How to fix a battery that won't charge.

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I own a riding mower.It stops working after about 15 minutes of cutting.I have to replenish the battery.I had the starter rebuilt, the battery, ignition switch, and seat wiring replaced.Any suggestions?The part called "Protection Wire loop" is helpful.If your model has a full blown alternator, you can use this to send one half of the a/c electrical signal back to the battery.It's a simple way to get "dc" voltage from an ac source.The battery can't be charged if the diode is bad.If you look at a wiring diagram for your mower, it will probably be labeled "Charging System Output."It may even state the rating.It's a cheap part and can be ordered online for a few bucks.It's easy to check for a fix.The part number was 1N5404.Hope that helps.Good luck.Was this helpful?In my previous answer I thought they were using the starter.This is incorrect.The overhead flywheel has a stator.The problem is still likely to be the diode issue.My mower had a wire harness on the back of the engine.There is a wire under the left side of the engine.Just before it joins into the main harness, open the wire harness.You will find it in a wire.The diode starts the split so that one wire runs the lights and the other goes to charge the battery.I apologize for the misinformation that the diode will fall apart.I was surprised that ThriftyFun didn't allow for editing of one's own post.Corrected information can help someone.Was this helpful?Would a bad diodes explain the stalling?Was this helpful?I think I have a ranchero that won't hold a charge on the battery while it's running.Was this helpful?Kevins small engine is in South Berwick ME.I believe you will find that your alternator is not keeping the battery charged as it discharges.The mowing blades consume 3 to 5 Amps when they are engaged.There isn't enough electrical power to hold the electronic fuel shutoff.The fuel will be blocked from entering the engine.If your headlights run with 1156 bulbs, they draw 28 watt x 2.Let's call it 60 watt.60 divided buy 12 is a 5 Amp draw.A fully charged battery has a 25 Amp hour rating.When you factor in a 75 Amp draw to start the engine, the fuel solenoid doesn't have enough power to keep it open after 30 minutes.To verify, you need to start the engine, run it for a bit, and take the voltage reading at the battery terminals.If the voltage is charged correctly, it should be 13.6-14.2 volts.A bad connection in the red wire exiting the voltage regulator is the most likely reason for it staying at 12 volts.If the unit is still not charging, remove the red wire and replace the regulator.Was this helpful?To stop the battery from discharging when not in use, install a switch on the ground wire of the negative post and turn it off when the mower isn't being used.Yes, answer this question...

There is a protection wire loop.If your model has a full blown alternator, you can use this to send one half of the a/c electrical signal back to the battery.It's a simple way to get "dc" voltage from an ac source.The battery can't be charged if the diode is bad.If you look at a wiring diagram for your mower, it will probably be labeled "Charging System Output."It may even state the rating.It's a cheap part and can be ordered online for a few bucks.It's easy to check for a fix.The part number was 1N5404.Hope that helps.Good luck.Was this helpful?1

If you look at a wiring diagram for your mower, it will probably be labeled "Charging System Output."It may even state the rating.It's a cheap part and can be ordered online for a few bucks.It's easy to check for a fix.The part number was 1N5404.Hope that helps.Good luck.Was this helpful?1

It's a cheap part and can be ordered online for a few bucks.It's easy to check for a fix.The part number was 1N5404.Hope that helps.Good luck.

I thought they were using the starter.This is incorrect.The overhead flywheel has a stator.The problem is still likely to be the diode issue.My mower had a wire harness on the back of the engine.There is a wire under the left side of the engine.Just before it joins into the main harness, open the wire harness.You will find it in a wire.The diode starts the split so that one wire runs the lights and the other goes to charge the battery.I apologize for the misinformation that the diode will fall apart.I was surprised that ThriftyFun didn't allow for editing of one's own post.Corrected information can help someone.Was this helpful?2

I apologize for the misinformation.I was surprised that ThriftyFun didn't allow for editing of one's own post.Corrected information can help someone.

