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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2answers
34 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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1answer
731 views

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
22 views

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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1answer
19 views

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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25 views

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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0answers
24 views

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
55 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
30 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
18 views

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
36 views

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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1answer
33 views

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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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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19 views

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
45 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
17 views

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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22 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
53 views

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
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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
42 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
41 views

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
26 views

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
24 views

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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1answer
75 views

Charge car battery with a table top PSU

My car's battery got flat and the car doesn't start any more. I have a table top PSU rated for 0-15 V, 3.5 A max and 1.7 A continuous, and would like to use it to let the car start again. The battery ...
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1answer
798 views

If car starts and cuts out after 10 seconds, does that mean its definately not related to cca?

If a car starts I assume it means there is enough cold cranking amps to start the car. Therefore if it cuts out after a few, 10 or even 30 seconds it means the cut out problem is definitely not ...
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1answer
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2000 Toyota Corolla will not start until hitting battery terminals

I have a 2000 Toyota Corolla which started to display a symptom during cold weather (-20 - -30 C) where you would insert the key, turn in partway, activate the internal electronics, and then turn it ...
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1answer
74 views

What damage can I cause by plunging a car battery section hole with wine cork?

I have lost one of the plastic screws on my car battery. Since they are not a part that is being sold, my options were limited to buying a new battery or to become creative. I took a wine cork (...
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2answers
340 views

Applying Silicone Grease to Battery Lugs and Cable Before Shrink tubing?

I've habitually applied some 'liquid tape' then some spray-on silicone grease after connecting battery terminals. This seems to work within a flooded-leaded batteries life cycle providing you can keep ...
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1answer
62 views

Jumping a car and attaching cables after starting donor car's engine

I was jumping my friend's car today in a place with no cell phone reception. He argued that the jumper cables should be attached after starting the donor car's engine. He said that it would decrease ...
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1answer
35 views

Can low battery voltage cause brake noises? - 2006 Civic

Driving a 2006 Honda Civic, right rear brake makes a clunking noise under medium to high braking. It sounds like the ABS but doesn't have the pedal pushing back like ABS does. Went to my usual ...
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0answers
37 views

Why won't my car start? (Starter has recently been replaced)

I should preface this post by saying my car has had issues starting for at least a few months now. It is a 1996 Nissan Maxima and it has well over 100,000 miles on it. I have had very little problems ...
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0answers
16 views

Battery problem in Activa I with in 3 months

Within 3 months Activa I getting battery problem, if Activa not ride for 3 days it's ideal for 3 and more days it's not getting started without kick. It's irritating ,worst scooter . Previously I used ...
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1answer
34 views

My car battery can't be charged while driving, is this a problem with a bad generator?

The battery voltage started with 13 volt and dropped to 12.1 volt after driving the vehicle for a few days. I thought the battery should get charged while driving. Is there a problem with the ...
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2answers
83 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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1answer
106 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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3answers
126 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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5answers
926 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
43 views

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
92 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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1answer
29 views

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
66 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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3answers
78 views

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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3answers
76 views

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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