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
91 views

Is there a way to reliably test voltage of a 12V battery when it's not disconnected (i.e., partly loaded)?

I'm having an issue where a fully charged battery doesn't necessarily report the proper voltage when checked from the socket within the car, because in order to have the socket activated, the car has ...
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2answers
89 views

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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3answers
20k views

Does disconnecting the battery have negative side effects?

A recent answer at a sister site suggested disconnecting the battery routinely. I often disconnect my battery before embarking on a hike. Especially if I am in a remote location. This is a nice way ...
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5answers
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What could be causing battery drain on a 2009 Honda Pilot?

My sister has a 2009 Honda Pilot that's got some issues with the electrical system. The battery frequently drains overnight (every other day or so). When driving a lot (several hours or more) the ...
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1answer
25k views

Corrosion on positive terminal and cable

Can a cracked cable connector cause corrosion? or is all corrosion a result of battery leakage?
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0answers
671 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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1answer
28 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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2answers
151k views

Car Battery won't charge after sitting for a Year

I have a main starter battery and a leisure batter in my van. They have been left unused for around a year with my van off the road. I am now trying to get it up and running however I am unable to ...
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1answer
171 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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1answer
56 views

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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6answers
92k views

Can I jumpstart a non-hybrid car from a hybrid or full electric car?

This morning I had starter battery troubles with my 2001 VW Eurovan. As it happened, my father-in-law arrived just at the right time in his fancy new Toyota Camry hybrid. So we opened the hoods, dug ...
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41 views

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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1answer
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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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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2answers
3k views

2003 honda accord battery light

Battery light keeps coming on and off and power steering feels like it is going out. New battery a year ago, new alternator a year ago. Replaced the accessory belt a week ago as well as the accessory ...
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2answers
870 views

98 Grand Cherokee drains battery

The battery would go dead after sitting for a day. I checked battery and found a bad cell with a hydrometer. Replaced the battery and the problem remained. I hooked my meter between the positive post ...
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3answers
95 views

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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1answer
142 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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2answers
430 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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1answer
501 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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1answer
63 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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2answers
49 views

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
46 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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1answer
53 views

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
248 views

What is this sounds? Car won't start

I've been having trouble with this car and keeping the battery charged. It's winter and the car doesn't get driven, lately I've decided to run it a bit every night. Tonight my wife tried to start it ...
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1answer
45 views

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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2answers
21k views

How to troubleshoot Intermittent Battery Light Issue in 2003 Honda Civic?

My 2003 Honda Civic EX is experiencing an issue which causes the battery (alternator/charging system) light to occasionally come on for less than a second. The car starts, runs, and drives fine ...
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1answer
41 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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3answers
38k views

Battery acid clean up

I was carrying a battery in the floorboard of the backseat area of the car. I was going to return it to be disposed in a week. In the meantime, it tipped over and a good amount of the battery acid ...
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0answers
20 views

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
26 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
105 views

Car Only Starts With A Jump

Car will only start with a jump. Took car to Autozone had the battery,alternator and starter checked all came out good but still will not start without a jump. Any ideas?
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3k views

JB Weld & Acid Battery Repair

Trying to repair a crack on plastic casing on a everstart 12 volt battery after trying to connect something to the right terminal that didn't fit properly. Did some research ans decided to give JB ...
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4answers
18k views

How do I know when a VARTA car battery is produced?

I have a hard time finding when my car battery was produced - can't find any defintive information. The battery is VARTA H3 Silver Dynamic 100Ah with the following embossed letters in the upper right ...
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2answers
229 views

Battery drain and possible brake fluid leak

This Sunday night I left my interior light on and this morning the car didn't even open with the remote key. My friends and I tried to start it by pushing it (I have done this before a few times and ...
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0answers
1k views

Hyundai Accent mysteriously stopped starting

Just bought an 08 accent with 132 kkm a few weeks ago. Ran great until I drove it home one night and the next morning it wouldn't start. The starter spun but didn't engage flywheel so naturally I ...
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0answers
42 views

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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0answers
428 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
56 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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4answers
31k views

Acceptable battery voltage drop overnight

This is a follow up to this question that I asked previously. Since asking that question, I have kept my same commute, but have been driving consistently 30+ miles on the weekend. In addition, I have ...
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1answer
140 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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1answer
13k views

Car keys off but fuse still lights up the tester when set to ground

So normally when you want to test your fuses, you set the car to on and put the tester clip to ground then put the tester's lead on the fuse. if it lights up then the fuse is working. Well, even when ...
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1answer
162 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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7answers
30k views

The battery in my portable jump starter seems to be dead - is it ruined?

My portable jump starter is this one from Cen-tech: https://www.harborfreight.com/3-in-1-portable-power-pack-with-jump-starter-62306.html I've had it for about 12 months and used it a few times ...
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1answer
46 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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8answers
3k views

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
3k views

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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2answers
85 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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