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 ...

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2
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2answers
69 views

Jeep stalls a lot has trouble idling after battery pulled for a long time?

I've had this a problem a lot with this vehicle. I have a 99 Jeep Wrangler TJ. I believe the car's computer has a battery that is a dead (like a watch battery). For some reason when it stalls or when ...
3
votes
2answers
1k views

What happens if a dry charged battery is used without electrolyte?

I bought a battery today for my scooter. The mechanic fitted the battery into the scooter and it seems to be running fine. But when I noticed the battery's box later on, it said "Dry Charged" and on ...
2
votes
2answers
398 views

when trying to start my pajero it just clicks and wont fire up

pajero wouldnt start and just clicks had aa out and they said it was the alternator but tried car over weekend and it started first time. tried this morning and just click had to have a jump start to ...
2
votes
0answers
36 views

Fresh battery, no lights on 1979 Honda CB125 [closed]

I have a 1979 Honda CB125 that was running consistently about 2 years ago. It then sat for two years and the battery was corroded so I replaced it. I've made sure the battery is charged (I have a ...
5
votes
5answers
194 views

When jump-starting a car, won't there be a huge back current into the dead battery?

So imagine I have car D with the dead battery and car G with the good battery. Initially, both cars are turned off. I hook up car G to car D in the proper order. Before I start either car, won't ...
5
votes
1answer
92 views

Motorcycle Starting Issue - no longer starting after attempting to jump with a car battery

I tried jump start my bike with my car battery because the motorcycle battery was really low and would not start. I mistakenly touched both ends of the jump leads together and cause a big spark, ...
2
votes
0answers
47 views

2001 Jeep Grand Cherokee - What is Difficulty in Replacing the Negative Battery Cable in this Vehicle? [closed]

We have replaced the alternator and battery but still have problem with starting. It takes a jump and starts every time but after you park and come back, it won't start again. I has been to the shop ...
1
vote
3answers
143 views

Battery dies frequently

I've had my 97 civic for a year now and the battery died about 3 months after I bought the car. Each time it died, I'd kick start it, drive for a few days, then it would die again. So I went to the ...
0
votes
1answer
86 views

Calculate car battery life using OBD parameters

I want to calculate the battery life of a car based upon OBD2 parameters like engine load, distance traveled, Control Module voltage etc. Can anyone please guide me as to how to do this? If ...
2
votes
1answer
64 views

Different Battery Voltage

What are the different battery voltages trucks work with? I am aware of 12v and 24v batteries, are any any systems that work with voltages above 24v? Can i safely get a 12 or a 24v system on any ...
7
votes
2answers
320 views

My car has problems starting, but the dealership checked the battery and said it was fine

I have a 2006 Toyota Rav4 - The other day, the car wouldn't start. We jumped the battery and it started right up. No lights were left on and nothing is plugged in that would be causing this. I took it ...
0
votes
1answer
84 views

2002 Honda CRV Suddenly Throwing Multiple Codes and then a Dead Battery

Last night the CEL came on, and I got the codes read on the way home. P0122: Throttle Position sensor "A" circuit low voltage P0139: Secondary HO2S12 (heated oxygen sensor - bank 1 sensor 2) circuit ...
16
votes
5answers
11k views

Adding a additional battery to car

I have purchased a brand new Toyota Innova. I need to install a a mac mini, 2 laptops and make this car a mobile office. I need to know if I can install another car battery in parallel, and will ...
2
votes
1answer
57 views

Constant drain on battery solution

I have a 2012 Ford Fusion SE. My problem is that my dc power outlets (cigarette lighter) are on continuously. I was charging one of my cell phone battery packs and as I unplugged it I noticed that ...
7
votes
1answer
399 views

Why the different the colors of terminal corrosion on the battery?

I have a 2001 Ford Windstar. When I went to clean the battery terminals: the one with the RED cover over it was a bright blue color; the other had normal white corrosion. I do not know why the this ...
1
vote
1answer
234 views

Honda Civic hybrid won't start

My Honda Civic hybrid won't start. No interior lights, no power. Can I jump start the battery under the hood? Not sure since it is a hybrid and has two? batteries. I did not drive it for 3days. ...
3
votes
3answers
293 views

Should fuel pump noise be changing according to electrical load and RPM?

