Questions tagged [battery]

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 motor vehicle.

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3answers
49 views

How can I prevent, slow or reduce white corrosion build-up on my battery?

I have an 02 Civic SiR (Canadian model) with a maintainable battery. I check and refill the electrolytes every few months with distilled water. The battery is about 4 years old. I use a Battery ...
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57 views

Should dual battery negative terminals be connected?

I have a main battery connected to the positive terminal to an isolator to the positive terminal of a battery in the rear. Half the diagrams on the internet complete the circuit and connect the ...
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61 views

Grounding auxiliary battery & load

I’m planning to add extra deep cycle battery to my RV. It will be charged by the alternator safely by an isolator. I’ll use national parks’s power outlets to charge it. My main concern is the ...
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Battery case melting

I have a 2004 Ford Expedition, I have noticed that around the battery post on the negative terminal, that the case of the battery seems to be melting. I have noticed a lot of corrosive build-up on the ...
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3answers
58 views

Car battery booster/jump starter. Are they worth considering at all?

I have a Civic which I don't drive often and mostly sits in my building's underground parking. The battery has again discharged on me. While I have jumper cables and know how to use them, I have to ...
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821 views

When jump starting a car, can I attach the negative cable for the car with the dead battery on its body?

I have seen a few videos saying that there is a risk of getting an explosion because of hydrogen igniting if you attach the negative cable to the negative terminal on the car with the dead battery. ...
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1answer
28 views

TotalElectrical failure Mondeo 1.8tdci 2008

While charging a flat battery all on the Mondeo all of the electrics failed (lights, dash, not starting, Windows, ect) when I installed a new battery on the Mondeo still nothing. Any ideas on what ...
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Car won't start - replaced alternator - didn't help

I have a 5-6 years old Mazda 6 2010, 2.5L engine. My car simply won't start. I had this issue yesterday, so I called roadside assistance and they were able to jump start my car. I drove straight to ...
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Wiring electric helmet directly to snowmobile battery

I have an electric snowmobile helmet with a RCA plug and not instructions. The black wire has a connector for the screw terminal on the battery, but the red wire is bare. What do I connect the red ...
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1answer
612 views

Motorcycle Starting Issue - no longer starting after attempting to jump with a car battery

I tried jump start my bike with my car battery because the motorcycle battery was really low and would not start. I mistakenly touched both ends of the jump leads together and cause a big spark, ...
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63 views

Starting diesel car on low battery

I am going to try starting my car after long time standing in the street (month). I know batter will be in poor condition. What is my best chance to start the car? My car has some sort of engine ...
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73 views

Is there a way to reliably test voltage of a 12V battery when it's not disconnected (i.e., partly loaded)?

I'm having an issue where a fully charged battery doesn't necessarily report the proper voltage when checked from the socket within the car, because in order to have the socket activated, the car has ...
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Isolator or Separator for my Hitachi alternator

I am looking to charge an auxiliary battery for my motorhome, but am not sure if I can use an isolator given the alternator. It is a Hitachi LR160-78B 60a alternator in a 1985 Nissan 720 pickup (...
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1answer
120 views

Connected battery the wrong way, what should I do?

I connected the battery the wrong way on an old Toyota MR2 turbo. The interior lights stopped working, otherwise the car starts and seem to work, exterior lights work. How do I repair the interior ...
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3answers
533 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. I called a mechanic. He ...
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1answer
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How could a battery issue lead failures in ABS, Cruise control, stop-start, etc?

We have a 2014 VW Golf (diesel automatic) and recently we have started getting sporadic "christmas tree" errors when starting it. A few seconds after starting the engine, we get error after error ...
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2answers
47 views

Charge a car battery with a solar panel that only has USB outputs

I currently have a solar panel (this one), that is able to output 24W of power at peak capacity. I would like to be able to use this solar panel to trickle charge a car battery, but the panel only ...
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4answers
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Is a bad battery bad for other components too?

I think my battery is on the way out - on cold mornings, it turns the engine over very slowly to start with, and takes a number of turns before the engine finally starts. This has been the case for a ...
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531 views

Is a 13.07V alternator voltage too low?

I'm having some problems with a 2006 Mini One D (1.4 l diesel engine). About a month ago the alternator warning light turned on (it only turned off over about 4000 rpm). The belt looked good, so I ...
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What is the simple way of recharging a discharged battery?

My battery is showing 11.5 which I believe means its discharged. I'm not sure how to recharge it. Will simply using jump leads from another car and running the second car for n minutes cause the ...
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Can I use a higher powered battery?

I have a 1999 civic and a 2006 hyundai coupe. civic battery is discharged and just for testing purposes Im thinking why dont I put the hyundai battery in the civic and see if all is well then I can ...
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Why has battery volts power gone lower and does it sound like the battery is my problem?

I previously asked this question Can low battery cause car to cut out? . sorry I don't know how to link. I have cleaned the terminals with baking soda and vinegar and initially the car ran for 1 ...
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Can low battery cause car to cut out?

Honda Civic vti 1999. Car starts and cuts out immediately. On a few occadions it has started on stayed on for longer e.g 30 seconds to 1 minute but it still cuts out again. The battery is showing 12....
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Could corroded or incorrectly soldered battery teminals cause parasitic drain?

