An automotive battery is a type of rechargeable battery that supplies electric energy to an automobile. Usually this refers to an SLI battery (starting, lighting, ignition) to power the starter motor, the lights, and the ignition system of a vehicle’s engine.

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Alternator draining battery

My alternator has been draining my battery in my Datsun 240z since I swapped the engine (VQ35). It takes around 4 days to drain the battery to the point I can't start it. It charges it fine when the ...
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5answers
1k views

Would leaving the headlights on for two hours permanently damage the battery?

Today I accidentally left my Hyundai i30's headlights on for two hours. When I tried to start the car the battery was very weak at first and I had no power in acceleration. Then I turned off the car ...
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1answer
2k views

Car starts with push start but not with jump leads

Perhaps somebody can identify this issue. The car is a 2003 BMW Z4. The symptoms are: Car wouldn't start last week Jump leads did nothing Push started the car in 2nd, engine starts. Took The car ...
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2answers
131 views

2006 Mustang GT: Left car for 1 week, no power when returning

I went on vacation for a week. The car was working fine before I left. I came back and there is no power. Can't turn on headlights or unlock/lock with remote, and the car gives a clicking sound when ...
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2answers
41 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. ...
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1answer
87 views

Will a 12 V cooler box significantly affect the performance/gas mileage of my car?

I have an Apollo brand 12 Volt Cooler/Warmer, designed to plug in to my car's 12 V cigarette lighter. I am wondering if the power this device uses will significantly affect my car's performance or ...
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1answer
79 views

Are there any modern diesel engines the require electricity to continue running?

I was reading this question about an owner checking the alternator by disconnecting the battery, which is an easy way to validate on a gasoline engine. The single answer assumes that the OP is ...
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7k views

Factory panic alarm going off after changing battery [97 Toyota Camry]

We just changed the battery in our 1997 Toyota Camry now as soon as we connect the battery the panic alarm goes off and all the doors lock. How do we stop this / turn it off. ///note: the battery in ...
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3answers
1k views

What's happening when you give someone a boost?

While I've given and received boosts before I've always been following instructions by rote and never really understood what's happening. The procedure I've been told is: Attach red clamp to the ...
3
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2answers
602 views

Does length of jumper cable matter while jumpstarting a motorcycle from car battery as a booster?

I recently left my Harley Davidson 883 Superlow in ignition on for 8 hours, headlight drained all the battery. This was my first time jumpstart experiment. Had following few questions, happy to be ...
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3answers
51 views

How do I check that my battery receives enough power from generator?

I suspect that my battery does not receive enough power from the generator. How do I verify that? I know that involves a voltmeter, but what are the exact things I'm measuring and how? I have a Skoda ...
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1answer
1k views

Battery dash light comes on when starting car then disappears while driving

2002 Honda Civic EX here. When I start my car, my battery dash light has been staying on usually until I get onto the highway, then it will turn off. If I hit a stop sign or red light, then it'll ...
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2answers
88 views

Should i check quantity of battery liquid?

The battery of my Nissan Tiida is similar to the ones in the pictures below. Should I check if there is enough liquid inside? and in case it needs, should I add distilled water?
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1answer
2k views

Battery light comes on after starting the car. How big of a problem is this?

On my way to work this morning, the battery light came on. I would say it was about 2-3 minutes after I started the car. My drive to work is only a 10 minutes drive, and the light was on the whole ...
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2answers
360 views

'03 Mazda Tribute needs jumped every time it starts

I have a 2003 Mazda Tribute. I'm not entirely sure what the problem is with the vehicle. I suppose it could be the alternator or just a dead battery, but could also be something more detailed. I have ...
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2answers
3k views

Electrical problems due using battery charger as a jump starter

I have a 2003 honda civic, and the car battery went dead on me. I didn't have a jumper cable with me, but I had a car battery charger. So, I hooked it up to the battery and tried starting the car. ...
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1answer
174 views

Wet battery durability based on how we start a motorbike engine

I have a motorbike with a wet battery. I use its electric starter to start the engine. Is there any research done by others before to prove which one of the following makes the durability of the wet ...
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5answers
19k views

RPM and duration to recharge a battery?

My car had been sitting for a while without being driven. The battery now has a weak charge but it can get the engine started (barely). I would like to charge the battery by running the engine, but ...
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2answers
3k views

My battery was too low, and now my check engine light is on

I've noticed it in the last year (2013) that my 2008 Jetta with the original OEM battery would be taking a little longer to start than before, sometimes (but very rarely) not starting in the amount of ...
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1answer
143 views

89 jeep cherokee will run but when i turn it off and try to restart it the battery is dead

The battery is still good and the motor will keep running when you disconnect a terminal. Can my alternator be bad? If not I'm also thinking a dead short? What is the best way to find out?
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2answers
2k views

Could less than optimal battery charge prevent starter bendix drive from engaging flywheel?

With a less than optimal 12.2 volts at the battery terminals and the bendix drive at the starter failing to pop and engage the flywheel, would battery charge be a likely cause of such a failure? Or ...
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2answers
4k views

My car won't start. Is it that I ran it without coolant or is it my battery?

Sunday I didn't use my car. At 9pm I moved it across the street because the street sweeper was passing on Monday. Monday morning at 8:30am my car doesn't start. I remembered that I haven't checked ...
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2answers
3k views

Why did my car stall when I used the foot brake?

