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HomeRepair HelpRyobi RepairRyobi Lawn mower battery keeps dying Repair
Ryobi Lawn mower battery keeps dying
If your Ryobi lawn mower battery keeps dying, start with the battery itself, because a bad cell is the most common reason a lawn mower battery drains or a riding mower battery will not stay charged. Try charging it with a charger first. If it still will not hold a charge, the battery is likely defective and should be replaced. Next, check the Ryobi lawn mower charger by testing its voltage output with a multimeter, and make sure the wall outlet has power and has not tripped a breaker. If the charger checks out, move on to the alternator, which supplies voltage while the mower is running and helps recharge the battery. A weak or failed alternator can cause a mower battery not charging condition. The voltage regulator is another likely cause, since it controls how much voltage reaches the battery from the alternator. If the regulator fails, the battery may drain quickly and create an ongoing riding lawn mower charging problem. Enter your Ryobi model number on RepairClinic.com to find the exact battery, charger, alternator, or voltage regulator that fits your mower.
01 - Ryobi 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 - Ryobi 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 - Ryobi 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 - Ryobi 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 Ryobi lawn mower battery keep dying?
How do I know if my Ryobi mower battery is bad or the charger is bad?
What causes a riding Ryobi lawn mower battery to drain while mowing?
Should I replace the alternator or voltage regulator if my Ryobi mower battery will not stay charged?
How do I find the right Ryobi lawn mower battery, charger, alternator, or voltage regulator?
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