Question about 2006 Yamaha Neos

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Battery drains overnight and will not start in the morning, i have checked the charging system & get around 14.3v when engine is running. I think i have a short somewhere as i have recorded a 4v drain with engine off & key's out. Can anyone help please.

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Check your battery earth terminal. Then check all the light and connectors for water. If all of this is okay, then the problem is probably your immobiliser. You would need to take it to a dealer to get it fixed.

Posted on Apr 21, 2013

  • Keith Apr 21, 2013

    Thx Michael will try this, much appreciated.

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Posted on Jan 02, 2017

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DickCanFixIt
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SOURCE: We have 1992 Yamaha Venture.

If the battery is draining while the bike is running you have a failure in the charging system. Check your alternator and your voltage rectifier. While the bike is runnning, if you put a voltmeter on the battery at idle you should get around 13-14v. If you rev the engine up to 3-4000 rpm that voltage should rise a bit, say 1/2 to 1v. If you increase your electrical load (lights, heated grips or clothing, radio, etc.) it should rise a little more.

With the bike off and the key off, put your voltmeter's red lead on each fuse in your fusebox and the black lead to ground. Are you getting any voltage? There should be none on any fuse that does not have power while the bike is off. If you find voltage, note what circuit you find it on and check that circuit for a faulty component or shorted wiring.

Good luck to you.

Posted on Jan 10, 2009

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3 Answers

Battery drains overnight


Car And Deep Cycle Battery

Frequently Asked Questions

submenu.jpg How do I jump/bump start my vehicle?What is the Bottom line and Tips?How are Batteries made?How do I preform Preventive Maintenance?How do I Test a Battery?Is Vehicle's charging system OK or Large Enough?How do I install new batteries?How do I dispose of my old battery?How do I charge my battery?What causes my battery to drain overnight?Common causes of premature battery failures?How can I store batteries?What are they Myths about batteries?How can I increase the life on my battery?How long can I park my vehicle?How can I revive sulfated batteries?Why won't my engine start?

What causes my battery to drain overnight? Parasitic (or ignition key off) drain is the cumulative load produced by electrical devices, for example, emissions computers, clocks, security alarms, radio presets, etc., that operate continuously after the engine is stopped and the ignition key has been switched off. Normal parasitic loads are below 75 milliamps (.075 amps). When the parasitic load is greater than 75 milliamps (.075 amps), batteries will drain more quickly. Glove box, trunk, and under hood lights that do not automatically turn off when the door is closed or shorted diodes in alternators are the most common offenders. Cooling fans, power seat belt retractors, radios and dome lights left on, alarm systems, and electric car antennas have also caused batteries to drain overnight. Leaving your headlights on will generally discharge a fully charged car battery, with 90 minutes of Reserve Capacity (36 amp hours), within a couple of hours.

It is highly recommended, especially if you are using a sealed wet "Maintenance Free" (Ca/Ca) battery, that you allow it to thaw if frozen, fully recharge it in a well ventilated area with an external battery charger, remove the surface charge, and load tested both the battery and the charging system for latent damage from the deep discharge. You could have a damaged or bad battery. If the alternator is warm and the engine is cold, then check for a shorted diode in the alternator.

Below are some methods that are used to test the parasitic load with the engine NOT running, under hood light disconnected, all accessories switched off, and the vehicle doors closed:
  • Connect a 12-volt bulb across the positive and negative battery terminals to test the bulb and the battery. If it glows brightly, then remove the negative battery cable and connect the bulb in series between the negative battery cable terminal clamp and the negative battery terminal. If the bulb continues to glow brightly, then start removing fuses or connections to the positive battery post one-at-a-time until the offending electrical component is identified by the bulb dimming.

  • A better approach is to use a DC ammeter, for example a Fluke 175, inserted in series with the negative battery cable terminal clamp and the negative battery terminal or a clamp-on DC ammeter, like a Fluke 336 or i410 around the negative battery cable. Starting with the highest scale, determine the current load. If the load is above 75 milliamps (.075 amps) after the initial surge, then start removing fuses or connections to the positive battery post one-at-a-time until the offending electrical component is identified by the parasitic load dropping to within 75 milliamps (.075 amps).

Oct 17, 2015 | Cars & Trucks

Tip

Draining of car battery charge



My tip is for all makes and models of vehicles
It is a common fault these days are more and more extra fittings are loaded to the cars and when proper precautions are not taken it will end up to fault the system.
Hence in case of a battery drain overnight try these checks.

