A rechargeable device most often made of lead plates covered in an electrolyte and protected by a plastic shell which supplies consistent electrical energy to a motor vehicle. Often referred to as an SLI battery (starting, lighting, ignition). Powers starter motor, lights, and ignition systems of a ...

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Charging battery after a jump start

A friend accidentally let the battery in his car run out by leaving the car lights on. He managed to get it going again with a jump start, but he wasn't sure how long he'd have to drive to ensure that ...
2
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3answers
342 views

Do all 12V batteries produce the same amount of current?

I have a car battery which is roughly 12 V. Sometimes, I will not use the car for a week (I bike instead), and the battery voltage drops to 9.5 V ~ 10 V. This low voltage makes it hard to start the ...
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1answer
60 views

Is this plan to use old 12V battery until it fails a good one?

I have a battery in a vehicle that is running low. It has not failed, but I measured the voltage, and so I know it's running low (11.6V). From what I've read, a 12V battery should really be well ...
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1answer
449 views

Will not start after new battery was placed

My car (1994 Honda accord) is not starting even after I put in a new battery. When I wiggle the Battery a little, I find that the car will turn half way, with the lights showing the battery and oil, ...
2
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2answers
81 views

Boot Liner Mat not drying after battery leak

I kept my old replaced battery in my boot to carry it to recycle store. The battery water/fluid leaked all over the boot liner mat. There is no damage to the mat whatsoever but it is not drying. It's ...
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3answers
6k views

AC blower won't turn on after replacing battery

I have a U.S. 2011 Volkswagen GTI. After the car wouldn't start (starter would crank but engine would not turn on) I decided it's probably time to replace the battery, and did. Car starts fine, but ...
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1answer
13 views

checking specific gravity of battery fluid reads 1/2good. Should I charge or replace? [duplicate]

battery test says 1/2 good. Should battery be replaced or recharged. Battery is likely 8-10 years old.
2
votes
1answer
407 views

2003 Ford Escape battery and alternators problems

I have a 2003 Ford escape and it kept shutting off when I would leave it running with the Ac for a while. Later on the time my battery light turned on so I figured I needed to charge my battery so I ...
2
votes
1answer
9k views

Car always takes several attempts to start, what's the problem?

Recently (since the beginning of the winter), my car has been taking several attempts to start every time I use it. Several factors about the car have changed, so it's hard for me to tell what's ...
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1answer
876 views

Maximum resting 12V car battery voltage

I've been trying to find the theoretical maximum resting car battery voltage so I can determine a good voltage threshold to trigger off in a car. The threshold voltage must be above the theoretical ...
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1answer
476 views

Intermittent starting trouble with new battery

I sometimes have problems starting my 2003 Ford Fiesta Diesel. When I turn the key it'll either start normally or just start to kick over then die. If I try again, the same thing happens. My battery ...
3
votes
1answer
70 views

Dead Battery any damage done

i have been away 6 months asked friend to turn car engine over once a week ,now he told me car battery died over Christmas, So what i want to know if there is any damage done to the electronic ...
2
votes
2answers
118 views

Issues ensuring battery stays charged

('06 Acura TL) Have jumped my car a number of times now. With each jump the car has been hooked up to the other car for about the same amount of time. It seems that there seems to be a direct ...
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votes
4answers
2k views

Renault Modus wont start

The car is a Renault Modus 1.4 16v Dynamique 5dr 2005. The symptoms are: Car wouldn't start last week. The car cranks but does not start. Push started the car in 2nd, engine starts. Took The car ...
4
votes
1answer
285 views

97 Jeep Cherokee check gauges light came on and then my battery gauge dropped down to 9 didn't lose any power?

I'm so confused I had just left my house and got 3 blocks away and my check gauges light came on, then my battery gauge dropped down to 9v. My Jeep didn't lose power, and the radio, heat, lights and ...
2
votes
1answer
58 views

Ventilation of batteries

i have two 180 Varta Sealed FLA 12v batteries in my stable block which are charged by a 240kw solar panel on the roof to provide lighting to the stables. The batteries are in the feed room and we ...
3
votes
1answer
279 views

Diagnose and Handling of Frozen Batteries

So, it's been cold in the midwest. Actually it's really never been consistently this cold outside of Duluth and this means when jumping a dead car it's not a bad idea to consider if the battery is ...
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2answers
4k views

Why should I connect the red/positive terminal first when jump starting?

