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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Dead battery — is there anything else that caused this?

My battery went dead yesterday. I couldn't hear the usual cranking sound of starter. Just a faint click when try starting the engine. Replaced the battery, then all was fine. I tested the voltage ...
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3answers
2k views

Motorcycle: Honda VTR 250 difficulty starting

I have a 2000 model Honda VTR 250. Up until now the bike has been super reliable. However, recently it has been struggling to start in the morning. The engine turns over many times before catching and ...
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1answer
51 views

ECM Fuse Blown what to test next

Recently I was on the highway and suddenly my car broke down and it was cranking and all but not starting so I knew some fuse has blown. I removed the indicator fuse and used it for fuse which gave ...
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votes
2answers
83 views

What to do when accidentally overfilled a car battery

My car, a 2003 Toyota Kijang (known as Toyota Revo in other markets) uses a non maintenance-free battery that has to be topped up every now and then with distilled water. Today, while filling it up, ...
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1answer
1k 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 ...
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votes
1answer
31 views

How should I properly connect a high-current accessory?

I have a 2012 Honda Accord that I would like to install a radio transceiver in. At peak, its current draw is 22A @ 13.8VDC. Generally, the wisdom is that it should be connected directly to the battery ...
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votes
1answer
34 views

2013 Honda Accord clicking repeatedly on its own?

I come home at 2:30 today. Two hours later, I go out to the garage to find my car clicking repeatedly while the parking lights flicker in unison with the clicks. I hadn't even gotten into my car ...
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votes
1answer
45 views

I reversed polarity on a jump pack when attempting to start my 2000 Dodge Neon.

I attempted to jump my 2000 Dodge Neon off in the dark with a jump pack, and I accidentally reversed the polarity. The tire inflator on the jump pack landed on my positive starter wire and burned it ...
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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, ...
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1k views

When reconnecting a battery, why connect the positive first? [duplicate]

When reconnecting a battery, why is it recommended to connect the positive lead first, and the negative lead last? What difference does it make if they are connected in the opposite order?
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4answers
8k 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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4answers
1k views

Should I turn off my headlights while having the car run to “defrost” while I scratch ice off the windows?

My 2009 Ford Mondeo Clipper has a very nice "Max Heating" setting, where it both defrosts front and back windows, and sets the airco to max temperature, max fan speed. When I find my car windows ...
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votes
4answers
28k 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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votes
4answers
73 views

What is the expected lifetime and failure mode of lead acid battery?

I have a four and half year old manual transmission car with start/stop technology. The car has required jump start once after I accidentally left the lights on overnight. I have recently noticed that ...
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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. ...
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votes
4answers
61 views

Replace or recharge a battery after is has been drained?

The keys in my car were left in the on position for about 12 hours (and maybe the interior light left on) and the battery is drained. Is there any way I tell if I should replace the existing one or ...
4
votes
1answer
10k 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 ...
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votes
2answers
39k views

Where is the battery located on a Chevrolet Cobalt and how do you change it?

I'm trying to get a 2006 Cobalt back on the road. It's presenting the symptoms of run down battery (Dim lights, time on the radio is reset to 12:00, won't start). The battery is original, so it's ...
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votes
2answers
287 views

What battery should I buy for my vehicle?

My girlfriend has a Nissan Versa 2014 (although this question still applies for any other car), and I need to buy a battery for it. I went to both Walmart and Advance Auto parts and there are lots of ...
4
votes
3answers
513 views

Is it safe to charge two batteries off of one alternator?

Right now I have a 3000 Watt invertor wired to a 100ah sealed deep cell battery that I trickle charge at night. My plan is to run #6 wire from the battery in the engine to the spare battery so the ...
4
votes
2answers
91 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 ...
4
votes
1answer
33k views

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 ...
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votes
2answers
5k views

2005 Chevy Cobalt won't start, sounds like a machine gun

I haven't driven my car in about a week, and when I went to try and start it today, it would not start. It has enough battery to play the radio and whatnot, so I'm not sure if it's a battery related ...
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3answers
21k 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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2answers
9k 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
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2answers
51 views

When you replace a car battery, would anything in the A/C system be touched?

Last year my A/C was fixed. Then winter came. Then I had to buy a new car battery and so I went to a mechanic[1] who I paid to replace the battery with a new one. My question is: When you replace a ...
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votes
2answers
155 views

Can I use any portable powerbank to jump start a car

Say I have some ordinary portable powerbanks I use for my smartphone, I wonder if all of them are able to jump start a car with flat battery as long as I have a correct connector (e.g. clamp). Or ...
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votes
4answers
105 views

Does draining a battery typically leave it in a state that it won't take a charge?

