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.

Filter by
Sorted by
Tagged with
0
votes
0answers
28 views

Is it harmful for my car to be only driven once a week? [duplicate]

I spend most of the time at home and I rarely drive my car. I only drive it one day per week to keep it as lubricated as possible. Is it harmful for my car? Should I drive it more often to keep its ...
-1
votes
3answers
78 views

Car battery is flat, how can I tell the cause from multimeter results?

my car battery is flat. I did some measures with a multimeter. I will explain them below. Can anyone please tell me what can be the issue? Note: My car is a VW Polo 9N3 2007 Symptom For the last 2 ...
3
votes
3answers
433 views

Battery voltage drops from 12.3V to 11.2V in 5mins

I was in my car, while snowing, with the radio and the heating turned on but the engine off. I checked the battery's voltage, which dropped from 12.3V to 11.2V in 5mins. Is this behavior normal, or ...
1
vote
2answers
33 views

Battery Disconnect Switch: Shank Diameter

https://www.harborfreight.com/battery-disconnect-switch-97853.html The shank-end (in red-circle) is designed to be connected to an existing negative lead. Attempts install the device on an Integra ...
0
votes
3answers
4k views

What is wrong when the car dies after you take off the jumper cables on a 2010 Kia Optima?

What is wrong when the car dies after you take off the jumper cables on a 2010 Kia Optima?
0
votes
1answer
68 views

If you connect 2 car batteries in parallel and one has a low charge, how much would the low charged one draw from the other battery?

I'm just wondering this for the sake of understanding. If you have a low charged battery that is connected in parallel with another battery (that is fully charged), how many amps would the low charged ...
1
vote
0answers
35 views

Car won't start if the battery has been on for ~5 minutes

I have a 2006 Honda Accord, and my car battery is not too old (1-2 years). The car starts fine, I don't normally have issues with it. However if I turn off my engine and sit in my car with the battery ...
0
votes
1answer
89 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 ...
0
votes
1answer
69 views

Neighbor leaves his positive terminal disconnected - dangerous? [duplicate]

A guy who owns a neighboring car in the communal parking garage I park in disconnects the positive side of the battery when leaving his car for a few days at a time. Is this dangerous? If so, under ...
1
vote
2answers
25 views

ECT registering low at steady state. (low enough to set a code) No explanation

A little back story, this is a 2015 Jeep Wrangler. Since 2017 I've kept an eye on coolant levels because sometimes I can smell burning coolant when I'm in front of the vehicle (not in the vehicle). ...
0
votes
0answers
23 views

Can somebody please tell me, my new battery's date of manufacture, please? [duplicate]

C211A 077 this is the code on my recently purchased battery....can somebody tell me its date of manufacture, please? EDIT: Forgot to add, it's a Exide Excell 80ah..sorry.
1
vote
0answers
68 views

Is it safe to disable the stop/start system?

I want to permanently disable the stop/start feature on my Skoda Octavia Mk3 (based on VW). TL:DR; The implementation is faulty. Suppose I want to pass a parked car, and slow down for a car coming the ...
1
vote
1answer
548 views

2008 Toyota Corolla doesn't start when key moved forward to “start” position

When I went to leave work tonight, the car wouldn't start. I've tried two known good keys, and cleaning the battery posts and cables where they connect to the posts. There has been no indication the ...
1
vote
2answers
93 views

Parked car causing fire

Scenario: There is a parked car in a garage, that's been unused for a month and has the negative side of the battery disconnected. Car is from 2001. Could the battery explode? Or could the car cause a ...
0
votes
1answer
55 views

Not Replacing Car Starter

I have a problem with my car starter. I believe this was a problem on my car starter since I have a mechanic who went to my office and have it check. He says the battery is ok. When I start the car, ...
1
vote
1answer
77 views

AGM Battery - Residual Voltage?

Wife's 2018 Mercedes GLA250. Car is 3 Years and 4 months old. Just turned over 12k miles. The AGM battery is at 12.25Volts after sitting unused for a week. Everything I read says an AGM battery should ...
0
votes
0answers
39 views

Battery showing lower amperage

Civic coupe vti 99. I have had my battery tested in Halfords and they said all was fine however they pointed out the amps on the battery was 263 whereas it should be 300. I have been doing not 10 ...
0
votes
0answers
40 views

Bad connections or bad battery?

Car battery had gone bad at least in part to corroded terminals. I cleaned up the terminals and eventually got battery to 12.8. it had been dropping below 10 volts on startup but with driving/...
0
votes
0answers
27 views

DIY main battery swap on Volvo V70?

The car is a Volvo V70 2.0 D4 181 Momentum from 2014. I bought it used in 2016, but in 2017 it started having problems with the automatic start-stop thing, and a year later it started saying "...
4
votes
2answers
17k views

Disconnecting negative battery terminal

Why do almost every automotive procedure instructions start by saying: Disconnect the cable from the battery negative terminal. ?
2
votes
2answers
7k views

2005 Mercury Montego securilock appears stuck

I've got a 2005 Mercury Montego that wont turn over. You would think the thing is complete dead, lights don't turn on, power locks don't work, but the battery is full. What does happen though is a ...
1
vote
3answers
1k 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 ...
0
votes
0answers
60 views

Peugeot 206 2003 engine overheating STOP light

I bought my 2003 Peugeot 206 second hand from a private car dealer about 4 months ago and everything seemed ok, except for the exhaust pipe appearing to be tied with plastic zip locks. About a month ...
0
votes
0answers
15 views

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 ...
0
votes
0answers
24 views

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
1
vote
2answers
109 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 ...
0
votes
2answers
110 views

How to charge a 2nd car battery from the car?

I'm going on a camping road trip and need to power my CPAP. Instead of running one long cable from the car, which has its own issues, (dead battery/car, shorts, tripping) I want to get a 2nd car ...
2
votes
1answer
154 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 ...
0
votes
1answer
96 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 ...
-1
votes
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 ...
2
votes
2answers
108 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 ...
1
vote
3answers
21k 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 ...
3
votes
5answers
10k views

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 ...
4
votes
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?
0
votes
1answer
29 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 ...
0
votes
0answers
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 ...
10
votes
2answers
155k 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 ...
2
votes
1answer
178 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?
0
votes
1answer
57 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 ...
17
votes
6answers
95k 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 ...
0
votes
0answers
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 ...
0
votes
1answer
46 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 ...
0
votes
0answers
23 views

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 ...
6
votes
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 ...
2
votes
2answers
889 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 ...
0
votes
3answers
109 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 ...
2
votes
1answer
225 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 ...
0
votes
2answers
1k 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 ...
1
vote
1answer
1k 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 ...
0
votes
1answer
66 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....

1 2 3
4
5
24