So, it's fairly popular consensus online that it's red/positive clips to the positive/red posts, then the black/negative clip to the frame One site mentions sparks, but you'll still get a spark when ...
4
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2answers
92 views

1998 BMW 318is excessive current draw - possible starter issue

My 1997 BMW 318is started making a whirring noise that varies with engine speed, and an electrical burning smell after driving, and the battery goes flat very quickly. I measured the current draw ...
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4answers
277 views

Why dual motor Tesla has more autonomy?

Maybe the question is more appropriate for Electronics Stack Exchange, I don't know. In the page http://www.teslamotors.com/models if we scroll down we see the several flavors Tesla sells its Model S....
2
votes
3answers
895 views

Would leaving a battery booster with only one terminal connected harm it or the battery?

I have a 2003 Mitsubishi Diamante, and I keep two battery boosters in the car "just in case". My son recently bought a car that had problems starting. He has used both my boosters on his car and ...
3
votes
0answers
153 views

my 02 Hyundai accent keeps blowing the ignition fusable link keeps blowing

My 02 Hyundai accent keeps blowing the ignition fusable link. What could cause this? We just recently replaced the alternator and battery and it was fine when I parked it, then for some reason the car ...
2
votes
3answers
181 views

car not starting after few km

In the morning my car starts in a single quick shot. After traveling for few KMs if I switch off car and try to start it, it does not come up. I can hear a small tick sound every time. Some times I ...
2
votes
1answer
694 views

Chevy Malibu 2009 won't start

I have a 2009 Malibu, yesterday I was heading back from school, then I started hearing a bizare sound like a whining sound, 2 minutes afterwards the engine stopped. When I got off to check under the ...
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0answers
125 views

Looking for battery for Honda Activa 2010 Model [closed]

I want 2 buy battery for honda activa 2010 model (it is acidic water not dry one) Which brand should I opt for exide, amaron or any other(amco etc)? Can I use dry one instead of acidic water.
6
votes
1answer
468 views

Alternator, Battery, or Fluke?

While we were out running errands yesterday, our car failed to start after a half hour stop at one of our destinations. The first attempt to start the car resulted in nothing but a rapid clicking ...
3
votes
0answers
31 views

Why has my battery gauge on my '94 Ford Thunderbird stopped working?

Today the battery gauge stopped working and the needle rests just before the 0. The car itself cranks, starts, and sounds like it always has. However, there used to be this intermittent buzzing noise ...
2
votes
1answer
66 views

2000 Jeep Cherokee 2WD battery light comes on

I recently purchased a 2000 Jeep Cherokee, and I live in Syracuse NY, where the winters are pretty cold. When I start it in the morning when it's cold out, the serpentine belt and tensioner need to be ...
4
votes
1answer
13k views

Lots of sparks and heat when jump starting a car

I just tried to jump start a friend's car. When I connected the jumper cables, there were a lot of sparks. They were connected for nearly 30 seconds and I noticed a lot of heat and smoke coming from ...
16
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5answers
75k views

What causes battery terminal corrosion?

I put a new battery in my car about 8 months ago. After a problem starting a couple days ago, I found that there was massive corrosion under the battery terminals, so I cleaned them out and ...
4
votes
2answers
2k views

Does a jump starter with lower amperage than your car battery work?

I have a 3.0 litre V6 Diesel Jaguar XJ which has a 850amp battery. A fair number of people on this 400amp Amazon jump starter say it started their 3.0 litre cars fine. http://www.amazon.co.uk/...
2
votes
1answer
1k views

wont start only rapid clicking 2004 chrysler concorde lxi 3.5L

I have a 2004 Chrysler Concorde LXi 3.5. Couple months ago I was driving pulled over shut car off and went into store..when I can out and tried to start it it just rapid clicks . I let it sit for 20 ...
6
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1answer
58 views

hooking up a battery tender to your car for the winter

Do I need to disconnect my battery to use a battery tender for the winter? Is there the possibility of damaging the charging system if I leave the cables connected? Thanks
4
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1answer
1k views

2007 honda cr-v dead battery, electrical fuses blown

Honda CR-V 2007 I parked this car on Friday. It would not start on Sunday and the cd changer changed a bunch every time I tried and a few other dash lights came on. It was cold during the 2 days (...
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votes
2answers
1k views

Can I safely upgrade to an AGM battery?

