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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2answers
41 views

Car won't start, dies after jump

I have a 2007 Ford Mustang, 6 cylinder. A few hours after I drove it, the battery was completely dead. It can start with a jump, but if left to idle the engine stops soon after the cables are removed. ...
2
votes
3answers
38 views

Interpreting AC Delco's manufacturing date for car batteries

I understand that AC Delco encodes the month of manufacturing a car battery using two digits and encodes the year by one digit. The battery I just purchased, for example, is labeled P124R, which, ...
4
votes
1answer
38 views

Second battery for Android Stereo

I have an android head unit that suffers (like most stereos) a power drop/fail on starting the car. While the unit is engineered to retain OS power for a few seconds, the dvd player has to restart, ...
2
votes
1answer
7 views

Need help with my 2004 Volvo S80

I am having a problem with my 2004 Volvo S80 ... In the mornings when I go to start my car, I get a message skid service required ... Then after I mess with it a little bit the message goes away ... I ...
1
vote
1answer
15 views

battery is not working

I have a Honda civic 2006 automatic. Whenever I come after driving and park the car, the battery will automatically be empty in some time. I can not start the car until I get the battery charged from ...
2
votes
0answers
54 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 ...
17
votes
5answers
15k views

Is Start & Stop technology good or bad for my car? (Alfa MiTO)

I was recently in the lucky position to obtain an (almost brand new) Alfa Romeo MiTo, Progression. Like many new cars coming out these days, it has "Start & Stop" technology that turns the engine ...
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vote
2answers
1k views

Mercedes ML 430 will not start. No click, no electrical lights nothing.

After taking a nap in the parking lot at my job, the driver's seat (power seating) -- the passenger seat did work-- I had laid back could not be readjusted. After work I went home (3am closing shift). ...
11
votes
4answers
46k views

Is it possible to harm your car by giving someone a boost?

This post explains why it's a potential hazard to clip to the negative post on the dead battery when giving a boost. But I've also been told that I could damage the electronics in my own car if I give ...
2
votes
2answers
63 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
1answer
1k views

Sudden battery drain in brand new Accord

The other day we stopped for lunch for about an hour on a long trip in a 2012 Honda Accord EX-L 4 cylinder. When we came back the battery had drained so much the car had to be jump started. The ...
2
votes
4answers
535 views

Jumping car with too many amps?

Is it bad to jump your car with too many amps (i.e., with a 1000 amp jumper vs. a 400 amp jumper)? Or does the car regulate how many amps it will take? EDIT: I was told 400 amps is enough for most ...
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votes
0answers
33 views

What could be causing engine to stall?

I have a 97 Nissan Sentra we have check the alternator and replaced the fuel filter and pump but I can be going down the road and it just stalls what could be causing this? Any suggestion is ...
3
votes
2answers
8k 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 ...
0
votes
1answer
66 views

car won't start

Hi I have a 1992 Honda civic, when I turn the key nothing happens, lights do not turn on nothing, I replaced the alternator, I checked the battery with the little box, it says it was good I also ...
5
votes
5answers
20k views

How do I know if my car battery is dead?

By mistake, I left the headlights on overnight for my Honda Civic 2008. 24 hours later when I tried to start it, the car would not start and nothing would come on including the internal lights and the ...
1
vote
1answer
60 views

Getting information from manufacturing code on Exide car battery

If you can help me decode the following manufacturing code on EXIDE EA640 battery, especially which production plant has made it what was the date of manufacturing Code: 3EC28K5 Perhaps 28K ...
0
votes
3answers
1k views

air condition car while motor not running

Is there a way to air condition my 2005 toyota car without running the car? I would like to travel in my car but because of health issues i would need to be able to sleep in my car also, or at least ...
2
votes
2answers
301 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 ...
2
votes
1answer
626 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 ...
7
votes
4answers
1k views

Does turning off the radio and other electronics in a car before shutting off the engine prevent battery drain?

My father in law tells me if I leave the radio on in my car when I shut off the engine this will cause a bit of battery drain when I start the car. He says this will actually reduce the life of my ...
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votes
2answers
19 views

Bikes power is iffy [closed]

Hi I have a 03 katana and for some reason the bike won't power on anymore...I turn the key and nothing no lights nothing. I'm not sure if it's the battery or what. What should I do to trouble shoot ...
1
vote
1answer
27 views

Can I use tap or A/C water in my battery?

I am a little confused on this, I have been using tap water which seems to work(I don't know if there are some long time after effects). But someone recommended to use the water coming out from my A/C ...
2
votes
1answer
58 views

Car and bike. How to keep it in good condition when unused for two months?

I've seen this post, this one and this one. But what about a bike like a Hero Honda Splendor+? Apart from keeping the fuel petcock off, what else should be done to ensure that the bike runs fine after ...
2
votes
1answer
41 views

Could very minor impacts have caused electrical problems?

