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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1answer
20 views

2006 Honda Civic EX turned off wouldn't start, all lights work and windows but only clicks when ignition is turned over

Put new alternator on an the key has a chip but, the key was taped kind of when I got it. I just recently got the car an the person I got it from said it been sitting a little while. Dad she an her ...
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Replace Massey Ferguson 360 tractor battery

I've been looking for online resources on how to replace a 2018 Massey Ferguson 360 Tractor battery but could not find anything useful. We tried to do it ourselves by opening the side panel towards ...
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Honda Civic won't start (2017)

I have a push button start. When I push it the car doesn't start. Brake pedal seems hard to push. Warning lights flash - I.e. brake system, stability control, restraint system, electric power steering ...
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Picking proper battery type for car with dashcam

My car has a 55D23R battery rated for 356 cold cranking amps (CCA) as recommended by the manufacturer. I installed a Blackvue DR750S-2CH dashcam which has a parking mode. The parking mode allows the ...
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Is this an original battery for a 2010 VW Golf6?

Can someone tell me if the folowing battery could be the original for a 2010 VW Golf 6. And what is the production date?
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Battery drops to 10.5 volts after charging

A few days ago, my 97 Corolla had trouble starting. It cranks but doesn't start, maybe due to a problem with the carburetor. Figured I might discharge the battery, so I stopped my attempts at starting....
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Can one slightly charge a dead car battery with a portable battery jump kit?

The other week, my friend was trying to jump start a friend's very dead car battery with one of the portable power bank car jump starter kits. It looked something like the below: Image source If I ...
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Does battery tender need to be in enclosed area?

I have a 2009 Winnebago Access motorhome that is rarely used. I had a battery tender but it stopped charging the battery. I purchased another tender & enclosed it in a small plastic storage box. ...
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How to keep a new battery in a car from dying when I’m not driving it at all?

I haven’t driven my car almost at all in 4 months. About 2 months ago, it wouldn’t start, and it had a really old battery that needed to be replaced anyway, so I got a new one put in. Now, I stupidly ...
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1answer
53 views

Battery voltage drops to 0 when high load and then recovers

Morning. I took the car to the mechanic for a bearing change and to change the airbag clockspring. The mechanic told me he would see if the car has any electrical problems before changing the ...
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AM6 charging problem

I have an Aprilia MX50 (2004) and -although the engine runs perfectly- the charging voltage is low (around 4-6 V and it should be 13-14 V). I tried with another generator (the flywheel was still the ...
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AC Delco | Should this be worrying me? The battery is just 9 months old

Should this be worrying me? The battery is just 9 months old.
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Car goes silent when I turn the ignition key

I have a 1970 Chevelle. The last few times I have tried to crank the car, I had to jump it off. I charged the battery and this time when I turned the key, the dash lights came on then as I continued ...
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Maintenance - Battery charging under abnormal low-usage conditions

Background Due to the recent coronavirus lockdown, my car hasn't been getting the mileage it's been used to. For reference, it's a 2007 Mercedes E280, with the 3.0L 6-cylinder turbo-diesel & 7-...
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Car Battery Charging Current & Car Battery Confusion

Confusion Regarding Car Battery and Charging Amps What is charging current in Car Battery : If both the battery’s have Ref Capacity - 68, But 1st Battery has a Charging current of 4A and the 2nd ...
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3.8l v6 Mustang 2004, randomly won't start but disconnecting and reconnecting the battery works

This problem has occurred 3 times now, so it is a running trend. Every time it occurs, it goes like this: I get in the car, insert the key, push in the clutch, and turn the key all the way to start. ...
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1answer
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Car battery Confusion

The Battery provided to me in with the car is 60 Din (Ref C20 Capacity AH : 60, Charging Current A : 4) I’m looking to change my battery as its old and giving issues. The one which I want to go for ...
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When jumpstarting a car from another car can one connect the chassis of one car to the chassis of the other car? [duplicate]

When jump starting a car A using a car B, can one connect the chassis of both cars together instead of connecting the negative battery terminal of car B to the chassis of car A. In theory this seems ...
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Brand new lead acid car battery reads only 12.33v. Is it faulty?