One of my friends has a 2007 Lincoln MKX that's been having some electrical issues lately, the battery drains to dead overnight. It's been looked at by several people (including dealership), the ...
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1answer
83k 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 ...
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54 views

Using a device with external power and receive data from the CAN bus

I want to keep a device in always on situation in the car. I do not want the device to drain the car battery. The car is used at least once in two days and the current consumption of my device is ...
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1answer
30 views

Assessing battery condition on an EV

I'm considering the purchase of a used EV (electric vehicle, with no backup internal combustion engine). From what I understand, the battery condition of an EV, and therefore its maximum range ...
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1answer
30 views

Check Engine light came on, turns out, i had a bad battery but it threw a bunch of codes?

Okay, so I drive a 13 Hyundai Genesis Coupe 2.0T. Last night my check engine light came on. I took it to advance auto today to have the code read. It threw a bunch of codes which were Throttle ...
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1answer
186 views

Jaguar xk battery dying?

My car (jag xk 2006) went dead when I left it parked for 3 weeks. Understandable. I charged it and all ok. I made the same mistake a couple more times. Then one day when I was pumping up the tires at ...
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1answer
77 views

Car takes multiple attempts to start - bad battery?

It takes me 2-3 attempts to start my car the last few days. Yesterday it didn't start at all (no noise, but the lights/radio worked) and started after I got a jump and pumped the accelerator. I'm not ...
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3answers
26 views

Strange electrical issue with 2001 Civic

I have a 2001 Civic, manual, and I began experiencing an odd electrical issue, I’m hoping someone might have some insight. This is a bit long, so I apologize in advance. Roughly a week ago, my ...
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1answer
37 views

S10 won't start

I have a 2002 s10 that won't start. I had work done to repair an oil leak, drove it home, and it died. Thought it was maybe the battery, which had, in fact failed. I replaced the battery, and it ran ...
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What is wrong when the car dies after you take off the jumper cables on a 2013 dodge journey?

What is wrong when the car dies after you take off the jumper cables on a 2013 dodge journey?
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101 views

Do I need to replace my batttery or will it recharge by driving?

My question is different. That question is asking about how long to start the car, I’m faking about how long it should stay on after it’s started because it keeps shutting down again. I put a new ...
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1answer
34 views

Attempted to jump my car, it turns over and starts but then shuts off?

I was unable to drive so my 2006 Honda Civic sat idle for a little less than 3 months. We attempted to jump start it and while the cables were connected the dash lights came on, the headlights would ...
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20 views

Electrical failure [duplicate]

While fitting a new battery for the old one I erred by placing leads in the reverse order, when I corrected my mistake I found when i try to start the car all switch off for a couple of minutes, when ...
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1answer
49 views

Starter or Battery? (or Alternator?)

I have been lent a car and I took it out for the first time last night (it's a 2003 Chrysler). The car had been left for a while and the battery had been disconnected. I connected the battery and ...
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2answers
90 views

2006 Chevy Impala dying while driving

I have a 2006 Chevy Impala LS (flex fuel) while I'm driving the dashboard sends off a warning of "reduced engine power" as my car loses power and I lose the ability to use my gas pedal. Meaning that ...
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1answer
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everything electrical works until i start my 2003 mercedes C 320

Everything works fine with the key in acc. position, but when I start it every thing stops working. No lights, no radio, no heater, no nothing. Any thoughts?
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1answer
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Little/no charging but alternator and battery test good

For the past few months, and seemingly getting progressively worse, I've had a charging problem: both battery and alternator test good (checked via charger with alternator test mode and higher-end ...
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2answers
63 views

How to charge a 2nd car battery from the car?

I'm going on a camping road trip and need to power my CPAP. Instead of running one long cable from the car, which has its own issues, (dead battery/car, shorts, tripping) I want to get a 2nd car ...
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9k views

How do I know when a VARTA car battery is produced?

I have a hard time finding when my car battery was produced - can't find any defintive information. The battery is VARTA H3 Silver Dynamic 100Ah with the following embossed letters in the upper right ...
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1answer
100 views

Battery drained 10 amps with key in the dashboard - what can it be?

Old Honda Civic hatchback 1.4i, manual gear, air conditioning. No longer starting (see below the history). I noticed that with the key off or in the dashboard in position I there is a small 40 mA ...
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1answer
33 views

What battery should I use on a rarely used vehicle?

I own a 2001 Toyota Camry that I rarely use. I only drive once a month or so, but can go two or three months without driving at all. Considering the tendency of a SLA battery to die when drained is ...
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2answers
57 views

1998 Ford Expedition: Symptoms of dead battery while jumping

I'm attempting to get my 1998 Ford Expedition 5.4L V8 to start after sitting for a few months. Initially, the battery was dead, so I put it on my charger for a while. After the battery was charged I ...
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2answers
69 views

Not able to start my car

I have a Camry that has been maintained regularly. The car battery is about 4 year old. 1) For the past 2 weeks, when I was to do a cold-start, it gives some cranking sound and engine shuts down in ...
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1answer
65 views

New battery shows white signal very soon!

Bought new SF sonic flash start battery and it's just a month old. It has 3 signals..green is ok, white is needs charging and red is contact dealers. I checked for battery indicator status and it's ...
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headlights not working but they do if jumping battery

im guessing the solution is to replace the battery but i dont want to spend $100+ on a battery if that is not the fix. here is the scenario: headlights stopped working so i bought some fuses and ...
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2answers
73 views

Frozen maintenance free battery

I have a frozen maintenance free battery with a life of 14.5% life according to my dashboard display. I really can't afford to replace it at this point. I had it boosted and let it run for a half hour ...
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2answers
1k views

Causes of 2012 Honda Civic alternator not charging battery unless headlights are on

What are the possible causes of a battery charging only when the headlights are on in a car with both a new battery and a new alternator? A couple months ago, my 2012 Honda Civic LX wouldn't start ...

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