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
479 views

How long will battery last if disconnected at full charge during winter?

My car won't be driven during the winter, so from about November through March (5 months) it will sit idle. If I disconnect the negative terminal on the car battery when it's at full charge, should I ...
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Battery set up for camper

Just wondering if it's safe to run the following set up. In car - starter battery - isolator switch - second battery (lead acid deep cycle) - Anderson plug to rear of car - 2x AGM batteries in the ...
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94 head gasket replacement now my car wont start

I replaced my head gasket and once I got to putting everything back together my car wouldnt start it wont crank and I have no power going to my car and suggestions
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87 views

Car refuses to start with repeated clicking but can be jumped

Day 1: My 2013 Infiniti JX35 won't start. When I press the ignition button, the car loses all electrical power and I can hear repeated clicks under the hood. I installed a new battery, and it started ...
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68 views

How to diagnose if battery is faulty or alternator is faulty

Little Background: I own 2016 Mazda CX-5, battery that came with car was not holding the charge for long, so after some research on which battery to replace it with, I decided to replace it with ...
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62 views

Lexus CT200h “stuck” in neutral after accident

I bought 2018 Lexus CT200h with slightly damaged front and it won't shift into Drive or Parking. After I push Start button it shows me that the car is in Neutral. Trying to put it into Drive or ...
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27 views

Is it possible to repair a newer lithium ebike battery with freezing damage?

I leant my bike to a family member, and he put it out of use for the winter. Unbeknownst to me, he left the battery outside in -40°F weather all winter. I came to pick the bike up this following fall ...
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22 views

Can a battery get overcharged/how to prevent it?

When charging a battery with a charger or using no charger and putting one battery on another battery can the low battery or both batteries get overcharged in some way? What will happen to the ...
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56 views

Is it ok to charge battery inside car or home with no one in it?

I read that when charging a battery(charger to battery) or battery to battery(I imagine) a toxic chemical/gas is released from the battery. As such you should ventilate and not be in the home whilst ...
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81 views

If driving doesn’t recharge a battery is there any point putting it on a charger?

Using a charger I managed to bring battery up to 12.18 volts or so. The car is starting up now and running however I notice on starting the battery falls below 10 volts(8.x or 9.x volts) and then ...
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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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Is iPhone draining car battery?

If you plug your smartphone into your cars usb cable which is part of the stereo system I believe, I guess it’s charging itself whilst plugged in. Obviously you should not leave it in accessory mode ...
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170 views

Will disconnecting battery lead to remaps being reset?

Civic Coupe VTI 1999. If car has been remapped, will disconnecting battery for a long time cause any remaps to be reset?
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What factors can make a battery appear better or worse than it is?

With regards to better, I know surface charge is one so best to leave it for a few hours and check. Not holding your multimeter properly. Would the battery being connected to switched off car cables ...
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45 views

How many volts would a battery with a dead cell show?

I read that a battery with a dead cell would not charge above 10.5 volts? However if each cell is 2 volts wouldn’t it be more correct to say a battery with a dead cell will charge up to anything ...
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Why is isolated car battery losing charge so quickly?

Battery had been left no start for months until I found it at 0.45 or so. Used a charger after an entire day it got to 2.95 volts. Then connected jump cables to the isolated battery and revved it ...
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106 views

Why did car just overheat and aftermath?

Hyundai coupe 2006. I tried to recharge a deeply dead battery by attaching jump wires from donor car directly to terminals of isolated battery(not in car). I kept the donor car constant at 4000rpm for ...
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111 views

Is it safe to drive a car without fixing battery in place

I was trying to change my battery but I overturned and broke the bolt that connects the rod to the frame which fixes the battery in place. Now I need someone to remove that broken bolt and give me a ...
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210 views

Will a battery with low amps work on a car which usually uses more amps?

I previously asked this question Can I use a higher powered battery? And seems everyone was saying it’s fine since both batteries are 12 volts. Though people mentioned if the car had lower cca it ...
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Bad alternator, or just a regular dying battery?

The battery in my car is dead, and I'm not sure whether it's the alternator's fault or just the natural death of an old battery. Vehicle: '04 Honda Accord. The alternator was replaced 4 years ago. As ...
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62 views

Can a dead battery be charged by directly connecting jump start leads to it?

I know you should be using a chArger and not jump leads as this can affect alternator etc if donor car. But still want to understand. If I add the jump cables directly to isolated battery terminals I....
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189 views

Tipping battery upside down or it’s side?

I have a battery that’s needs replacing but decided I would use the battery from my second car and put it inside because I’m thinking of selling it as is and just wanted to do some diagnostic work. I ...
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Affected sensors when boosting another car

I own a 2017 Kia SUV and periodically I'll give my neighbor a boost on their 2002 Liberty Jeep periodically, maybe once or twice a month, until they buy another battery. So I noticed a couple of times ...
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Trying to Charge Honda Fit 2015, Car's Headlights Flash Once Charging Starts

I'm not a car person at all, so thanks in advance for any help! My wife's 2015 Honda Fit hasn't been used for months (thanks to Corona). I'm trying to use a Schumacher SC1307 6/12V Automatic Battery ...
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1answer
45 views

Can I use a 100AH battery instead of a 74AH battery in my Passat 2.0TDI, 2012

I want to use a 100AH battery instead of a 74 AH battery in my car
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Will jump starting a car work if starter is not working?

If starter is not working, will jump starting a car work?
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1answer
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Engine hesitating to start when clutch pedal is pressed

Recently I started noticing a weird problem with my car (Maruti Alto LXI 2009, Manual petrol with carburetor) that when I press the clutch pedal and the car is in gear it hesitates (it cranks but not ...
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35 views

Cause and fix for craftsman lawnmower catching on fire near battery - under seat?

Replaced battery in craftsman lawnmower 42" deck rider model 247203744. Started up fine. Rode it for about 20 minutes... boom caught on fire under the seat by battery. I am thinking the ...
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270 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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Car won’t start

I have a 2008 Pontiac Grand Prix, I try to turn it on and I will hear a clicking noise, the horn will go off as well as the windshield wipers. My steering wheel gets stif as well as the brakes. The ...
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1answer
25 views

Car won't start when it's a little cold outside

I have a Mercedes A140 (2001) and the engine won't crank if the battery is "cold" - around 10 Celsius. Yes, the car starts just fine after I've heated the battery indoors. I've tried other ...
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1answer
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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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324 views

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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1answer
122 views

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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45 views

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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8answers
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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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1answer
26 views

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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66 views

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
54 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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3answers
1k views

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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38 views

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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93 views

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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41 views

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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37 views

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
73 views

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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70 views

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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256 views

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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