One thing that bugs me about my car is that the fuel pump noise is fairly inconsistent. Turning on the lights, aircon, defroster, etc. lowers the fuel pump speed and gives a lower pitched noise. It ...
3
votes
1answer
291 views

1997 Toyota Camry - Battery is just fine one day, but drained the next

Went to start my car (1997 Toyota Camry) which was running just fine the day before. It didn't start, as the battery was drained. It took forever to charge back up. What would cause the battery to do ...
4
votes
1answer
494 views

My battery light came on, can I still drive?

I drive a 2002 Honda Civic and today on my way to work the battery light came on. I drove my car to auto zone and they told me my battery is no good anymore. However, I was planning on driving home ...
2
votes
1answer
227 views

Where is positive and negative terminals under hood of 2006 Volvo S60?

I need to jump start a 2008 Ford Focus and I am using my wife's 2006 S60 Volvo. This Volvo has the battery in the trunk and the owner's manual says not to use that for jump starts. Instead, it ...
4
votes
2answers
147 views

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. ...
8
votes
2answers
3k views

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 ...
2
votes
1answer
35 views

Car screams after 14-day non-use upon start-up

On two occasions since I purchased my 2004 Infinity G35 a year ago, the car was garaged for more than 10 days without being started. When I did start it, the engine screamed at me as I backed the car ...
14
votes
5answers
73k views

Is it possible to harm your car by giving someone a boost?

This post explains why it's a potential hazard to clip to the negative post on the dead battery when giving a boost. But I've also been told that I could damage the electronics in my own car if I give ...
2
votes
2answers
208 views

Does intermittent starting difficulty indicate alternator or starter?

Tl;dr: Car is having trouble starting, and I'm wondering how to determine if it's the alternator or the starter. I don't experience the longer turn over times of a typical starter malfunction, but I ...
4
votes
2answers
2k views

When reconnecting a battery, why connect the positive first? [duplicate]

When reconnecting a battery, why is it recommended to connect the positive lead first, and the negative lead last? What difference does it make if they are connected in the opposite order?
2
votes
2answers
2k views

Mercedes ML 430 will not start. No click, no electrical lights nothing.

After taking a nap in the parking lot at my job, the driver's seat (power seating) -- the passenger seat did work-- I had laid back could not be readjusted. After work I went home (3am closing shift). ...
0
votes
1answer
84 views

Does a corroded starter drain battery?

I know a "bad" starter can drain battery, but am unsure what constitutes "bad enough" to allow a starter to drain the battery. Suppose a hypothetical coolant leak has corroded one's starter. Would ...
2
votes
3answers
8k views

Rover 25 - My battery light starts flickering on/off on the dashboard

My girlfriend noticed this yesterday and thought it was odd, it stopped but started happening again this morning on my way to work, I think its a V plate.... "as I’m driving along my battery light ...
-3
votes
1answer
262 views

Jumping car battery [closed]

Donor cables hooked up correctly, while the receiving car cables were reversed. It didn't start, but smoked instead. Mechanic shop used a portable jumper, then used receiving car again and had cables ...
1
vote
3answers
1k views

BMW 330xi car keys dead

I have 2006 BMW 330xi whose car-keys (the automatic one) is dead. I think its batteries are dead. What are my options? I tried driving around to charge it but that didn't work.
3
votes
0answers
70 views

Problems with starting my Motorcycle [closed]

I have a Honda 2003 VTX 1300 S Retro that will not start without a jump. I just purchased a new battery on line (Chinese) for this type of bike charged it and still getting the same results as before. ...
1
vote
2answers
129 views

Car Battery problem: The car did not start

Yesterday, my car did not start and I had to ask the ADAC (automobile club in Germany) to come. The problem was in the battery. The ADAC guy connected my car's battery to another battery then the car ...
1
vote
2answers
2k views

