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HomeRepair HelpLCT RepairLCT Small engine battery keeps draining Repair
LCT Small engine battery keeps draining
If your LCT small engine battery keeps draining, or the engine battery dies after starting, the charging system is the first place to check. The voltage regulator is the most likely cause. While the engine runs, the voltage regulator sends the proper voltage from the alternator to the battery. When it fails, the battery may not charge and can quickly lose power, causing a small engine battery not charging problem or an engine that will not hold a charge. Next, test the LCT alternator output with a multimeter. A defective alternator can prevent the charging system from replenishing the battery, resulting in an engine not charging the battery. Check the battery itself as well, especially if it has been repeatedly drained, but verify charging output before replacing it. Inspect related wiring and connections for looseness or corrosion. Enter your model number to find the exact LCT small engine voltage regulator, alternator, or battery replacement part for your specific engine.
01 - LCT 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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02 - LCT Alternator
To determine if the alternator is defective, use a multimeter to test the alternator output.
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Frequently Asked Questions
Why does my LCT small engine battery keep draining?
How do I test an LCT small engine alternator and voltage regulator?
Could the battery be bad if my LCT small engine will not hold a charge?
What else can drain an LCT small engine battery when the charging system tests good?
How do I find the correct LCT battery, alternator, or voltage regulator?