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
165 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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53 views

How much electric power does my truck consume?

I have a 2011 Nissan Frontier Pro-4x. I want to get a general idea how much power I could draw from my alternator while driving. For that, I want to find out how much power my truck uses in the first ...
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Can an 18V-5W Solar Panel Provide an Equalizing Charge for a Battery?

I recently finished a project in which I installed an additional cigarette lighter port on my car that was always on (the existing one was only on when engine was running), and connected a small solar ...
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3answers
49 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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1answer
113 views

New battery shows white signal very soon!

Bought new SF sonic flash start battery and it's just a month old. It has 3 signals..green is ok, white is needs charging and red is contact dealers. I checked for battery indicator status and it's ...
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2013 Honda Civic battery hold down bracket plastic cap wont come off

I'm trying to replace the battery on my 2013 Honda Civic. I gotta take off the hold down bracket but there is a little cap on top of the bracket nut that's keeping the cables (needlessly) secure. ...
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1answer
29 views

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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1answer
63 views

What is a point of contact to measure the live (red) electric cable?

The car starts fine in the morning. Since the battery has signs of leakage, I remove it in the afternoon, and put a new one, with a factory sticker indicating it was made two months ago. There is no ...
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1k 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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34 views

VW EOS ESC Error message

My VW 2015 EOS works great but since my last tire rotation, the ESC Stabilization Control Error appears while drive on dry roads at a constant speed. Engine slows, cannot accelerate. Must pull off ...
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65 views

Why does my truck turn off

Hi I have a 2000 F250 truck and I am experiencing difficulties keeping it started . So my question is when i jump it, it's fine as it's in park but when I go to put it in gear it shuts off? Or when I ...
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Battery issues - Honda Accord 2009

I have a brand new battery and alternator my car runs fine. When I am idling in traffic the battery light flashes on and off and on. It eventually goes out when I pick up speed. I had Honda do ...
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504 views

Opel astra H 1.6 16v 2006 battery and check engine light

I have an Astra H 2006 1.6 16V, and battery light and "check engine light" came on so I took it to the mechanic (in Sweden). They said it was an alternator problem (which I also thought to be the ...
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1answer
50 views

powered window and back windscreen wiper anomaly

At first i thought it was random, then i realised that there is clearly a pattern: I start the car then i check and both the wiper and the window works as expected. 20-30-40 minutes down the road i ...
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1answer
48 views

How to test a battery the alternative way?

Aside from buying a battery tester, is there any other way to check it? I presume under full load with the engine, lights, etc.
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battery fully discharged, got a jump-start, but what do I do now?

My battery was fully discharged (forgot to turn off headlights for a few hours). The car wouldn't even unlock from the remote. What should I do after getting a jumpstart?
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2000 Toyota Corolla will not start until hitting battery terminals

I have a 2000 Toyota Corolla which started to display a symptom during cold weather (-20 - -30 C) where you would insert the key, turn in partway, activate the internal electronics, and then turn it ...
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Battery immediately drains upon Negative cable connection

Experienced problems starting engine. Removed battery, checked fluid level, hooked it up to trickle charge, and it readily accepted the charge. Put it back in and reconnected both cables, and engine ...
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2answers
21k views

Car battery - Disconnected just positive while doing work

I've installed an extra 12V source in my car and everything is working. While installing it I removed the positive terminal from the battery and left the negative connected. (Resting the positive on ...
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1answer
35 views

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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"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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1answer
21 views

How to check GN 125H battery

GN-125H haven't battery indicator and not a kick starter. How to know battery status. How to know battery was in deadline.
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3answers
2k views

Hybrid battery not charging fully

I have Toyota Estima 2.4 petrol/electric hybrid 2010 (UK 60 reg) that I bought about 4 months ago. So far I had no problems with anything until a couple of days ago the HV battery stopped charging ...
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1answer
31 views

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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1answer
6k views

Battery status indicator confusion?

I got 45 ah battery in my car full charged 12.6v and has GREEN colour on the too indicator. It was left unused recently for 2 days, and next day, I checked the battery which gives 12.4v, however, the ...
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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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1answer
125 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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1answer
242 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
74 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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2answers
56 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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3answers
1k views

car not starting after few km

In the morning my car starts in a single quick shot. After traveling for few KMs if I switch off car and try to start it, it does not come up. I can hear a small tick sound every time. Some times I ...
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1answer
62 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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2answers
5k 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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1answer
4k 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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2012 ford focus battery drain

I Have 2012 ford focus 1.6 ti vct i recently encountered a battery drain and vehicle is making unusual noise in the dashboard on the passenger site. and i did send the vehicle to a dealer for scanning ...
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7answers
34k 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
269 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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What happens if I disconnect the battery while the car is running?

There are some comments on the question Are there any modern diesel engines that require electricity to continue running? suggesting that disconnecting the battery while the car is running can damage ...
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24 views

How to fix fog lights not working?

Hyundai Tucson 2013 GLS 4DR My fog lights are not working, and I don't remember them ever working, basically I never required them. I attempted a number of things, but nothing seems to work :( the ...
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1answer
93 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
4k views

Vauxhall Corsa won't start, lights/radio working fine

I have a 1.2L Petrol 2008 Corsa that won't start. For the last couple of months the battery light would start flashing once every couple of weeks when starting the engine. I don't do long trips often,...
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1answer
43 views

Help needed with electrical setup for overlanding

I am converting my 2011 Nissan Frontier Pro-4x to an overland-ready setup. For this, I want to set up a separate electrical system to power certain items. I need some help calculating the requirements ...
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1answer
2k 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

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
32 views

Can I Jumpstart with pos terminal broken

How can I jumpstart my car so I can get home to fix it. My only option is to jumpstart it . I’ve got jumper cables and AAA coming over
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1answer
40 views

Discharged battery on bike, should it be replaced?

So my bike was sitting idle for over a year in a different state since I moved back to my hometown due to covid. Unfortunately, my friend doesn't know how to operate a bike so there was no way for ...
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2answers
4k views

Is a battery healthy if drops under 10 volts with load?

To my knowledge of a battery drops under 10 volts on start then it is unhealthy and need recharging/replacing. However I have just read another answer where it states a battery with a dead cell can ...
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37 views

Safety around permanent trickle/float charger connection for car battery

I rarely use my second car, as a result, the battery often drains too much by the time I need it. I have a slow charge battery pack which works if I want to wait a while to get to the minimum level to ...
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1answer
40 views

Where can I find information about car PIDs?

i'm doing a research and i can't find voltage information from the car sensors, where do you find such information? finding the voltage range would help a lot.
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1k 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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