2011 Dodge Grand Caravan Intermittent Start Failure

We bought our van last November from a dealer. Warranty is over :( Now we've got intermittent startup problems. The main noise is the sound when the engine is trying to turn over but immediately ...
4
votes
1answer
33 views

Weird charging issue

I have a 2005 Honda Odyssey that I changed the battery on about a month ago. I was a little paranoid that I might also have a charging problem so I've been keeping a little voltmeter plugged into the ...
4
votes
2answers
5k views

2005 Chevy Cobalt won't start, sounds like a machine gun

I haven't driven my car in about a week, and when I went to try and start it today, it would not start. It has enough battery to play the radio and whatnot, so I'm not sure if it's a battery related ...
3
votes
1answer
2k views

Car won't start - replaced alternator - didn't help

I have a 5-6 years old Mazda 6 2010, 2.5L engine. My car simply won't start. I had this issue yesterday, so I called roadside assistance and they were able to jump start my car. I drove straight to ...
12
votes
2answers
1k views

What can we reliably tell from an in-vehicle battery voltage display?

The Red Cross division I am with recently purchased a new ambulance. It comes with a touchscreen display in the cockpit where we can control lights, sirens, check the temperature in the back, control ...
4
votes
2answers
131 views

Car won't start with a perfect new battery

I have a Toyota Tacoma 2001 and my car won't start off the battery under the hood. The battery is brand new and has a full charge. It's been working perfectly for 3 months since I installed the new ...
6
votes
1answer
102 views

Starting using a deep-cycle battery

This weekend, during a camping trip, the starter battery on my 2001 VW Eurovan camper started to show signs of weakness - cranking was much slower than usual and took about 5 attempts to get the ...
5
votes
2answers
85 views

What to do when accidentally overfilled a car battery

My car, a 2003 Toyota Kijang (known as Toyota Revo in other markets) uses a non maintenance-free battery that has to be topped up every now and then with distilled water. Today, while filling it up, ...
4
votes
3answers
694 views

Is it safe to charge two batteries off of one alternator?

Right now I have a 3000 Watt invertor wired to a 100ah sealed deep cell battery that I trickle charge at night. My plan is to run #6 wire from the battery in the engine to the spare battery so the ...
3
votes
3answers
13k views

Battery light comes on after starting the car. How big of a problem is this?

On my way to work this morning, the battery light came on. I would say it was about 2-3 minutes after I started the car. My drive to work is only a 10 minutes drive, and the light was on the whole ...
28
votes
3answers
11k views

Jump starting a dead battery: Connect black wire to negative pole of battery or grounded metal?

Most of the advice I've seen for jump starting cars instructs to connect the black wire to a bare piece of metal on the car with the dead battery. However, I've always just hooked up both poles to the ...
0
votes
3answers
77 views

Do I have battery or engine problems?

Yesterday, I used my car to drive literally 2mins. Away from my dorm building to get to my class building and back because of bad weather. 30+mins. Later I come back outside and use my remote to ...
3
votes
1answer
71 views

How to dispose of battery terminal clean up leftovers?

Today I cleaned up the corrosion on the terminals of my car battery. I have a 2010 VW Jetta. I used a toothbrush and baking soda mixed with water to clean the battery terminals. Now the terminals ...
1
vote
1answer
100 views

Disconnecting negative battery terminal

Why do almost every automotive procedure instructions start by saying: Disconnect the cable from the battery negative terminal. ?
3
votes
1answer
71 views

Battery terminal connection issue

I have a dodge caravan 2012 and I recently got an electronic anti-rust device installed. 3 weeks after, I experienced a first problem. I started the engine then it stopped after 2 seconds. I ...
1
vote
0answers
159 views

How long will a 12V vehicle battery last if vehicle not used? [closed]

Without using a battery charger, about how long will a 12V vehicle battery last while sitting connected in an unused vehicle? In other words, how often do you need to drive a vehicle in order to keep ...
3
votes
4answers
15k views

Should I use coca cola or baking soda + water to clean my battery clamps?

The clamps that are attached to the car battery are corroded, I was told either of these liquids will work. Which one is better? Is there a how to guide on the exact steps I need to take? With my ...