I believe your alternator is not keeping the battery charged as it discharges.The mowing blades consume 3 to 5 Amps when they are engaged.There isn't enough electrical power to hold the electronic fuel shutoff.The fuel will be blocked from entering the engine.If your headlights run with 1156 bulbs, they draw 28 watt x 2.Let's call it 60 watt.60 divided buy 12 is a 5 Amp draw.A fully charged battery has a 25 Amp hour rating.When you factor in a 75 Amp draw to start the engine, the fuel solenoid doesn't have enough power to keep it open after 30 minutes.To verify, you need to start the engine, run it for a bit, and take the voltage reading at the battery terminals.If the voltage is charged correctly, it should be 13.6-14.2 volts.A bad connection in the red wire exiting the voltage regulator is the most likely reason for it staying at 12 volts.If the unit is still not charging, remove the red wire and replace the regulator.Kevin has a small engine.

The switch on the ground wire of the battery negative post should be turned off when the mower is not being used.

I have a problem with my riding mower.The Craftsman DYT 4000 is an older model with a 18hp engine.I replaced the voltage regulator after I tested the alternator and it put out 28 ac.I switch between charging and using the batteries so I can use the mower.I don't know what the problem could be.Please let me know if you have any ideas.

The battery on my mower died a week after I replaced it.The key is turned and it clicks.Please help, what could be draining the battery so quickly?

It is possible that it is a loose wire.It could be more than one thing.Why don't you submit your questions?1077369-craftsman-lt1000-draining...

After each use, the battery on our tools is disconnected.It prevents the tool from being damaged.

One advice that's good is to make sure the battery terminals are clean - corroded terminals can be messing up your battery.Check water levels and make sure your battery doesn't need maintenance.Was this helpful?Yes.

It's a good idea to make sure the battery terminals are clean so that they don't get messed up.Check water levels and make sure your battery doesn't need maintenance.

I have a lawnmower that won't stay charged.The mower will run until it is shut off and then need to be charged again.Suggestions or comments?My John Deere does the same thing.At the auto supply store, I bought a charger for 50 bucks.I hook up the charge before I mow the grass.If it's still sluggish, I put the charger on boost and have my lady remove it after the mower starts.It works for me.Was this helpful?Linda found this helpful and the John Deere mower did the same thing.Was this helpful?June 10, 2015 was found to be helpful by general.If your model has a full blown alternator, you can use this to send one half of the a/c electrical signal.It's a simple way to get "dc" voltage from an ac source.The battery can't be charged if the diode is bad.If you look at a wiring diagram for your mower, it will probably be labeled "Charging System Output."It may even state the rating.There is a wire harness on the back of the engine.There is a wire under the left side of the engine.Just before it joins into the main harness, open the wire harness.You will find a wire with a diode in it.The diode starts the split so that one wire runs the lights and the other goes to charge the battery.If you can find a place that has them, it's a cheap thing to do.I ordered one online and it cost me a few bucks.It's easy to check for a fix.The part number was 1N5404.Hope it helps someone.Good luck.Was this helpful?When you're done using your mower, turn it off and leave the seat up.Pop's problem was the same until he tried that.Was this helpful?Yes, answer this question...

My John Deere does the same thing.At the auto supply store, I bought a charger for 50 bucks.I hook up the charge before I mow the grass.If it's still sluggish, I put the charger on boost and have my lady remove it after the mower starts.It works for me.

There is a protection wire loop.If your model has a full blown alternator, you can use this to send one half of the a/c electrical signal.It's a simple way to get "dc" voltage from an ac source.The battery can't be charged if the diode is bad.If you look at a wiring diagram for your mower, it will probably be labeled "Charging System Output."It may even state the rating.There is a wire harness on the back of the engine.There is a wire under the left side of the engine.Just before it joins into the main harness, open the wire harness.You will find a wire with a diode in it.The diode starts the split so that one wire runs the lights and the other goes to charge the battery.If you can find a place that has them, it's a cheap thing to do.I ordered one online and it cost me a few bucks.It's easy to check for a fix.The part number was 1N5404.Hope it helps someone.Good luck.Was this helpful?1

If you look at a wiring diagram for your mower, it will probably be labeled "Charging System Output."It may even state the rating.There is a wire harness on the back of the engine.There is a wire under the left side of the engine.Just before it joins into the main harness, open the wire harness.You will find a wire with a diode in it.The diode starts the split so that one wire runs the lights and the other goes to charge the battery.If you can find a place that has them, it's a cheap thing to do.I ordered one online and it cost me a few bucks.It's easy to check for a fix.The part number was 1N5404.Hope it helps someone.Good luck.Was this helpful?1