You must check the drain current on your battery after the engine is switched off. The best way to check this out is to connect an ammeter in series to the battery and check. There can be a permissible limit of few milli amps but a large drain can in about 12 hours ( overnight) fully drain the battery no matter how much you have charged it or the system charged it up.
Now disconnect one by one the circuits to centre on the faulty circuit and then the faulty device. This is easy as the fuse can be pulled out one by one till the ammeter reading drops down.
Now it is always possible that directly connected circuits like Clocks, audio/video systems, remote control units , brake lamps park lamp circuits can be possible problem areas.
After the device is identified and battery must be charged up fully and tested overnight.

on Sep 01, 2010 | Hyundai Accent Cars & Trucks

1 Answer

What possible way can check to tell if my overnight battery drain is due to the diode sticking? Is there a test or a tip you could offer? The battery is new and the alternator tested ok.


A diode doesn't "stick". Either one of your circuits is using battery overnight, the battery is defective, or it's not charging.

Assuming the battery is "good", pull all of the fuses overnight. If it's good in the morning, put all the fuses back in, and next night leave one in. Next night, the next fuse, etc.

Once you know which circuit is draining your battery, you can troubleshoot further.

Sep 15, 2015 | 2008 Pontiac G6 GT

1 Answer

Battery drain overnight on pontiac 1994sunbird


The alarm light will not kill the battery. Your diode in the alternator may be bad. This will slowly drain the battery. Replace the alternator. Or charge it up and go to auto parts store and have them test the battery and alternator and starter.

Oct 11, 2017 | 1994 Pontiac Sunbird

1 Answer

Electrical problems,won't start in morning after sitting overnight,with boost it starts immediately


Have your battery load tested at auto parts store. Do it while still in the car. They can also check your alternator at the same time. It sounds like you either have a short that is draining the battery as it sits overnight or as your vehicle runs the battery has enough charge to run but not enough charge to last it UNTILL the next morning.

Aug 09, 2013 | 2001 Pontiac Montana

2 Answers

Hello I recently had to get my tabs for 1994 gmc Sierra c 1500 truck 5.7 v8 but before I could purchase them I had to take an Emmission test. I was worried I wasn't going to pass so I bought a produc


The battery wont hold a charge. this may be due to a bad battery, try to remove the positive cable and see if it starts in the morning, this is assuming it drains overnight, does it drain overnight ? if it does try that and if in the am it will not start after conntecting the terminal then battery is bad.

If it starts then there is a draw, you will need an amp meter. connect it to battery and look at the draw amount, then start removing one fuse at a time until the draw reading drops, the fuse that make the draw reading drop will be the system that is causing the draw. let me know what that is.

Again am i correct , is the battery going dead over night or is it when you are driving?

Nov 24, 2012 | Cars & Trucks

1 Answer

I HAVE TO JUMP MY 2005 PONTAIC EVERY MORNING, I'VE HAD THE BATTERY A COUPLE MONTHS & IT CHECK OUT OK, WHAT COULD IT BE???


could be the battery or something draining power from the battery,
when you get home, disconnect the negative battery terminal from the battery, leave it over night in the morning connect it and try to start, if you do not start it means that your battery (although new) has a bad cell thats causing the charge to drain, take it back for warranty. Dont worry about the load test done to check the battery it'f based on the battery's current charge rate not after its left overnight.
If you did start it means something is draining power from the battery, could be,
1.) lights remain on check (hood light, door lights trunk lights) 2.) device remaining on , check radio, ac etc 3.) the cars CPU is draining too much power.
an easy way to check which one is to remove the fuses from the fuse box under the hood for each particular component to turn them off. or you can take the car to a gurage and have them go through all the harnesses for a short.

Apr 04, 2011 | 2005 Pontiac Grand Prix

1 Answer

Battery runs down when it's parked, any idea?


Hi!!

Batteries over time loose capacity to hold charge. You can jump start the vehicle in the morning and run around all day, but the next morning it won't have enough charge to start up.

Take vehicle to an AutoZone to have charging system and battery checked up at no charge. There are other autopart stores that also offer this free service to their customers..

Don't forget to rate this post. Good Luck!

Jul 07, 2010 | 1987 Porsche 944

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