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
51 views

Can an OBD2 tester do a battery load test?

This Autophix device device was suggested by a review as the best of five battery testers. The text implied that includes testing cranking amps. But it can only connect to the computer—has no way to ...
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Do I need a battery maintainer, a portable jumpstarter, or a completely new 12V battery?

Hybrid vehicle has not been used for several months due to COVID-19 pandemic. Vehicle has a 3 year old 12V AGM battery. Battery is not used as a true "starter" battery; it just boots the ...
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Remote Key Fob working only inside the car (close to receiver)

I am struggling to get my Peugeot 308 2-Button Remote Key back to work. I noticed first issues when my Remote Key unlocked / locked the car after several attempts. Then one day it suddenly did not ...
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1answer
80 views

What is a point of contact to measure the live (red) electric cable?

The car starts fine in the morning. Since the battery has signs of leakage, I remove it in the afternoon, and put a new one, with a factory sticker indicating it was made two months ago. There is no ...
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2answers
1k views

Need advice for changing battery terminals

Hey so I have a 2000 toyota corolla 4A-FE manual, its had connection problems in the past so got a new battery and it didn't start one morning so I tightened the terminals (and put fuel in it) and its ...
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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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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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4answers
7k views

Can a lithium-ion battery really start a truck?

There are some compact lithium-ion powered devices on the market that claim that they can start cars and trucks. Youtube is full of videos with reviews and people actually starting cars with them. And ...
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how fast does the alternator charge the battery?

It would appear that the common word of wisdom is that car alternators provide 50A of output. I actually looked at the supposed specs for my 2008 Jetta 2.5L on the internet -- a compact car -- and it ...
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1answer
575 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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What are the risks of jump-starting a modern car?

I'm aware of the general risks, i.e. igniting hydrogen gas with a spark, and accidentally hooking up the leads backwards. But I have been reading conflicting information about whether one should even ...
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Car wont start, starter will click, dome lights and headlights are dim

Ive got an 08 Impala that was running just fine two days ago. Yesterday I went to get in to go to work and it wouldnt turn over. The interior lights and headlights a very dim. I tried to jump it, and ...
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1answer
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2006 Toyota Seqouia battery will not charge after sitting up for 6 weeks

Vehicle has not been used in 6 weeks. Will a charger work if the battery is completely dead and the charger "sees" no current?
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V-Star 250 No Power After Jumping

I have a 2012 V-star 250. Everything was running fine until I left the lights on all day while I was at work (RIP). Battery was dead so I jumped it with my car. Started up fine and rode it about 20 ...
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3answers
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Charging battery with battery charger vs jump starting and running the car

Got a 1998 Toyota Camry that has an empty battery and am wondering what the best course of action is. I have a battery charger that I am thinking of using but it's currently inconvenient to do. My ...
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Under what circumstances should you use the Fast Charge or Trickle Charge settings on a car battery charger?

When using a modern battery charger to recharge a basic car battery that is in good condition, but is run down to the level that it is unable to turn an engine over, under what circumstances should ...
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1answer
776 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
281 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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846 views

My Chrysler 300C drove through high water now won't start

I drove through a puddle of water. No problems I went home shut it off. Waited a couple hours tried to drive again. Started for a few seconds and shut off did that three times now it won't turn over ...
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1answer
210 views

After startup my battery is at 10.5 volts then after starting it up again it is 13.8 volts

After initial startup voltmeter says my battery is at 10 volts, the battery saver mode comes on and it says to check battery charging system. Then after turning it off and starting it up again ...
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1answer
107 views

2012 Honda Fit Won't Start - No Accessory power, only dash lights

Car won't start; when I attempt to turn the key, there's no turning over or clicking of any kind. No accessories come on (A/C, radio, etc.), but the interior lights will turn on. They seem slightly ...
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1answer
68 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 safely upgrade to an AGM battery?

AGM batteries are capable of being charged at a faster rate, and may draw additional amperage from the alternator if it is not regulated. Many cars that come with AGM batteries have special charge ...
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1answer
610 views

2012 Honda Civic won't start - no power, no lights noting, tried jump start too

My 2012 Honda Civic is not starting, not dashboard lights nothing when I switch it on. At first I tried to jump start the car however, nothing. Then I searched the internet and realized that this ...
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1answer
817 views

Nissan Note 2012 battery drain

I have had problems with my 2012 Nissan Note (the boxy model). The battery would be flat after a couple of days, even when driving occasionally. After leaving the car parked and locked for 20min, ...
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3answers
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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
169 views

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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1answer
53 views

How much electric power does my truck consume?

