common solutions for: Small engine battery keeps draining
01 - Small Engine Voltage Regulator
While the engine is running, the voltage regulator sends the proper amount of voltage from the alternator to the battery to keep the battery charged. If the voltage regulator is defective, the battery won't receive enough voltage, causing the battery to drain quickly.
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Most Common Solution
02 - Small Engine Alternator
To determine if the alternator is defective, use a multimeter to test the alternator output.
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Most Common Solution