Preface: I drive a 2004 Peugeot 206, manual On the motorway the other night, one of my tires blew out. I managed to pull over and change to the spare wheel in about 30 minutes (having never changed a ...
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2answers
506 views

s60 won't start, no lights, nothing at all

I accidentally left my keys in ignition overnight - and now nothing. Have charged battery and tried spare key, but neither fixed the issue.
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2answers
225 views

Charging batteries thru cigarette lighter

The answer to this may be so obvious that I'm almost too embarrassed to ask; however, here goes: I have a high-end battery charger for my car which charges through the cigarette lighter receptacle. I ...
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2answers
2k views

diagnose faulty voltage regulator causing battery overcharging?

I've been having an issue with an '03 Toyota Echo. The alternator died (at least that is what I thought) as the battery kept going flat. I found an alternator at a wrecker and fitted it, and I ...
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1answer
271 views

2002 Altima: Battery and Gas Pedal Issues Same Week

Car Info: 2002 Nissan Altima 2.5L with about 140k miles on it. The symptoms: On Tuesday of this week the car is in a parking lot, we return to the car, it starts and idles but when the accelerator ...
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2answers
431 views

Charging battery on BMW 320ci 2003

I left my BMW unused for 6 weeks. Then I started the engine for 10 seconds and turned it off. A few days later I started the engine and drove it 10 metres and turned it off. Then I attempted to start ...
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1answer
210 views

Anderson connector for car battery?

I am thinking about making a 20Ah LiFePo battery for my jeep with 4 tenergy LifePo4 cells from eBay. I will solder the terminals directly to each other, but for the leads going to the car, can I use ...
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1answer
605 views

Battery replacement on 2001 Chevy Venture

I have a 2001 Venture that needs a battery replacement. Will disconnecting the battery activate the Theftlock system in my stereo? My impression is that the VIN is stored in flash memory, so a ...
3
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1answer
38 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 ...
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1answer
34 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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66 views

Why did replacing the battery eliminate these symptoms?

I have a 2006 Honda Civic SI. It was slow to crank when starting up, and while driving, electrical systems progressively got worse (radio would turn off and on, power steering would stop, and then ...
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2answers
122 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 ...
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1answer
174 views

Remove battery panel on Yamaha Cygnus 125 2010

I have a Yamaha Cygnus 125 bought in 2010. I need to recharge / change the battery, but I am unable to remove the cover panel. The battery is situated in the back, under the seat. The panel got two ...
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220 views

Intermittent no crank issues

My girlfriend has 2003 VW Beetle (2.0L, 5-speed manual). Sometimes, when you turn the key to crank over the car it tries to turn over but then hits a wall. No clicking happens at all. It starts to ...
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1answer
185 views

2000 Dodge Intrepid electrical problem

I accidently let the battery power cable touch the frame of the car and it sparked. Now my car does not light up dashboard or anything type of power. I tried jumping the car and still no sin of life. ...
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0answers
41 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, ...
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1answer
44 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 ...
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4answers
13k views

What precautions are needed when charging a car battery in an apartment?

Suppose a car owner lives in an apartment building and parks his car nearby. He wants to detach the battery, bring it home and charge it with a mains-powered charger indoors. How to properly handle ...
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2answers
585 views

Do the specs of my new battery need to exactly match the old?

I have the following values on my car battery: 12v 71ah 580cca When looking for a new battery, do I need to ensure I get one with those exact values, or can it be different? For example, would the ...
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3answers
6k views

Can I charge a Car Battery with a Motorcycle charger?

Car battery to be charged is a DIN66 which I think is about 65ah. I have a Motorcycle charger which says it can be used on cars; it suits batteries from 4 ah to 40 ah. Does this mean that it can ...
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2answers
413 views

Can an improper jump start cause damage to the starter motor?

Can a charger pack applied to the wrong terminals cause damage to a starter motor on a car. This was done resulting in a loud bang, flash and smoke inside the vehicle. What other damage could have ...
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3answers
3k views

Should I use coca cola or baking soda + water to clean my battery clamps?

The clamps that are attached to the car battery are corroded, I was told either of these liquids will work. Which one is better? Is there a how to guide on the exact steps I need to take? With my ...
2
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1answer
41 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 ...
2
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2answers
58 views

What is the amp-hour rating of 2014 Kia Soul base?

I'm going to be doing some camping out of my Kia, and want to make sure I will not run the battery down if I power various gadgets over night via the power adapter ports. Specifically, I need to run ...
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4answers
122 views

New batteries with acid at 80% charge— if I run then tend, will it bring it up to 100%?

I have read that, when you add electrolyte and acid to a new battery, it will then be at 80% of max charge. You can put the battery in your bike and it will turn. However, it's highly recommend to ...
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1answer
2k views

Cola vs Baking soda vs Water to clean battery, and what should be used afterwards?

This questions is to extent the following question Should I use coca cola or baking soda + water to clean my battery clamps?. I have heard of using both Coke and baking soda to clean battery clamps ...
2
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2answers
76 views

Battery shorts when key is turned quickly

My friend has a newish (~2009) Toyota Tacoma that apparently can short the battery when he turns the key from off to start too fast. By short I mean, when fully charged the truck will click once like ...
2
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1answer
247 views

Battery dies over weekend

This is about my Nissan Altima 2.5S. I drive it to work and drive back to home every weekday. My workplace is 10 miles from my home and it's about 20 minutes' ride single trip. Other than that the car ...