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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Question about cigarette lighter voltages/currents

My motorcycle of course has a 12V battery. I have been informed that the OEM Honda cigarette lighter is wired with an "inline 1A fuse". I'm considering ordering a phone charging USB adapter ...
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1 answer
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2012 Sonata doesn't turn on but make hosh sound

I have 2012 Hyundai Sonata which does not turn on,(Sometime you get lucky and turns on.) The car makes hush sound as below link but doesn't turn on. Video Link As you can see in video i tried couple ...
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2 votes
2 answers
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Car starts only when I jump it

I have a 2006 Dodge Caravan SXT. Bought it from a friend who said that the battery was replaced like two years ago. Everything was fine until recently I started having this problem where the car would ...
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1 answer
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2000 Suzuki Katana 600 starting

So I just purchased a 2000 Suzuki Katana 600. The bike cranks but doesn't want to start. I had the battery tested and it was good. I can get it started with some starter fluid. Then if I go ride it or ...
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4 votes
4 answers
4k views

Nearly drained battery for 2 weeks - how much damage was done?

I recently made a mistake of starting my car, and only driving it for a short trip multiple times in below-freezing weather without letting the car fully warm up. This was after the car had sat for ...
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0 votes
1 answer
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Is it normal to over flow little battery liquid

I got an overflow issue with my car's old battery and now replaced it with a new one. currently, when I go for a long drive few vapors are released through the overflow exit side of the battery. Is it ...
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I have a 2019 CX3 that pulls 1.5 amps with all off

The problem started when a new motor was put in. At first the battery would be dead every month or two. Now the current is 1.5amps all the time, and have to keep a charger on it, or jump start it, if ...
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1 vote
1 answer
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I have a 2009 Honda Accord 2.4 and I replaced the battery and alternator and the car will not keep running. Its not holding a charge

Hello my 2009 Honda Accord won't seem to stay running after I replaced the battery and the alternator. We took the battery and alternator to get it tested and is still good, so I was wondering what ...
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1 vote
1 answer
38 views

Why is my Volvo XC60 Battery discharging to 6V when parked for 2 days (dead flat)

I have a 2014 Volvo XC60. A mechanic recently replaced the (main) battery with a (non-Volvo) Century battery (AGM-type 12v lead acid, 70Ah). I parked the car in the garage for 2 days and the battery ...
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13 votes
6 answers
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What does it mean when I turn the car key, nothing happens for a bit, and then the car revs to life?

Usually, when starting my car, as soon as I turn the key all the way around, the car instantly starts revving and then springs to life. For some reason, today, when starting my car. I turned the key ...
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How can I charge a depleted motorcycle battery?

I left my motorcycle too long without using it and now it won't start. The last time it happened I brought the bike to a shop, and they were like there is nothing wrong with your bike, it's just out ...
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12v coolant pump powered from leisure battery and starter battery. HOW?

OK so I am trying to figure out final component of my camper electrical system and I have found I am stepping beyond the scope of "connect A to B" etc. I have a diesel water heater with an ...
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2 votes
1 answer
33 views

Car dies when turning key

I have a 2017 Nissan Rogue. I get in the car and the dashboard indicates my door is open I shut the door, everything is fine. But when I put the key into the Ignition and go to start it the car ...
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1 vote
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Car horn's relay always in switched on position;could it be the reason for total battery drainage if car is not started for 2 days

(MG Hector plus petrol automatic-1 year old). My car's battery was suddenly getting drained in just 2 days of not using the car. This happened twice. I took the car to the service centre and they said ...
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no sound when turning key, but battery should be fine

I know it isn't the battery. I just had the charge checked, and it starts... Sometimes. But the majority of the time, I turn the key and there's no noise under the hood. The door indicator beeps when ...
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1 answer
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My Honda WR-V ran out of battery for a long time. Now nothing works

My car has completely run out of battery power. After carrying out a transfer of energy to be able to start. It's not working properly, the multimedia doesn't turn on, the alarm doesn't work either, ...
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0 votes
1 answer
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Alternator / Regulator / Battery issue with Yamaha XJ 600

I don't use my XJ 600 so often and a few months ago, it wouldn't start due to an empty battery. The battery was old. I got a new one, and a SC10 "smart" charger to take good care of it. Two ...
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Red dust around the negative terminal of the battery

Today I noticed some red dust around the negative terminal of the battery. What could be the reason for this phenomenon, and is it a problem? Should I clean it up? I originally thought about corrosion,...
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2 votes
2 answers
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Determining root cause for Renault Clio not starting

My Renault Clio 1.2L 2002 16v occasionally has issues with starting if I don't drive it for a while (usually prolonged periods). Typically its usually the battery and either jump starting or using a ...
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1 vote
4 answers
127 views

Why connect negative during jumper start?

I've been reading about the science behind jump starting a car and everyone keeps talking about the correct order and why the negative shouldn't connect to the dead terminal, etc... but no one ...
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17 votes
3 answers
5k views

Car battery at 10v, then shows 14,5v while car running after boost, then when car turns off, drops to 10v again within a minute

Yesterday car suddenly didn't start. We boosted it and drove for an hour. When parked, it would restart immediately. But after waiting 1 minute, it wouldn't start again. Today I measured the battery: ...
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1 vote
1 answer
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Battery died at a drive-in and the guy that jumped off the car with a jump box hooked a jump box up backward

After you hit the jump box up backwards I attempted to start the car twice before I realized that he hooked it up backwards it is a 2011 Toyota Camry now the car starts but it has no acceleration at ...
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0 votes
2 answers
72 views

Charging my car battery with charger - voltage increasing but ampmeter reads 0 amps

My car has been out of commission and out in the extreme cold for a few weeks. I have a brand new battery that read 3.3 volts when I started charging an hour ago. It now reads 9.2 volts but the ...
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0 votes
0 answers
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Acura TLX momentarily flashing check brakes, then dying. What is going on?

