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Something is on, as in headlights or ignition, or the battery has a dead cell. If the battery is over 2 years old it is more than likely the battery itself that is the problem. Disconnect the battery positive cable and fully charge the battery. Let it sit overnight and if it goes dead, replace the battery. If not, find out what is running it down.

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Q: Why is lawn mower battery losing its charge when sitting over night?
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Related questions

Why will sears lawn mower battery not charge?

Do you mean that you can not charge it with a battery charger or the mower will not charge it while it is running? If you can not charge it with a battery charger and you are sure that the charger works then the battery is bad. These type batteries are only good for a couple years. If the mower is not charging the battery it could be a number of things.


Should a riding mower battery be removed to charge it?

No, you can charge it on the mower and you do not have to remove it or disconnect the cables.


Do you need to remove the battery from the lawn mower to charge it?

No, it is not necessary to remove it. You can charge it right there on the mower.


How many hours does a lawn mower battery have to be on a float charger?

A battery float charger is intended only to keep a fully charged battery from losing its charge. It will NOT work to charge a battery that is discharged or damaged. Check the voltage of the battery to be charged. Do not use charger if the battery voltage is less than 9.6 volts.


Can you charge a lawn mower battery from a car battery?

NO You have to many AMPS from a car, you can jump start it butdon't charge it.


How long can i charge lawn mower battery on 35 amp charge?

Not at all. A 35 amp charger is far too large to charge a lawn mower battery. Use a 10 amp automatic charger.


Battery wont hold a charge for a lawn mower?

replace it


What keeps battery charged on riding mower?

Mower has a generator, which is turned by the engine. When engine is running, generator produces electricity to charge the storage battery.


Can you charge a lawn mower battery?

yes as long as it is not totally dead.


How does a lawnmower charge a battery?

I suppose you're referring to a riding mower. As you didn't specify the age, make, etc, this will be an educated guess. If the mower is kept in a controlled environment, such as a garage with heat during the winter months, the battery should hold charge for years. If it is kept in a shed outside, then you'll probably need to charge the mower's battery every spring. All you need is a battery charger with jumper cables. Make sure it is capable of charging you're mower's battery. The battery is charged by a generator or magneto. It is located under the flywheel.


Is it possible to charge a lawn mower battery without a charger?

Provided the charging system on the mower engine is operational, a small amount of charging voltage will be supplied to the battery during use.


Can you charge a 12v lawnmower battery with a 12v car battery?

can a 12v lawn mower sealed battery be charged with 12v battery charger use on cars