I've recently bought a 2002 Kia Shuma, and a few days ago I went for a 10 mile drive. I'm still learning how to drive, and I bumped into two kerbs, and while parking I hit a wall at low speed, at ...
1
vote
1answer
48 views

How did the tyre shop flatten my battery?

I bought a 'new' (2004) Subaru Forester last week. The other day, I took it in to have the wheel alignment checked, and once they had finished aligning it, they came back and said "the battery was ...
2
votes
1answer
48 views

1987 GMC pickup - will not crank

I have a 87 GMC pickup. It was running fine yesterday. Went to get in it this morning and nothing. The cab light came on at first, but now nothing. When I hook jumper cables to it I get a spark from ...
5
votes
1answer
69 views

Gases from car batteries

Does my car battery emit Hydrogen Sulfide gas when charging, or just Hydrogen gas? I bought the battery around July 2014 (brand new), and because I did not drive my car for a period of one and a half ...
3
votes
3answers
6k 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 ...
3
votes
1answer
42 views

Does a brake controller need direct battery connection, or would a switched source work?

I'm installing a break controller & 7-pin receptacle for towing. The wiring diagram I am following (below) shows the 7-pin and brake controller wired directly to the battery. I want to know if I ...
3
votes
1answer
5k 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 ...
6
votes
5answers
31k views

How many amps should my car pull while it is turned off?

I've recently started having a bit of trouble with my car. I typically drive my car to and from work each day. A couple weeks ago I went on vacation and when I returned, my car battery was as dead ...
12
votes
6answers
30k views

Battery drains by itself when vehicle is parked (parasitic draw)

A 1998 Jeep Grand Cherokee has gone through 3 batteries in the last 3 months. While they have all been replaced by warranties, it'd be nice to get the problem solved permanently. I've tested the ...
3
votes
2answers
7k 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 ...
22
votes
2answers
7k views

Jump starting a dead battery: Connect black wire to negative pole of battery or grounded metal?

Most of the advice I've seen for jump starting cars instructs to connect the black wire to a bare piece of metal on the car with the dead battery. However, I've always just hooked up both poles to the ...
1
vote
3answers
65 views

Which car parts require more energy than the starter?

Today, my car didn't start. I think that the crank was turning over because I could hear the loud sound a car makes just before starting up but the car was not starting. Anyways, I called a mechanic. ...
1
vote
1answer
2k views

Riding mower won't start with new battery

I bought an old riding lawn mower (B&S 12HP). To start it, I had to jump it from a car. The battery also looked old, so I replaced it with a new one. When I tried to start it with the new ...
2
votes
1answer
42 views

How to find and access the actual terminals of car battery

2013 Honda Civic here. I need to disconnect my car battery so that I can clean off some corrosion. Here are the pics: And: Obviously the positive terminal is under the big red cap with the plus ...
1
vote
1answer
218 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 ...
2
votes
1answer
28 views

1998 Jeep Grand Cherokee battery issues

Nearing 200,000 miles on this car, so it's beginning to have issues here and there. The most recent being that it dies when not being driven. This car was driven on a daily basis until I went to ...
4
votes
2answers
40 views

2008 Prius Dead Battery

My Prius' battery is dead. It is in a narrow garage. 1) Can I shift it into neutral and push it out of the garage? 2) Can I open the rear hatch to jump the auxiliary battery in the trunk? 3) Is ...
2
votes
1answer
2k 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 ...
4
votes
2answers
45 views

What's an acceptable battery power drop on light load?

After an overnight rest in the warm weather (above 16 degC), unlocking my 2008 Jetta 2.5L SE, my OEM battery with the minimal "welcome" electronics -- remote open of the driver door a few seconds ...
-1
votes
1answer
70 views

Charging an SLA battery for storage in an automobile

Whats the best way to maintain a 12v SLA battery in an automobile? Would a direct 12v connection to the vehicles battery system be sufficient, or is there a circuit that should be placed in between ...
2
votes
0answers
29 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 ...
6
votes
3answers
665 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 ...
1
vote
2answers
32 views

Battery/alternator on 99 Chevy Prizm?

My car was running fine (no lights/warnings). The next day I tried to start it and it was completely dead not even a click sound like normal battery is going bad kind of thing. After I got it jumped ...
0
votes
1answer
266 views

Can the Chinese EV BYD E6 charge at Tesla charging station?

I am just wondering, are there any customers of this exotic brand, especially in the US? And btw can any other EV (e.g. Nissan Leaf, Toyota RAV4 EV) charge at Tesla's fast charging stations?
1
vote
2answers
6k views

Mustang charging system warning light on, but battery and alternator both passed testing?

I have a Mustang that the battery light stays on. I changed the battery and the alternator was checked by Autozone, they said it was good. I need help
3
votes
2answers
12k views

How do I know when a car battery was produced?

I have a hard time finding when my car battery was produced - can't find any defintive information. The battery is Bosch Silver with the following data printed: 5EN in huge letters and two rows of ...