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My battery light is on.do I need new battery. Battery is 3 years old

Posted by Anonymous on

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  • Cars & Trucks Master
  • 2,913 Answers

Just a word of warning about batteries. A battery produces two gases when it is charging, oxygen and hydrogen which can be a very explosive combination in the confined space above the electrolyte. The sharp shards of plastic shrapnel that a battery case becomes if it does explode can fly a long way and the spray of acid can ruin a set of clothes or eyes.
Even though your battery might not be charging there could be gas hanging around so blow or fan across the battery to disperse it before doing anything that might create a spark. If you can remove the cell caps first and then blow or fan across the top.

On some vehicles the battery light coming on is an indication the drive belt has become slack or has broken, the generator or alternator has failed or there is something wrong with the wiring.

If the light has come on because the belt has gone and the belt also happens to drive the water pump and cooling fan it would be foolish to drive the car until it is repaired.

Posted on Apr 20, 2015

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  • Expert
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Usually this is a sign that it is not charging correctly. First check the battery posts. Corrosion will make the light come on for sure. Water level in battery? Go to an auto parts store after cleaning the posts and checking water level (if you can, do not get acid on ya either or over fill it). Then they can tell if the unit is charging correctly by simply putting on a volt meter across the posts. Good Luck.

Posted on Apr 20, 2015

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Posted on Jan 02, 2017

shaggyrat
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SOURCE: 1991 ford ranger battery light

bad battery module for the light or a dieing cell in battery

batterys can be tested and wont show a dead cell at all but you will be told that the battery good
most batterys are refurbished batterys sometimes getting the luck of a good battery is 50/50 chance

heres a way to test the battery and alternator at the same time
start vehicle
disconnect battery positive post
if vehicle dies the alternator is at fault if vehicle doesnt die its the batterys life dead cell

Posted on Jun 11, 2008

  • 1374 Answers

SOURCE: My 2000 Chevy Blazer battery light is on. This

Could be anything from corrosion on cables, loose cables, lose or faulty wiring of wires behind alternator
defective voltage regulator. Visually inspect all the items noted. Then use a volt meter and measure the charging voltage of the alternator. It must be between 13,5 to 14.5 volts with and without accessories on at idle and 2000rpm. Anything below 13.5 weak battery or defective alternator ,lose wiring , corrosion. Anything above the 14.5 volts is a defective regulator.

Posted on Jul 06, 2010

jgwhomeequip
  • 1902 Answers

SOURCE: Battery warning low charge on

With the low charge indicator on it would be the alternator not doing its job correctly. You can take the alternator and the battery to a local auto parts store and they can run a test on both and charge the battery to see if the battery is leaking down or if the alternator is not charging correctly.

Posted on May 29, 2011

skychief2001
  • 21873 Answers

SOURCE: battery keeps draining already put in a brand new alletantor and brattery still draining and battery lights comes on and truck won't start

You would have checked the charging system before replacing the alternator, so I will assume the charging system is good.
If the battery is being discharged overnight or over a few days, you would need to disconnect it and check every circuit on the truck to find the drain.

Posted on Oct 11, 2012

  • 11 Answers

SOURCE: battery light

how many volts are present when testing at the alternator (generator) positive post with the car running but no extra load (heater, lights, radio, ect)?

Posted on Mar 07, 2013

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I have a buick 2011 and I'm having problems with my battery,i put in some acid,but the proson at the auto zone also was saying that it can be the altinater?


Yes, that's true. Some testing with a voltmeter would help determine if you have a problem with either the battery or the alternator. Does your battery (or alternator) light come on with the engine running? That would indicate a "charging" problem, and it could be a faulty battery or alternator. If the lights don't come on with engine running, but the battery is still weak, it could be a bad battery. If your battery is over 3 or 4 years old, very possible you need a new battery.
It sounds like your battery is not getting fully charged-if it is old, try a new battery. If you are not sure, have your alternator tested.

May 22, 2016 | 2011 Buick Regal CXL

2 Answers

Driving down the road the battery light came on,


Your charging system stopped working (that's what the light means if it comes on while the engine is running), and now the battery is run down too low. Take your alternator off and have it tested. You could or should also have the battery tested, but it will need to be charged up first on a battery charger. If it is 3 years old or more, you may need a new battery. First have the alternator tested at a parts store- it is a free service.

Aug 29, 2014 | Cars & Trucks

2 Answers

2005 lincoln aviator on fifth battery in nine years. Why?


Motorcraft Batteries?