AGM batteries are capable of being charged at a faster rate, and may draw additional amperage from the alternator if it is not regulated. Many cars that come with AGM batteries have special charge ...
5
votes
1answer
1k views

Can a bad battery damage voltage regulator?

I have a '91 Ford Sierra Saphire 2.0 OHC (pinto). Have been struggling with having no charge for weeks now. I've tried two different alternators, had one of them completely rebuilt by a professional, ...
6
votes
2answers
94 views

Honda civic 2003 dead battery from cold

My Honda Civic died after the temperature dropped lower than -30°C, and will only start now when I boost it. The previous owner told me about this, and he said he replaced the battery. But now, it's ...
2
votes
1answer
47 views

is my car battery bad?

At 6am this morning the car battery was dead. (It snowed all night and temperature was 3 degrees this morning.) 3 hours later I went to check it out and it started right up so I let it run for 20 ...
1
vote
1answer
125 views

How long after changing a battery will it take for the Engine Check light to come on if there are other issues

My check engine light was on. After my car set over the weekend it wouldn't start. I took the battery down to a shop to be checked and charged. When I picked it up they said I needed to replace it. ...
2
votes
1answer
176 views

Batery is above 12 volts but car ignition fades

I've got this car that does not start and seems like a battery problem at first, when you turn the key it doesn't turn on and it sounds like the battery is fading, but when i chek the voltage it show ...
3
votes
2answers
4k views

Nissan Altima Alternator/Battery Problems

I own a 2005 Nissan Altima which has been having alternator/battery problems for past 1 year. My car has 112,000 miles on it. My car battery was past warranty so I had the battery replaced about a ...
2
votes
1answer
252 views

Lexus IS200 malfunctions after wrong polarity battery installed

Yesterday I was sold a wrong battery for my Lexus IS200 (switched polarity) and I inadvertently connected it to the car. When I hooked up the wrong battery I noticed immediately that something was ...
1
vote
2answers
68 views

Is it always the side battery cells that need topup?

Adding distilled water to my car battery, I've noticed only the side cells very short of reaching the meniscus. The most positive cell, facing the front of my '08 Jetta 2.5L (which has empty space, ...
4
votes
2answers
8k views

how fast does the alternator charge the battery?

It would appear that the common word of wisdom is that car alternators provide 50A of output. I actually looked at the supposed specs for my 2008 Jetta 2.5L on the internet -- a compact car -- and it ...
6
votes
1answer
206 views

how do i know if my lead-acid battery has been resurrected?

The OEM battery in my 2008 Jetta SE 2.5L has been nearly fully discharged one month back (had insufficient surface charge after a prolonged use without the engine running, but leaving it idle for 20 ...
3
votes
0answers
49 views

Negative surface charge?

At about 20°C, there has been a situation that the OEM battery in my '08 Jetta was not capable of starting the car at all (virtually no movement of the starter at all), after being used for at ...
0
votes
2answers
57 views

Car with floor-integrated battery pack

Are there any other electric cars with a floor-integrated battery pack other than the Tesla?
2
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0answers
148 views

Nuts for 2008 VW Jetta SE 2.5L battery terminal bolts: 1/4" or M6? [closed]

I want to use an external charger to charge the battery in my US-market 2008 Jetta 2.5L SE with an OEM battery. I need to figure out which nuts to get to fit the existing battery terminal bolt, in ...
4
votes
1answer
93 views

Alternator/Battery power question

Good Afternoon, I have a 2014 Ford Focus SE that i use as my Work Vehicle. I work in Emergency Roadside Assistance. I have to run a laptop In the car in order to direct calls to other employees and ...
3
votes
2answers
2k views

would a sulfated discharged 12V battery charge at 12.5V?

I got a Stanley FATMAX RE-CHAGEiT 8AMP Automatic Battery Charger & Maintainer from Walmart for 29,97 USD, which appears to have three states of charging the battery -- detecting the voltage, rapid ...