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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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Why should I connect the red/positive terminal first when jump starting?

So, it's fairly popular consensus online that it's red/positive clips to the positive/red posts, then the black/negative clip to the frame One site mentions sparks, but you'll still get a spark when ...
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ABS and Brake light fault after battery disconnected

I bought a new battery that ran flat after two weeks. Took it back to the garage and they disconnected negative from my battery whilst the engine was running to check my alternator but now I have ...
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23 views

Smoke at post when jumping also is sparking at post when hooking up a short

Trying to jump truck. Battery post started smoking. Is that because cables were rusty and if you see spark on post when hooking up is that for sure a short?
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Minimum driving miles to keep battery charged (Honda Civic 2015)

I have a 2015 Honda Civic and I got a new battery for it about six months ago. Recently the car hasn't been starting and required jumps every morning to run. I took it to the dealership and they let ...
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50 views

When to charge a car battery

When is a good time to charge a car battery after getting a new car? This is to avoid a dead car battery.
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1answer
56 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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39 views

Car starts when jumped but will not start again after turning off

2006 VW GTI 220k mi. 1yo battery. Starts and runs fine after jumping, but once I turn the car off it will not start again. No lights come on the dashboard, wont even click on attempt to start. Is ...
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36 views

Deionized water for batteries and radiators

Confused! Auto parts stores sell deionized water for auto use only; claiming they are prepared solely for this use. Not for human consumption. What do they do differently after making DI water? Are ...
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Honda Fit GP5 Hybrid battery not charging

Last two days in my Honda Fit GP5 (2014, hybrid, 1490cc) I noticed engine isn't stop when car is in parking mode and hybrid battery meter doesn't get over 3/6 even though engine was on for half an ...
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45 views

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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Battery only charges with parallel load - why? recoverable, or replace?

As a followup to Little/no charging but alternator and battery test good, the battery is only charging when the charger has a significant load in parallel with it (e.g. turning the key to the on ...
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19 views

Battery replacement

I have a 2014 Mercedes Benz 4 matic. I swapped the battery in the front and my car started fine and I also swapped the auxiliary battery in the back and now the car won't do anything. It won't start. ...
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141 views

charge SLA battery while using it

I will add a small auxilary battery (lead acid 12V 2.4Ah) on my car for me head unit to be able to crank the engine and not turning off the system. Now, if I crank the engine while the unit is on, it ...
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1answer
28 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
62 views

2009 Suzuki LS650 Battery Problem/Question

I bought a new battery that had the same amp and voltage as my current battery that I was going to replace. I double checked via the website, and they confirmed it would fit my motorcycle. (Moto ...
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73 views

I accidentally hooked the negative side of the battery up firstand the wire running to the alternator started to smoke

I accidentally hooked up negotiate cable to battery first causing the wire running to the alternator to smoke. I quickly unhooked it and hooked it up positive side first. But now my car won’t stay ...
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Battery voltage and ABS system

I have 2000 Honda HRV GH 3. I scanned my vehicle, It shows ABS System Failure, Battery Voltage Failure. Last year I changed the battery, it's a 45AH battery, A mechanic said to change to a battery ...
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1answer
24 views

03 kia spectra runs on fresh battery

Car will fire up on good battery but after bout ten minutes lights go out acts hit nrake or anything and it dies hearing a buzzing from sensor or throttle body told needs alternator belt but seems ...
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1answer
26 views

My battery is saying fully charged but will still take charge does that mean my battery is going bad

Have tested battery an it reads fully charged but when I put a battery charger on it it still takes a charge . What could be wrong
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1answer
47 views

What does this clicking noise mean when trying to (unsuccessfully) start my 2004 Lincoln Town Car?

I'm hoping someone can help me diagnose this car problem (car won't start). I made a short video here so you can hear the noise it makes when trying to start: [video removed] Short summary of the ...
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2answers
37 views

1998 Ford Expedition: Symptoms of dead battery while jumping

I'm attempting to get my 1998 Ford Expedition 5.4L V8 to start after sitting for a few months. Initially, the battery was dead, so I put it on my charger for a while. After the battery was charged I ...
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1answer
2k views

battery light comes on mazda tribute

2001 Mazda tribute v6 with a NEW alternator. Will start from beginning to be clear. Original alternator went out 3 years ago. Was replaced with after market, this worked for 3 years, was replace ...
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2k views

Honda 2002 Accord re-set after battery disconnect nightmare

I want to get my radio/car alarm re-set and I now have figured out my special code, but am I permanently locked out? The farthest step that I get is to see the serial number (U XXXX and L xxxx, ), ...
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Car battery recently replaced - could it cause static buildup?

