Question about 1998 Toyota 4Runner

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Battery won't charge

Battery charger is connected properly with no corrosion at either terminals or clamps. When the charger is plugged in, it will charge normally for a few minutes then the 'Charging rate' indicator needle fluctuates rapidly. Battery will not charge.

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  • yadayada
    yadayada May 11, 2010

    U have an open in the battery, u are going to have to replace it. What is the battery voltage?



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Try a new battery

Posted on Mar 11, 2009


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Napa charger Model No. will not charge 12volt car battery? What could be the problem?

If the battery is not maintenance free, check the water levels in each cell. If you need to add water be sure to use distilled. Never use tap water unless an absolute necessity to get the vehicle running as it will destroy the battery.
Make sure the charger is set to 12v. Some chargers will have a 6v setting that typically are used in golf carts, boats, off grid solar.
Check the terminals on the clamps for corrosion.
Be certain that the clamps are tight on the battery posts.
If everything checks out, get a new charger.

Apr 01, 2016 | Cars & Trucks

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It wont start! replaced the battery just today it is hooked up my right, but i get nothing but lights and gages. it wont even turn over to start. it makes a buzzing sound but nothing happens

The buzzing sound is coming from the relay on the system .

The problem you have is caused by either a low charge on the battery, corroded battery connections, or a faulty battery cable. You may have a new battery but it may be well down on power. Get a battery charger, disconnect the new battery and charge the battery slowly for 12 hours or so and retry. Also make sure your cable connections at the battery are perfectly clean and free of corrosion and are firmly clamped to the battery terminals.

Feb 25, 2016 | 2002 Dodge Caravan

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Trying to charge battery for first time. It says connect two red connectors. Do you charge it first then connect the connector afterwards?

1. I assume this is a car battery so the first thing you do is to disconnect the vehicle cables from the battery terminals. The negative first and then the positive. The positive terminal is marked with a plus sign ...+ ... When refitting the cables to the
battery after it is charged you fit the positive cable to the positive battery terminal(+) first and fit the negative(-) last.

2. Now that the battery is unconnected from the vehicle you can fit the charging cables to the battery terminals. The charger you have should have 2 cables leading from it , a positive with a red plastic insulation on the clip and a negative cable probably with black insulation on the clip.The instructions with the charger will tell you in which order the cables are to be attached to the battery and the order you remove them. Each of the 2 cables has to be clipped onto the correct battery terminal. The positive cable(+) from the charger goes to the positive battery terminal (+)and the negative cable(-) from the charger goes to the negative battery terminal(-).

3. Once the cables from the charger are properly connected to the battery, you can plug in the charger and turn on the power.

4. Batteries generate explosive gasses when being charged and it only takes one small spark to ignite them. Don't reconnect the battery after charging for a half hour or so and make sure the area where you are charging is well ventilated.

Dec 18, 2015 | Cars & Trucks

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My 2004 BMW 745 has been sitting in my carport after I had an in home accident,The battery is dead.I got an electrical charger but do not know how to re charge.Some say undr the hood.Others say trhrough...

The jumper cable connection point under the hood is directly connected to the battery. If you are not familiar with charging batteries, it is much better that you connect your charger under the hood.
Leave the ignition turned off. Connect the positive (red) clamp to the jumper cable connector under the hood. Connect the negative (black) clamp to a bare metal ground point such as a bolt or lifting lug on the engine. Then plug in and turn on the charger. Let it charge for several hours before trying to start the car.
If this is the original battery, it likely won't ever really work well again. Maintenance free batteries do not respond well to being completely discharged, and at 7+ years of age, it is due for replacement anyway. I had to replace the battery in my wife's 2004 BMW 330 about four months ago, and it had never been allowed to go dead,

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Replaced alternator and battery. Battery light continues to stay on-- battery will not hold charge. Fuse was checked and is ok.