My son borrowed a car and the battery seemed fine, car started fine every time. However it died after my son left some overhead lights on in the car overnight. We jumped it, and he drove about 20 ...
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votes
2answers
4k views

What is the difference between a normal battery and a maintenance free battery in a 2 wheeler segment

What is the difference between a normal battery and maintenance free battery. Is a maintenance free battery really free of maintenance or just it requires less no of charge cycles. I currently own a ...
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votes
2answers
64 views

2007 MKZ Engine Won't Turn

The engine turn has been "weak" the last week or so. This morning it was kinda cold and it wouldn't turn at all; I'd hear a slight buzzing sound and the dash lights would kind of flicker when the ...
4
votes
3answers
19k 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 ...
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votes
3answers
2k 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 ...
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votes
2answers
55 views

Why does my car die completely (after a battery recharge)?

Recently, the keys in my car were left in the ignition in the 'on' position and my battery was drained. I posted a question about replacing v. recharging (24930). I removed the battery from the car ...
4
votes
1answer
31 views

Weird charging issue

I have a 2005 Honda Odyssey that I changed the battery on about a month ago. I was a little paranoid that I might also have a charging problem so I've been keeping a little voltmeter plugged into the ...
4
votes
2answers
954 views

Should I get a battery tender for a car not used for long periods of time?

Could anyone please help me? I have a Honda Civic 170i car in South Africa which I keep in storage for long periods of time while I'm working in the UK. I'm going back to SA in August for 2 months ...
4
votes
1answer
26 views

2005 Civic - Strange electrical issues

My wife's 05 civic started to have some strange electrical issues. I'm not sure even where to start troubleshooting. She originally complained that both headlights died simultaneously. I assumed ...
4
votes
2answers
136 views

How much current should my car draw with the ignition on?

With the ignition fully off, my current draw is pretty much zero, but with the ignition on (to be clear - engine not spinning, starter motor not engaged) it increases to 2.5 amps (at about 11.5v, ...
4
votes
3answers
679 views

06 Ford Escape Dead Battery Keypad Entry

So, the Escape was sitting in the parking garage for a couple weeks with the keys inside and no spare available (don't ask, this is a shared company vehicle with keypad entry). The keypad isn't ...
4
votes
1answer
80 views

Battery light flashing after alternator install on 2004 Ford Escape

I just put new alternator on my 2004 Ford Escape, and now my battery light keeps flashing on and off, and it will sometimes stay on. The battery has been checked and is charging 100 % . The alternator ...
4
votes
2answers
223 views

Car battery won't charge above 50%

I had a problem starting my car after not driving it for two weeks. After charging the battery with a CTEK trickle charger via the cigarette lighter socket, the car started fine. I had my car battery ...
4
votes
1answer
312 views

My battery light came on, can I still drive?

I drive a 2002 Honda Civic and today on my way to work the battery light came on. I drove my car to auto zone and they told me my battery is no good anymore. However, I was planning on driving home ...
4
votes
1answer
150 views

White Powder Forming on Battery Hold Down Bracket

I replaced the battery on my 98 Mazda 626 GF 2L about a month ago. I haven't driven it for about two weeks, and noticed the voltage is down from about 12.57 to 12.02 so far. I just noticed that ...
4
votes
2answers
122 views

Car won't start with a perfect new battery

I have a Toyota Tacoma 2001 and my car won't start off the battery under the hood. The battery is brand new and has a full charge. It's been working perfectly for 3 months since I installed the new ...
4
votes
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 ...
4
votes
1answer
81 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 ...
4
votes
1answer
600 views

how to charge a dead motorcycle battery?

I have a 1983 Honda Nighthawk but the battery has died. I also have a trickle charger that you see in this photo but I'm not quite sure what amp and voltage settings I need to use for a motorcycle ...
4
votes
2answers
3k views

What is the correct/factory wiring for a Suburban 1998 battery/alternator?

I have included a picture showing what I have now on this Suburban. Note that there is wiring not shown in the picture which is a second electrical connection to the positive side of the battery ...
4
votes
1answer
325 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 ...
4
votes
1answer
2k views

What do battery numbers mean? E.g., 26R-5N

I went to Walmart and put my car's information (2000 Dodge Neon) into the electronic battery selector, and it told me to purchase a 26R-5N battery (which matches my current battery). However, what do ...
4
votes
1answer
335 views

What's the reason for a battery light coming on and becoming brighter as the engine revs higher?

The vehicle is a 1993 LandRover Discovery 3.5 V8. Today when I hopped in to drive home the battery light came on when I started up, and remained on. It gets brighter as the engine revs and just ...