In my Lincoln L/S, the first one lasted 3 1/2 years & was done under warranty

Second one lasted 5 years

Now that one failed two weeks ago at 20 months

In my case the battery is in the trunk & you can't find a battery with
a vent for that car & ford batteries are on odd size, just for their
design or group size,go figure

The Motorcraft Max is free for 3 years & pro rated for 100 months,
so not a bad deal.

IF you have a big enough battery tray & a basic looking battery,
try the NAPA Legend Batt 8465 750 CCA 65 BCI (group size)

They are from East Penn MFG in Penn & plants in other states & their own brand is DEKA in the private parts stores

What I like is that there are no caps on top & no leaking, just like
the old AC Delco I used for 40 years & got 7 to 9 years out of them

I have had a Napa in my 30 year old blazer for two year so far

The question,well I think it is part battery & part the load the electronics puts on the batteries

When I open the trunk & have only the trunk light on & with a
new or old battery, I only get 12.3 volts

I get the same thing on my scan tool data when I turn off the car
& then put the key on,yet all data is good KOEO or Engine Running.

Mar 22, 2014 | Lincoln Aviator Cars & Trucks

1 Answer

My daughter has a 2000 stratus... she drove it the other day and it was fine. She went to start it tonight and the interior lights came on but the car would start. we tried to jump It but it still did...


You should know how old the battery is

They can last 3 years or 9 years

You could have it tested at parts store

If over 5 years old just replace with the
largest cca rating for that size or group battery

A good battery is about $120.00

Check the cables for corrosion & being
tight.

Jumping a dead battery can be a dangerous
proposition if any cells are shorted inside

Nov 15, 2012 | 2000 Dodge Stratus

1 Answer

BATTERY PROBLEM


Ultimate solution is change the battery... because the capacity of battery cells is poor.. this could be the reason if battery is old...
Still u can take a chance by completely removing the battery fluid and replacing it new battery fluid... but keep in mind that, after doing so, u'll need to charge the battery fully before using it in car...
This kind of battery problem is common in all diesel cars, the reason I think is, Diesel engine need heavy torque to start that draws heavy current from battery.. so if you are facing starting trouble for the vehicle, then battery is surely going to discharge frequently...
Still try the solution mentioned above and still the problem persists, then replace the battery with new one.
((I am considering that the battery you are having is 3-4 years old...))

Oct 16, 2012 | 1997 Ford Escort

2 Answers

2000 BMW 740i starting/battery problem. Battery


I am having the same problem same car & year

did you ever find a solution?

Mar 08, 2010 | 2000 BMW 7 Series

2 Answers

Dead battery, ford says it is the alternator, battery is 4.5 years old,never had an alternator problem before


The battery life is near its end too. It can be the alternator, jump start your car, and remove the jumper cables, if the engine cuts out it is the alternator. If it keeps goind for a while and the battery indicator light is off, it is the battery.

Jan 14, 2010 | 2005 Ford Thunderbird

1 Answer

Battery is about 3 years old, bought the car used last year.


You need to check the voltage in the battery. Depending on the quality of the battery, 3 years in some cases means its time for a new one. Have it checked first before you replace it. Auto zone or any good service place can check the battery to determine how good it is.

May 30, 2009 | 1999 Volkswagen Jetta

1 Answer

Car wont start


First clean all battery terminals ensure there is no corrotion, after cleaning them light coat with a dab of grease to protect from further corrosion.

Although the lights may work, the battery may not have enough power to kick the starter over.

Since you specified no noise, suggest you check the starter solenoid first. Ensure the battery is good and holding the charge.
5 years old, time for a new one. 3 years old, need to have it check for CCA (Cold Cranking Amps)

Ensure your alternator is working properly. May not be charging the battery.

Nov 14, 2008 | 1998 Ford Mustang

1 Answer

Battery/alternator light off and on


Hi there!

It will be the alternator if your battery is under 2 years old.

Batteries lose their capacity after a few years due to a process known as sulphation. White crystaline deposits form, preventing electron flow.

This can actually be reduced and eliminated thesedays by installing a desulphator, or using one in conjunction with a charger. I've recovered 3 batteries so far since I made one, two of which were scrap due to sulphation.

The battery companies don't want you to know about these - that's why batteries only have a 3 year guarantee on them.

If the alternator is faulty, it can be serviced for 1/3 of the price of new.

Hope this provides a solution for you. If so, please take a moment to rate as Fixya! Thanks.

Jun 19, 2008 | 2002 Mercedes-Benz C-Class

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