I recently had my car battery replaced. Ever since then, the first person to get out of the car gets a static shock. This never happenned before. Could it be that the new battery is set up in such a ...
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1answer
22 views

Do I need to change car-battery or retry jumping?

I didn't drive my car for months. Jump-started it once for a minor drive, but then didn't drive it again for a few weeks. All of this happened during cold winter. Now I jumped it again, with the ...
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1answer
211 views

Battery Draw while car is off at 3.24

I have a 2007 Saab 95 wagon... For about 6 months at random about once a month my car has been dead. After calling AAA and they told me there is a draw from the battery at apx 3.24 which is should be ...
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1answer
67 views

Building E-Bike Help

I am building an e-bike using an electric skill-saw, a car alternator, and a 20Ah battery. I have a few questions because I am new to this stuff. Should I have the motor in between the wheel and the ...
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1answer
32 views

Charging a 26AH Lithium battery with an idle 140 minute reserve AGM battery?

My truck has a large Bosch 94R800B AGM battery rated 140 minute reserve. I've had a lot of luck using this power. Unrelated, but I have a 1200 watt inverter installed on top that can power a wide ...
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1answer
13 views

Battery terminal corrosion?

I was preparing my motorbike for storage. When I was pulling the battery I noticed the terminal covered with what looks like corrosion or grease. Can anyone chime in? This is brand new battery with ...
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1answer
51 views

2002 Honda CB250 wont turn over after new battery

I recently bought a Honda CB250, and did the 30 minute ride home fine. Then a couple of days later I took it out again and pulled over after about 10 minutes of riding and turned it off. After that I ...
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2answers
183 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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1answer
28 views

Battery only charged with higher than 14.7v

My battery is 12V 8AH. 2 weeks ago tomorrow of good start engine I tried to start engine but my motorcycle was scrambling to start and I found that my battery may be damaged. Maybe it is useful to ...
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Assessing battery condition on an EV

I'm considering the purchase of a used EV (electric vehicle, with no backup internal combustion engine). From what I understand, the battery condition of an EV, and therefore its maximum range ...
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5k views

parasitic drain

1997 GMC Suburban K1500, 5.7L gas TL;DR - 18 moth old battery dies in 4 days. 0.02 amp on parasitic drain test I've been dealing with this issue for a while now. Battery is about 18 months old. ...
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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
329 views

Pontiac Grand Prix won't start, horn would honk, electrical system goes crazy

Some facts: My dad has an aftermarket Remote Keyless Entry Not aware of any aftermarket theft system, does not use keyless start He's used 410 watt power inverters through the cigarette lighter but ...
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2answers
2k 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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0answers
596 views

2016 Chevy Malibu start up problems

I have a 2016 chevy Malibu with about 84,000 miles. I just bought this car from the dealership barely 2 months ago. My first issue started one morning I went out to start it and all the lights and ...
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2answers
1k views

My 2010 Hyundai Elantra won't start without a jump

My car won't start without a jump. I’d jump it with cables, it will start with no problem, but as soon as I turn it off, I won't turn over.
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1answer
847 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
33 views

Seltzer Water or Carbonated Water in my 6v. Golf Cart Batteries

I was told that I Could use Seltzer Water or Carbonated Water in my 6v. Golf Cart Batteries, is that true?
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15 views

Scooter doesn't start and makes ticking noise

My Piaggio Xevo 400 scooter does not start, and makes this ticking sound. It this perhaps a starting motor or an immobilizer problem? I have charged the battery. Video
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1answer
24 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
9 views

I have problems with low beam and cruise control on my Holden Commodore VY

Headlights were working fine. Low beam is now too dim to see with ( Both sides) High beam still works well. Cruise Control was working well, but now works on and off, sometimes for a while, next time ...
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1answer
439 views

Car audio settings battery backup

I want to solve a very annoying problem I've had with the last two Sony car audio receivers I've owned. The problem being that days are spent getting all the sound setting perfect to my liking, which ...
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3answers
45 views

Depleted Honda Fit battery — how long to recharge, how to re-enable radio?

I left the interior map lights (driver & passenger side lights) on for about 30 hours, depleting the batter in my Honda Fit. I could barely see the lights on. Fortunately, at least one towing ...
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1answer
486 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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1answer
836 views

Ford Fusion 09 starts sometimes and sometimes it won't start

Recently my car has had trouble starting, well sometimes it turns on and sometimes it doesn't and i have to either wait a few minutes or sometimes it won't even turn on anymore. I changed the starter ...
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1answer
287 views

Voltage measurements with the alternator running fluctuate

I own a 1994 Mazda Protege. On Sundays, I measure the voltage at the battery terminals, and register it. First with the car turned off, and then with the car idling. The voltage with the car turned ...