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HomeRepair HelpTroy-Bilt RepairTroy-Bilt Lawn mower battery keeps dying Repair
Troy-Bilt Lawn mower battery keeps dying
If your Troy-Bilt lawn mower battery keeps dying, start with the battery itself, because a dead cell is the most common reason a riding mower battery will not stay charged. Try charging it with a battery charger first. If the battery still will not hold a charge, replace it. If the battery tests good, move to the charger and verify proper voltage output with a multimeter, and make sure the outlet is working and has not tripped a breaker. A Troy-Bilt mower battery not charging can also point to the alternator, which should supply voltage while the engine runs and recharge the battery at the same time. If alternator output is low, the battery will continue to drain. Next, check the voltage regulator, since it controls how much charging voltage reaches the battery. A bad regulator can cause a lawn mower battery drain or a full riding lawn mower charging problem even when the engine is running normally. Enter your model number on RepairClinic.com to find the exact Troy-Bilt battery, charger, alternator, or voltage regulator that fits your specific lawn mower.
01 - Troy-Bilt Battery
One or more cells in the battery may be dead. Try charging the battery with a battery charger. If the battery still won't hold a charge, this indicates that the battery is defective and will need to be replaced.
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02 - Troy-Bilt Charger
To determine if the charger is defective, use a multimeter to test the charger for proper voltage output. In addition, test the outlet used by the charger, and ensure that the outlet has not tripped a breaker.
Highly Likely
03 - Troy-Bilt Alternator
The alternator provides voltage to the lawn mower while the engine is running and also recharges the battery. To determine if the alternator is defective, use a multimeter to test the alternator voltage output according to the wiring diagram.
Highly Likely
04 - Troy-Bilt 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.
Highly Likely
Frequently Asked Questions
Why does my Troy-Bilt lawn mower battery keep dying?
How do I tell if my Troy-Bilt mower battery is bad or just discharged?
How do I test a Troy-Bilt lawn mower charger?
Can a bad alternator or voltage regulator cause a riding mower battery to drain?
How do I find the right Troy-Bilt battery or charging part for my mower?
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