There is a wire harness on the back of the engine.There is a wire under the left side of the engine.Just before it joins into the main harness, open the wire harness.You will find a wire with a diode in it.The diode starts the split so that one wire runs the lights and the other goes to charge the battery.If you can find a place that has them, it's a cheap thing to do.I ordered one online and it cost me a few bucks.It's easy to check for a fix.The part number was 1N5404.Hope it helps someone.Good luck.Was this helpful?1

It's cheap if you can find a place that has them.I ordered one online and it cost me a few bucks.It's easy to check for a fix.The part number was 1N5404.Hope it helps someone.Good luck.

When you're done using your mower, raise the seat and leave it up.Pop's problem was the same until he tried that.

I own a John Deere lawn tractor.The batteries don't last long after three weeks.It is getting more expensive.How do I fix the problem?They said it ran fine after I took it to the dealer.The battery was drained after mowing twice.

I have a riding mower that is draining its battery.A new battery was purchased by us.We had to jump it off as soon as we put it in.It won't jump off now.Since the new battery was installed two weeks ago, this is the second time we tried to use it.Deanj found this helpful.I would have the battery looked at to see if it was still working.What kind of engine do you have?I have a John Deere L 120 and it wouldn't start.I think it was the battery.I was told at the battery store that it had a full charge.There may be an open ground on the mower.A new battery has more cranking power.I didn't burp from the engine after installing the new battery.I asked the dealer what the problem was.He said the valves were malfunctioning.Two dealers told me the same thing.He told me that they have made junk engines for the past 10 years.He gave me some information to try.The air intake screen is on top of the engine.If you have resistance to the turning, you can move the screen in reverse or counter clockwise.Try to start the mower.It worked for me.When I want to start the machine, I have to counter turn the air screen until I feel the resistance.Then it begins.I checked the connections as well as the safety connections and found nothing.Maybe this will help you.Was this helpful?October 9, 20161 found this helpful, you saved me!Thank you!Was this helpful?I have the same issue, but when I place the battery charge on in the start option, the motor won't start.Answer this question.

1.I would have the battery looked at to see if it was still working.What kind of engine do you have?I have a John Deere L 120 and it wouldn't start.I think it was the battery.I was told at the battery store that it had a full charge.There may be an open ground on the mower.A new battery has more cranking power.I didn't burp from the engine after installing the new battery.I asked the dealer what the problem was.He said the valves were malfunctioning.Two dealers told me the same thing.He told me that they have made junk engines for the past 10 years.He gave me some information to try.The air intake screen is on top of the engine.If you have resistance to the turning, you can move the screen in reverse or counter clockwise.Try to start the mower.It worked for me.When I want to start the machine, I have to counter turn the air screen until I feel the resistance.Then it begins.I checked the connections as well as the safety connections and found nothing.Maybe this will help you.

When I place the battery charge on in the start option and wait 10 seconds, the motor won't start.

After 2 uses, the Craftsman mower battery is dead.Is this normal?I had to mow my yard with a dead machine.I've seen posts that say this is an ongoing problem.

I replaced all the wires and the battery on the original Cub Cadet lawn tractor.When I want to start it, it won't turn over the engine once.I have to put a car charge on it and wait for it to turn over.It dies very quickly if I try to start it.

I replaced them all, but I can use a continuity tester to look at a wiring diagram.Could the battery be shot?

It was working well last year.The tractor was turned off after the first lawn cut.It was dead on the next use.The black negative battery cable was melted when I looked at it.After using the new cable and battery, the battery is dead and needs to be charged.Any suggestions?I don't have the money to take it to a shop.I am living in a house.It's not the battery.Help!It is in good shape.Roger B answered this question.

My John Deere lawn mower battery is dying.The battery is dying between uses, but I have changed it.I want to know if there is a short or constant drain on the battery.David answered this question.

I have a pro rider.There is a problem with the battery.I have to pay every time we mow.Julie answered this question.

I own a riding mower.The battery won't stay charged while running, so I have to jump it off.How can I fix it?This question was answered by stephen from Memphis.

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