Yesterday I purchased a brand new, maintenance-free, 12 volt lead acid car battery. Specs: 47Ah and 450CCA. Before I install it in my car, I measured the voltage with a catIII digital multimeter. It ...
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2011 Lexus RX replace with smaller-than-OEM-dimension battery

My vehicle is 2011 Lexus RX, and I replaced the new battery at https://www.amazon.com/gp/product/B000MS9VZK/ref=ppx_yo_dt_b_asin_title_o05_s01?ie=UTF8&psc=1. The new battery dimension is smaller ...
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49 views

Battery backup for radio

Hello all looking for some advice on a stereo I am building for my house. I have a car stereo, amplifiers and speakers, all powered by a 12 volt power supply. Everything works great, except I loose ...
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Battery Positive Post Meltdown

On a series of 6 inline 8 volt batteries, what causes the meltdown of the positive post on one of the batteries? Within the last two years we have had to replace 4 batteries in our golf cart. Thanks
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jump start car with battery disconnected [duplicate]

so this car won't start from a jump starter pack. I also tried leaving the pack in place for an hour to charge up the battery for longer before starting. I am thinking of disconnecting one cable from ...
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1answer
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12V AGM battery charging voltage

I have the following 12V car battery: Varta Silver Dynamic AGM 595901085 (12V/95Ah/850A), and the following car: Jaguar S-Type 2.7D. In the technical cars manual it says this: So in cold winter ...
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Upgrading Honda Accord Group 51 battery to a larger one

Ive a 2010 Honda Accord. The manual recommends a small group 51 battery (that's OEM as well) providing 500 CCA. Various websites say to upgrade to a Group 35 or 36 providing 650 CCA. In Chicago, ...
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12v car battery isolator switch keeps blowing

I've got an Audi TT MK2 2.0 TFSI which I'm preparing for track use. I want to fit a battery isolator switch as it will be sat not being used for long periods of time plus I think it's sensible for ...
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Replacing Chevy Cobalt battery

I have a 2008 Chevy Cobalt, battery in the trunk. The battery was replaced with one without a hose. Do I still need to attach a hose and where?
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3answers
61 views

Portable car battery booster pack - choosing peak A vs Ah

After adventures with dead battery, jump starts, and headaches, I just replaced my car battery (it was only 6 yrs old.. :( ). I am considering a portable booster pack to keep in the car, and had a ...
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2answers
40 views

Fuel pump problem

My daughter's car, a Honda Jazz, have not been used for more than 3 weeks. We replaced a new battery as the engine failed to start. Even with new battery, the engine still failed to crank. We took it ...
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1answer
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93 Seca 2 Wont start without a jump, battery good?

So i have taken the battery out and had it tested at autozone and they said the battery was fine. the solonoid is fine because if i hit the starter the motor starts to act like it wants to turn but ...
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1answer
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Electrical problems after jumping 2008 chevy silverado

After jumping truck, my stabilitrack light stays on, service brakes light stays on, and my radio does not power off when key is turned off (or when I open door). Not sure where to start to locate the ...
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Can I use a battery in my 1/4 ton truck which has more CCA than the “stock” battery? [duplicate]

I own a Ford Ranger XLT, a 1/4-ton pickup. The battery which the truck needs is 475 amps minimum. Can I use a battery which is 650 amps? It's the same group number (65).
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What Would Cause Only One Headlight to Work at any Given Time?

Say a vehicle has two working headlight bulbs. We confirm that the battery gets power to both bulbs and have seen both operating individually. What would be some reasons that only one bulb works at ...
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2answers
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Car battery won't hold a charge: can one estimate how much longer it will last? Or is it best to replace it?

I have a 12V 60Ah EFB battery in a 3-year old start/stop car. The battery doesn't seem to hold a charge. Is there any way to estimate / understand how much longer it can last, or if it's best to ...
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Is it normal for cigarette plug voltmeters to underestimate voltage?