I have a 2016 Acura TLX with ~50k miles on it. Recently, it's been behaving quite strangely, typically associated with a brief, but never permanent, flashing of the 'check brakes' light. If [whatever ...
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3 votes
1 answer
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Car starts after jumped, not again

My 2016 Ford Focus wouldn't start, so we jumped it and had the battery replaced. Pep Boys said it was corroded and definitely needed replaced. It ran for about a week, and wouldn't start again. My ...
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1 answer
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Jumper starter doesn't show connection to battery unless I engage the manual override - Cold Weather

I'm trying to jump start my car with a portable booster pack, the car has been out for about 2 weeks in temperatures that regularly reach -15 C and the battery is completely dead. It's a brand new ...
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1 vote
1 answer
57 views

My first hybrid, strange electrical problem, 2007 Honda Civic Hybrid

Just bought my first hybrid, a 2007 Honda Civic Hybrid. Regrets already. Need help diagnosing this behavior. I'm about 80% sure the "starting" battery is dead, but hybrid... Day 1 Turn ...
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1 vote
1 answer
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Correct battery for Insignia Sports Tourer

I have 2013 Insignia Elite CDTI AUTO diesel 1956cc. United Kingdom vehicle. How to get the correct car battery and what specifications to look for while choosing the right battery? I tried reading in ...
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0 votes
0 answers
48 views

Lithium vs lead-acid motorcycle batteries: which lasts longer in the winter? Lower capacity vs lower discharge rate?

My question I would like to understand a bit better the pros and cons of lithium vs lead-acid 12v batteries for a motorcycle, especially during the winter. Yes, I know, google is your friend, and I ...
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10 votes
1 answer
1k views

Do battery corrosion pads really work?

I see various sources suggesting that chemically-treated felt pads be placed under battery terminals, to reduce or eliminate corrosion - like these: Usually either red/black or red/green. Do these ...
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2 votes
0 answers
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Have faulty mobility equip that drains battery overnight. Can't get it fixed for next two weeks

I live in a condo with no electrical outlet access in garage where car is parked, so trickle charge or plug-in starter/charger not an option. The faulty equipment that can't be fixed till after ...
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2 votes
1 answer
70 views

Did I damage my car battery?

I have a Smartech battery charger charging my car battery for the last two years since I haven't been driving the car. I just realized I have been charging it wrong. The manual said for a negative ...
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1 answer
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What could cause premature failure of a brand new alternator on my 2007 Ford Escape?

The (I believe original) alternator on my 2007 Ford Escape failed last month and was replaced with an alternator from FVP. The battery was tested and seemingly passed muster. Now, three weeks later, ...
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1 vote
1 answer
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Car 'Jump Starter Pack' says Up to 2lt engine. Is this a strict limit?

I really appreciate all help I am given here and hope you can help me with this next problem. Basically I have a 2.2 CDTI Honda Civic from 2008. I need a jump starter pack (because nobody I knows has ...
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0 votes
2 answers
77 views

2008 Honda Civic turned over slowly but didn't start on first attempts, now dead even when attempting to jump

My 2008 Honda Civic has been turning over slowly, but failing to start on the first couple attempts to start it lately. Sometimes it'll start first try, but typically it needs multiple attempts. My ...
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0 votes
0 answers
42 views

2006 Smart Fortwo: Key fob stopped working after disconnecting the battery

I own a 2006 Smart Fortwo Pure (Diesel) and had to disconnect the battery recently because the parking lights wouldn't turn off (issue resolved now; most probably moisture in control lever). When I ...
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0 votes
2 answers
56 views

Car doesn't start, how can I make sure the problem is because of the battery?

I have a 2008 highlander. Yesterday I started the car and it was OK with no sign of weak battery. But today it didn't start. I want to know if there is any battery alarm on the dash to check if the ...
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1 answer
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Bigger battery for my Toyota corolla 2015 le

So I got some subs in my car they say they have the potential to pull at max 10 volts each so it'll be maybe 20. My battery is a 12volt and I'm really wanting to get a battery with more volts to make ...
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0 votes
2 answers
131 views

Two day old car battery voltage is reading 3.6v

Purchased a brand new vehicle on Saturday, drove it around 60 miles total (so, plenty of time to charge a low battery) and this morning it was dead. I checked with two multimeters because I didn't ...
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3 votes
2 answers
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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0 votes
2 answers
74 views

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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1 vote
0 answers
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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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1 vote
4 answers
683 views

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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1 vote
3 answers
126 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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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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0 votes
0 answers
40 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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1 answer
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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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0 votes
0 answers
33 views

My Alternator Case to Battery Negative is reading 12 vdc and same for the Case to Positive side

just had tranny replaced last week. The alternator that was on the car had been replaced in May of this year. I drove car for at least 1000 miles since the tranny was replaced. But, last night the ...
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1 vote
1 answer
88 views

How modern electronic parking brake works? Do they consume power when parked and car is off?

This might be a stupid question, but lately I've been asking myself this question and couldn't find an answer on google. How modern electronic parking brakes work? Do they consume power when parked ...
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1 vote
2 answers
89 views

Car Battery left sitting over winter, wont hold a charge

2009 toyota matrix has not been driven regularly since 2019 when it got a new battery. Since then we have removed the battery and stored it indoors (not on a trickle charger) for winter then in the ...
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