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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Questionable Mechanic HELP

Having a lot of issues with a mechanic, to many issues to write about. He told me today after I asked to see the diagnostic report that I paid for that they could not run a full diagnostic on my car ...
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181 views

Help identifying this: fuse or switch?

I just got an '86 Honey RV that's got a 454 in it and am trying to decipher all of the wiring. There's a lot of junk in the front of the RV, some of which needs to be replaced and some of which can ...
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125 views

Is there any system that prevent flatting of battery?

If I forget to turn off all lights, I can not go to work the next day because of battery de-charing. I was wondering if there is any mechanism to prevent this by turning off electronics in a car when ...
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73 views

What can reduce a car battery life?

In my car the battery life seems to be 2 to 3 years but when i look it up im told it should be and average of 4 years. What factors can reduce the life of a car battery? some thoughts Weather ...
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1answer
30 views

VW Polo GTI 2014 random power cutout

My Polo will randomly, every once and then (once every month), temporarily act as if its battery was dead. It will then randomly come back as if nothing was wrong. I don't know what triggers it but is ...
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1answer
70 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
53 views

Charging a motorcycle battery with no exposed leads

I am trying to charge this battery with this charger: However The connectors are as such: The battery is 6V, 4Ah The charger operates at 6v, 1A Without an obvious way to connect these im a bit ...
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295 views

Best Car Battery for Longevity in Extreme Heat

I just had to replace my car battery after only 1 year of service. The last battery I had before that died in about 18 months. My car batteries die in the extreme heat during the summer when the ...
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1answer
27 views

Do i need a separate powerswitch for amplifier besides remote

I have a Ford Fiesta 2010 model. Its fitted with JBL GT5-A402 amplifier with 240 watt. It is connected to a Pioneer head unit. Rem wire is working fine. Amplifier is powered directly by the battery ...
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6k views

Why is my car equipped with a battery shutdown timer?

I currently live in Japan where I bought a 1997 Subaru Impreza WRX STi. Since I don't completely speak Japanese, I wasn't able to ask anybody correctly about one thing that the previous owner had ...
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1answer
178 views

Engine dies and positive wire starts bubbling after splashed with water

I had made a turn and as I turned a big puddle of water covered my front window / hood. As I completed my turn my truck died so I figured it was something basic. I popped the hood and tried starting ...
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3answers
4k views

My motorcycle wont start unless jumped.

I have a 2009 Hyosung 250 and I've had this problem for as long as I've had the bike and through numerous batteries. I just purchased a new battery a few days ago and it checks out good puts out 12V. ...
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1answer
92 views

Erratic Battery Voltage Reading on Dash - Tests Fine with Multimeter

I have a 1996 Chevy G10/Express 1500 van with a 5.0. When the headlights and other accessories are on, the battery voltage gauge on the dash drops to level that I would consider low (around -2.5 bars)....
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1k views

When to replace a battery jump-starter?

I have a battery jump-starter for many years (more than 5). I wonder if I should replace it now. How can I tell if it needs to be replaced?
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56 views

New battery gone completely dead

The Duralast battery in my 1995 F-350 appears to be completely dead. It is only 3 months old. I got it in February at AutoZone. It was fine until I inadvertently left the ignition switch on for ...
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1answer
56 views

What battery specifications should I look at when choosing a portable jump starter?

I have a portable jump starter; but it won't start my car if it's dead. From my preliminary research, I need to focus on picking a jump starter that provides enough Cranking Amps/Cold Cranking Amps (...
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1answer
107 views

Battery stops getting charged after 15-20 minutes of driving

I've got a 1998 Mitsubishi L200 pickup that has a charging problem. When I start the engine the indicator shows that battery is charging but after driving for 15 or 20 minutes it stops charging. I've ...
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5k views

If you overfill the battery, will this cause more gasses to escape?

Is it possible to overfill the battery with too much water?
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57 views

1992 Nissan 2.0 (SR20DE), ABS and battery light came on while cruising

Today I was driving on the highway and all of the sudden, the enige surged a little and the ABS and battery light came on. I've stopped the engine and started it again, the engine starts easily. I ...
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2answers
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Mixing marine & starting batteries with a switch

I have a truck equipped with some emergency equipment that I'd like to be able to use without running the engine the entire time, and without draining the main starting batteries. There is a 1/2/both/...
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1answer
69 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
124 views

How much accurate car cigarette lighter port is?

My car's generator is putting out 13.5 voltages when on full load (blower, ac, lights etc) but when i check the voltage on car's cigarette lighter port it it drops to even 11.6 when blower is on, when ...
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2answers
93 views

Car inconsistently won't start

My 2013 Honda CR-V will occasionally not start. It cranks fine but will not actually start. If I turn the car on but don't try to start it, electronics and everything else seem to be fine. I noticed ...
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1answer
274 views

Trickle charging with positive and negative on the same battery terminal

I have a trickle charger cable on my motorcycle battery and in the dark I mistakenly put both charger cable leads on the positive battery terminal, what happened to the battery by trickle charging ...
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1answer
248 views

New battery, but car won't start and odometer blinking rapidly

The battery warning light on my 2000 Mazda Protege kept coming on after 35 miles per hour, so I took it to AutoZone to get it checked. The battery was bad (it did need a jumpstart in January) but the ...
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Filled a battery with distilled water and trickle charged for days

The starting voltage was 10.5 volts and when I left it charge at a 2Amp current it took a day to get to 11 volts and another day to get to 11.5 volts and would not go any higher. I took it off charge ...
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5k views