I have a 2011 Nissan Frontier Pro-4x. I want to get a general idea how much power I could draw from my alternator while driving. For that, I want to find out how much power my truck uses in the first ...
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3answers
325 views

Can an 18V-5W Solar Panel Provide an Equalizing Charge for a Battery?

I recently finished a project in which I installed an additional cigarette lighter port on my car that was always on (the existing one was only on when engine was running), and connected a small solar ...
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3answers
57 views

Brand new battery sitting for 3 months, doesn't hold charge anymore

I have a 2017 Toyota Yaris Hatchback. The car had some cranking issues. I did a cranking voltage drop test (dropping to min 7v when cracking), it seemed like the battery was done. I replaced the ...
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1answer
118 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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5answers
9k views

2013 Honda Civic battery hold down bracket plastic cap wont come off

I'm trying to replace the battery on my 2013 Honda Civic. I gotta take off the hold down bracket but there is a little cap on top of the bracket nut that's keeping the cables (needlessly) secure. ...
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1answer
32 views

How to hook up wireless charging pad to battery of my motor (Honda CBR500R 2020)

I want to hook up the following wireless charging pad in combination with my RAM mount X grip to my motorcycle's battery. I am a complete noob when it comes to this electronics. How can I make sure I ...
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2answers
1k views

Any means to add more batteries to an electric car?

A lot of the electric cars available today (except Teslas) have too small ranges. Inspecting them I see a lot of trunk that I might want to relinquish in exchange for extra range. However I don't see ...
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1answer
36 views

VW EOS ESC Error message

My VW 2015 EOS works great but since my last tire rotation, the ESC Stabilization Control Error appears while drive on dry roads at a constant speed. Engine slows, cannot accelerate. Must pull off ...
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1answer
65 views

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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2answers
1k views

Battery issues - Honda Accord 2009

I have a brand new battery and alternator my car runs fine. When I am idling in traffic the battery light flashes on and off and on. It eventually goes out when I pick up speed. I had Honda do ...
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2answers
512 views

Opel astra H 1.6 16v 2006 battery and check engine light

I have an Astra H 2006 1.6 16V, and battery light and "check engine light" came on so I took it to the mechanic (in Sweden). They said it was an alternator problem (which I also thought to be the ...
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1answer
50 views

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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1answer
50 views

How to test a battery the alternative way?

Aside from buying a battery tester, is there any other way to check it? I presume under full load with the engine, lights, etc.
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3answers
5k views

battery fully discharged, got a jump-start, but what do I do now?

My battery was fully discharged (forgot to turn off headlights for a few hours). The car wouldn't even unlock from the remote. What should I do after getting a jumpstart?
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2answers
83 views

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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2answers
1k views

Battery immediately drains upon Negative cable connection

Experienced problems starting engine. Removed battery, checked fluid level, hooked it up to trickle charge, and it readily accepted the charge. Put it back in and reconnected both cables, and engine ...
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2answers
21k views

Car battery - Disconnected just positive while doing work

I've installed an extra 12V source in my car and everything is working. While installing it I removed the positive terminal from the battery and left the negative connected. (Resting the positive on ...
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1answer
35 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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0answers
38 views

"Remove the negative cable first" -- how important is this advice, and why? [duplicate]

To my understanding, the reasoning for "remove the negative cable first" is that if the positive terminal is exposed and you somehow make contact between the positive terminal and any metal ...
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1answer
21 views

How to check GN 125H battery

GN-125H haven't battery indicator and not a kick starter. How to know battery status. How to know battery was in deadline.
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3answers
2k views

Hybrid battery not charging fully

I have Toyota Estima 2.4 petrol/electric hybrid 2010 (UK 60 reg) that I bought about 4 months ago. So far I had no problems with anything until a couple of days ago the HV battery stopped charging ...
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1answer
33 views

Gen 2 Prius hesitates ... Is there a problem with the HV Battery? [closed]

Is there a problem with the HV Battery? Gen 2 Prius hesitates.

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