Go to the battery positive terminal is ther a 30 or 40 amp fuse you ll have to visually inspect to see if its open, you also need to look in power junction box and look at the big green fuses some orange and some red the big ones not the small one, check to see if any are open more than likely the fuse are open

May 06, 2011 | 2004 Hyundai Elantra

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How do you change a battery in a 1999 chevy venture van

Assuming you have a battery charger. Do not plug charger in until after it is connected.
1. Open hood & locate battery.
2. Identify the positive terminal of the battery (usyally has a red cover or red marking.
The battery has side terminals (not posts like nonGM batteries)
4. Connect the + red clamp the the positive terminal wiggle it a little to get good connection.
5. Connect the negative black clamp to the engine block, a handy bracket on engine or the negative terminal on the battery. DO NOT CONNECT TO ALTERNATOR
6. Be sure connections are secure.
7. Plug in charger it should show charging. Leave it over night
8. Before disconnecting charger disconnect power to the charger.


Dec 08, 2010 | 1999 Chevrolet Venture

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I inherited the charger w/no manual - as I've

I can find no manual on line for the charger but the basic & most important things I can share with you.

On the charger should be your On & Off switch, possibly 6 volts / 12 volts switch, (you want 12 Volt) some have a meter to show how much amp draw is taking place as it is charging and you'll have to determine that from observation.

MOST important parts: It is best to disconnect the battery you are charging, at least the Negative post. This will speed up the charge process & prevent any mishaps with the electrical system on the vehicle. I prefer the battery completely removed & placed on an insulated material, plastic, wood, rubber, to prevent battery drain by sitting on concrete or the ground.

If you can check the battery first for swelling/cracked case=don't charge! Frozen inside=don't charge! Thaw first. The fumes from batteries charging are explosive & no sparks, or flames should be anywhere near. Upon reinstalling, Negative wire is always last to connect & be sure that everything inside as far as lights & ignition switch are off to prevent excessive sparking when you connect the final cable.

Charging & connecting. I prefer to test unknowns such as the connecting cables to make sure they are what they say they are. You need a multimeter for this but for now, I am expecting they are marked properly for this instruction. You need a Positive clamp , this one usually has Red handles, to connect to the Positive terminal of the battery (marked POS or +) The other cable, generally Black, connects to the Negative terminal (marked NEG or - ) and provides the ground to complete the circuit.

Make sure connections from the charger to the battery are all clean & well attached, then turn ON the charger. This will prevent sparks near the battery. Be sure to turn off the charger once charging is completed, then disconnect the cables from the battery. The unit you are charging with should give you some indication about when you're charged 100%, but these are the basics of charging a low battery. If by chance your charger shuts down on you & stops charging immediately, you either have the terminals reversed, or a shorted battery. good luck

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Two weeks ago my battery was fine, now my car won't even start. It has gotten really cold here, could that be a problem? Also, tere is a blue gunk around one of the battery connectors. What could be...

I would bet your guess is the correct one,
cold weather is the killer of batteries,you need to chose one that has high cca's
Cold Cranking Amps, the hight the number the longer it will turn your engine over in the cold before dying.
the blue color around the battery post is corrosion,the best way to get rid of it is to pour hot water on it,
"not pepsi" like some think because it will just return.

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How do i connect a battery charger

I suppose this is what you want to know

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Charge battery

Do you have a battery charger? If you do, connect the red(positive) clamp on the charger (+) to the Positive (+) battery post. Then connect the black(negative) clamp on the charger (--) to the (--)(negative) battery post. Make sure these are hooked up this way, if they aren't, you can damage the car's charging system (big bucks to fix). When you are sure the charger is connected to the battery properly, plug the charger in. It would be best to let it charge overnight. You must then find out why the battery went dead, otherwise, when you go out someplace and turn the car off, you may not be able to start it up again. If it's the original battery it's time to get a new one. You can drive to a major parts store, they will check the battery and car's charging system to see what's wrong for free.Good Luck countrycurt0

Aug 23, 2008 | 2004 Buick LeSabre

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