I have two USB car plugs (you plug them into the cigarette plug and connect a USB cable to them) which also have a digital voltmeter. I noticed they both massively underestimate the voltage. Is this ...
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2answers
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EFB vs AGM batteries for a start/stop car: which is better and why? Can / should I replace EFB with AGM?

I need to replace an EFB battery in a start/stop car because it doesn't hold the charge - the battery is at 12.3V after 3 days and at 12.1V after 7. My questions are: Is it always possible to ...
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1answer
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Why do EFB and AGM start/stop batteries need registering / programming? How does that work?

I understand that EFB and AGM car batteries, used in start/stop vehicles, need some kind of registration or programming when they are replaced. Is this always the case? Can you skip this step if you ...
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What is the AC Delco battery manufacture date [duplicate]

AC Delco manufacture date of P 030 R. I understand that the 03 means March, but does the 0 mean 2000 or 2020? Thanks
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2answers
48 views

Can you charge a car/motorcycle battery with a portable power generator?

Can you charge a car battery with a portable power generator? Say you have a lithium, not petrol, generator, something like this or this, which you can charge in the electrical socket at home. If ...
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0answers
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Renault Modus 1.4 drains battery - whirring noise suddenly begins after 10 days not moving, engine cold, all switched off

I left my car parked up (Renault Modus 1.4) and did not drive it for 10 days (in 'lockdown'). Then one evening I heard a whirring noise in the engine (after 10 days quiet, totally cold and switched ...
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32 views

2011 Ford Mustang Gt “Check Charging System” light after changing alternator

My mustang started showing a code for "camshaft position sensor" so I replaced it. 1 day later, it came back on, same sensor so I started doing research. Everything I read said it was probably the ...
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Alternator: amperage when charging a car battery (and time to charge)?

What is the amperage of a typical car alternator when charging the car battery, and how long would the alternator take to charge it (let's take a 60Ah battery as an example)? I have seen multiple ...
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1answer
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Car battery charging: a few questions on connecting negative clips to ground (which I couldn't find anywhere)

I understand that, if charging a car battery without removing it from the car, you should attach the negative crocodile clip not to the negative of the battery but to a metal part of the car; most ...
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4answers
101 views

Shall I disconnect an EFB start/stop car battery before charging it?

I have a 64Ah EFB car battery in a 2018 Volkswagen car with start/stop technology. I have an Optimate 5 charger which supports EFB and AGM start/stop batteries:https://optimate1.com/om5ss/ I would ...
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1answer
48 views

Ok to leave Honda Jazz without a battery installed?

We have a 2009 Honda Jazz, which we're not using at the moment due to coronavirus restrictions. We're planning on taking it for a 15-20 minute drive once a week to keep it going, as advised in this ...
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1answer
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How is alternator directly connected to vehicle electronics?

I've tried a lot of research but I can't find specifically what I'm looking for no one has actually mentioned this and I've looked at various wiring diagrams which still don't prove how this is ...
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1answer
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Should I worry about the battery performance when not using my Xiaomi M365 not being used for a long time?

Before SARS-CoV-2 hit the world, I use to regularly ride my electrical scooter (Xiaomi M365) for commuting. Due to the epidemic the country entered an emergency state and we are all forced to sit @ ...
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1answer
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Diagnosing alternator or starter on a 16 Chevy Cruze LT

how do you know if it's the battery starter or alternator in a 2016 chevy cruze lt when i started the car it sounded like it wasn't going to start also not sure if it's related but i had to get a jump ...
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Citroen c4 2013 1.6 hdi

Recently changed battery on c4. Still had electrical circuit fault showing on screen. Car worked for a few days but then I went to it one morning and the rear windscreen wiper was working but not ...
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2answers
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2014 Cruze lt won’t start. New battery, New starter?

Went to jump start car after sitting over night lights and wipers came on. Heard 5 clicks and engine wouldn’t start. After 45-60 seconds with jump car shuts off completely. After replacing the starter ...

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