Engine will not start after battery and terminal replacement

My standard 2011 Kia Soul’s positive battery terminal became very corroded and after having to jump it in order to get it to start, I took it to Walmart for a new battery. After they replaced the ...
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1answer
58 views

corsa 1.2 2007 drain battery

I have corsa 1.2 2007 keep losing charge. in the morning start normal. but in the evening not start I try with new battery same things when I plog off the battery wire on the evening car start normal ...
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21 views

Alarm System in 2008 HHR Keeps Alarming After Battery Test

I have an 2008 HHR and after a battery test by machine, my alarm system continued to go off all through the night. Does the battery cables or tester have anything to do with the alarm system? Seven ...
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39 views

headlights not working but they do if jumping battery

im guessing the solution is to replace the battery but i dont want to spend $100+ on a battery if that is not the fix. here is the scenario: headlights stopped working so i bought some fuses and ...
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1answer
115 views

Auto rickshaw battery

Can anybody help me in battery selection for auto rickshaw ? My engine is CNG engine suitable for 3 wheeler auto rickshaw. 1) My current requirements are= 23.6A (Vehicle+Engine required electrical ...
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2answers
281 views

Should a 2004 Mazda 3 run after jumping when battery has a dead cell?

I have a 2004 Mazda 3. It got a new battery just over 2 years ago. About 8 months ago, the alternator died and I had that replaced and everything seemed fine in the months since then, including as ...
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2answers
42 views

Confirm battery condition after conflicting test results

I drained my battery using it to power a small electronic device for about an hour with the engine off. I called for roadside assistance. After they got it to start and run for a few minutes, they ...
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1answer
52 views

1996 Subaru Not Starting

My friend owns a 1996 Subaru Legacy Outback. I recently had to drive the car, but when I tried to start it it wouldn't start. When I removed the key a loud clicking sound came from somewhere behind ...
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1answer
596 views

How long can a battery last with a maintainer?

How long can a 600 CCA battery last with a maintainer on it and gentle, weekly use of car. This is a 2011 Grand Sport with battery in trunk. The maintainer would be running 24/7.
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51 views

2004 Prius needs 5k worth of work. Should I invest in this old car or a new one? [closed]

We have a 2004 Toyota Prius that needs a new hybrid battery, and other work. Total cost is about 5k. What would you do? Repair the car and maybe it will continue for another 10 years, or invest ...
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868 views

Car won't start without disconnecting both battery posts

I have a 2001 Mercedes E430. I'm having problems getting it to start. Usually, I have to get a boost to get it to start. But I just discovered that disconnecting the battery completely gets it to ...
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3k views

Dashboard lights dim when I step on accelerator

[Car: 2001 Kia Sephia, ~107,000 Miles] I just got a new alternator put in my car, plus had a lot of other work done. Now I notice my lights are dimming on the dashboard when I step on accelerator and ...
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1answer
82 views

Help! Removed the wrong terminal and sparks flew…am I screwed?

I was trying to clean the battery terminals but I didn’t realize I had to loosen the positive terminal clamps first. I stared loosening the positive terminals and my wrench hit this other bolt (...
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1answer
2k views

Delco battery code

I have two new Delco batteries and the code reading methods I have seen don't seem to work. there is an etched number in the top 7MKD27, then there is a sticker P0585 with group number on the ...
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2011 Chevy Impala was inactive with dead battery for 3 months! I have tons of problems now! Help!

In late December 2017, I discovered my 2011 Impala wouldn’t start. My boyfriend and I jumped it with our other vehicle and it worked. We disconnected the cables and left it running for a while. We ...
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1answer
153 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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2answers
100 views

Car starts with Trickle charger and Battary, can start on a boost but not on battary alone

The battary on a chevrolet cruze is displaying an output of 15 volts and recharges from the alternator. However the car needs assistance from a boost or trickle charger to turn over properly. The car ...
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2answers
279 views

2000 Chevrolet S10 dies, won't stay on after jump-start

My Chevrolet S10's battery light kept coming on while I was driving, and today it was driving just fine all day but when night came it died on me. I saw my dash lights began to dim so when I came to ...
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5answers
1k views

Simplest installation of car-powered car-pc

Am posting here as this question seems to be considered off-topic on both the electronics and the Raspberry sister sites. Would like to install a carputer (Raspberry Pi), and am wondering about the ...
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1answer
77 views

Will changing the stator help sustain electrical accessories?

I have music on my motorcycle and LED lights. I find myself charging my battery a lot. So do I need to change the stator or alternator to help hold the power for my accessories or the regulator?
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03 BMW 540I M package Charging System issue

I purchased this vehicle in October 17, 90 thousand original miles 3 different owners according to carfax. Car was in perfect condition, I personally kept in garage and rarely got out for the first ...
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2answers
1k views

Electrical problem 2001 VW Golf: intermittent battery failure?

(This is my first question here so let me know if it is off-topic or not enough info provided, or otherwise inappropriate for the forum and I will delete it) I have a 2001 VW Golf which has started ...
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2answers
233 views

How often do i need to drive my car when it's cold?

My Volvo S40 -00 with a 12v battery has been standing still in a cold garage since Thursday, it has been around -6 at night and -4 and -7 degrees celsius each day, how often do i need to drive to keep ...
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59 views

second battery for entertainment system

I have installed an Android entertainment system in my car. The problem is that it gets activation signal through ACC line and it turns off while cranking the engine. I will use the ignition line to ...