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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35 views

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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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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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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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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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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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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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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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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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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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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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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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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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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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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Why does a relay not short the battery?

I am planning on hooking up a 4-pin relay to supply power to ignition coils on a motorcycle. The on/off switch on the diagram below is the ignition switch operated by the key. Ignore the fact that ...
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183 views

How to connect a jumper cable to this battery?

Today I tried to charge the battery of a car that has been standing still for about 2 months with my own car. When I tried to connect the red cable to the battery of my car I was confused on where to ...
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Can I trickle charge battery through OBD2 port 2007 civic

Trying to determine if 2007 civic OBD2 port is live with key off so I can trickle charge with a solar panel
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turn off battery diconnect whileunder load

If I turn off my battery disconnect while under load will it work such as my starter on my motorcycle is push button direct hook up no relay , if I disconnect my switch will it let go or ark out and ...
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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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Is a 15 minute drive to and from work enough to keep a battery topped off?

Me and my SO were given that as the cause of our battery being randomly dead every month/month and a half. Her drive to and from work (about 15 minutes) is not enough to keep the battery from ...
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Trunk Release Malfunction

2003 Mini Cooper The battery is dead so the key fob and toggle switch on the dash don't unlock the trunk. I pulled on the release ring under the back seat, but it only partially releases the trunk, ...
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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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Prius C Long Term Storage. Do I need to unplug the HV battery?

I will be going out of country for at least a year. Do I need to remove the HV battery before I leave or will I be fine?
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Spartan Lawn Tractor

I know what causes battery terminal corrosion but I've sort of got a dilemma. The long screw that holds the battery in place corroded to a concerning degree. It looked just like the positive terminal ...
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Should I replace my discharged motorcycle battery?

I have a 250cc fuel-injected Honda motorcycle, it uses a 12v 6Ah battery (Yuasa YTZ7S). Its only add-on is a GPS tracker with alarm. Recently battery got discharged (engine couldn't start), so I ...
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Car won't start after sitting for 2 years even with a jump. Is it a starter or alternator issue?

My parents have a 2001 Pontiac Aztek that's been sitting for two years. Apparently, before they stopped using it, there was an oil leak that caused starter problems (they couldn't find the leak), and ...
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1answer
288 views

Can I use a lower Ah battery in my motorcycle?

Internal combustion, 250cc fuel-injected motorcycle. Original battery is 12V 6Ah (10 hr) CCA: 130A The new battery is 12V 4Ah (10 hr) CCA: 70A Should I worry for anything apart from the actual ...
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Why battery charger has rated amp hours

I have gotten a car battery charger as a present which is rated at 6A max and is also labeled up to 65Ah max. I'm not understanding why there is a battery capacity indicated on the charger when the ...
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2answers
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New ish battery, new alternator, battery light stays on (dim)

Battery was replaced 7-8 months ago (Interstate batteries brand) Got new alternator today after car died When picked up, battery light was faintly glowing Mechanic said everything was fine and it's ...
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Why does my truck turn off

Hi I have a 2000 F250 truck and I am experiencing difficulties keeping it started . So my question is when i jump it, it's fine as it's in park but when I go to put it in gear it shuts off? Or when I ...
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powered window and back windscreen wiper anomaly

At first i thought it was random, then i realised that there is clearly a pattern: I start the car then i check and both the wiper and the window works as expected. 20-30-40 minutes down the road i ...
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197 views

Car battery voltage always drops even after full charge

I bought a new 2019 Kia Forte last year, from the day I received it, its battery (lead-acid AGM) read a slightly low open voltage of around 12.45V. I figured out the car must have been driven on the ...
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Battery shows 13v after adding acid but won't start car

My car battery won't start the car so I added acid and water and test the density with a hydrometer, now it is 1250. The battery light is turned green after adding acid, but voltage reach 13 (I don't ...
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Powering a large electrical load with an alternator and high idle system

I have to install an inverter in a work truck that will power work lights, some power tools, and other equipment too be used while the truck is parked. I've calculated the load to be at max 750 watts, ...
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2002 Civic not starting when cold in GA tmeps 40's

So, I am having the same problem but in GA, USA. My car will not start when it's cold and I'm not talking negative's. This just started a couple of weeks ago when the temps dropped below 40 degree F ...
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1answer
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Alternator health check

My car (Fiat Grande Punto MY2008) has been having an occassional battery light and failure of the power steering. Perhaps once in every 10-15 startups, and is resolved by restarting the car. The car ...
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1answer
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Is my car battery health bad and should I replace it?

I bought a 2010 Golf in march and I do not know how old the battery is (no dates on the battery) and with winter coming in I feel a bit nervous. Usage I do not use the car very often but I try to ...
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Why are these wires sticking out of battery terminal?

Could someone please explain why there are copper wires sticking out of the positive terminal on my battery? I’m trying to jump start it without success, and want to get it to an auto parts store to ...
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3answers
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Motorcycle LiFePo4 replacement battery vs Gel vs AGM

I've researched quite a bit but could not find a definitive answer to this. Background: My old bike (already sold) had a starting problem - after a few months it would barely spin the engine up and ...
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Replacement AGM battery for 2007 Ford Fusion

I live in a cold climate (northern Canada) where temperatures now are already -20C during the day. I have a 2007 Ford Fusion SEL 3L which doesn't get driven much and is parked outside, without a ...
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2013 Mitsubishi lancer and the battery terminal snapped

Im looking for a replacement but the only part that pops up is a 2003-2006 lancer battery terminal, my question is would this be a sufficient replacement?? It does look the same
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BMW E46 320D Battery Replacement

My 5 year old battery is dying, and I'm looking for a replacement. When this one was fitted, the car wasn't mine yet. There's also no label on the top with some details. Therefore, I wanted to know ...
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How to tell what type of battery this is?

I would like to know whether it's either a lead acid wet cell, lead acid gel, or AGM battery. After reading a bit I see one method is the remove the battery and give it a shake to see if it contains ...
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3answers
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Can anyone help me interpret this multi-meter reading?

My 2008 Outback’s battery goes dead when it sits for a night or two. I’m looking for a parasitic leak. Can anyone help me interpret this meter reading? I have it in parallel between the neg battery ...
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1answer
489 views

Jump starting using a car with no negative terminal

Hi the the only car I have to jump start my own has no negative terminal so will it still work if the black lead is just connected on a metal part of each car?
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1answer
353 views

Car no longer starts, behaved weird before giving up

This is a ten year old diesel car from Ford, the Ford Focus DA1. Let me start with the chain of events: Car has been standing outdoors for two weeks without use, had been almost frozen but not ...
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4answers
367 views

Does car need to be driven rather than idle to ensure battery recharged?

My car is inactive for months at a time. I started it up and just left it running idle for 30 minutes. Would that be sufficient to recharge the battery or does it need to actually be running at ...
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78 views

How long can I run car accessories for before my battery goes flat?

I have a Hyundai i10 1 litre 2015 model. The battery it uses is 52ah and 12V. Given the scenario that the car battery is sufficiently charged after a long drive, the engine is off and I have the ...
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1answer
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Any benefits of a relay over a dead mans switch between two 12V batteries apart from preventing discharge of starter while car is off?

I am fitting a second "leisure" battery in my car. It will be a 12V 115-150Ah AGM lead acid battery for use when the engine isn't running with loads up to 500W, generously, in practice It will be 250W ...

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