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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1answer
71 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, ...
0
votes
1answer
46 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
25 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 ...
1
vote
1answer
44 views

RPM problem Ford 2009 Crown Vic

I recently removed the car battery and plugged it again. I then noticed that when I turn the A/C on the RPM goes up and down 1000~500 rpm and sometimes when I shift the gear from N to D or R the car ...
0
votes
1answer
13 views

charging battery bank with two vastly different batteries

I have a ctek D250S DC-DC charger in my vehicle charging a 12V 100Ah agm battery from solar and alternator with up to 20A. While travelling I need to charge a 12V 7.5Ah SLA battery. Conneting both in ...
2
votes
1answer
45 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 ...
3
votes
3answers
113 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 ...
4
votes
1answer
127 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
118 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 ...
2
votes
1answer
33 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 ...
6
votes
9answers
2k views

2 Volts on Car Battery

My car battery has gone completely flat after leaving my car parked up for about a month. Tried turning over the car today, and none of the lights on the dash light up. Ran a multimeter across the ...
4
votes
2answers
1k 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
91 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 ...
0
votes
1answer
56 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 ...
0
votes
1answer
59 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
311 views

Are inverters bad for your car?

I bought a Duralast 130W inverter and it says 260 peak watts and it plugs into the 12V cigarette lighter. I want to charge my HP laptop with it. Is it bad for the car?
7
votes
2answers
165 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 ...
1
vote
1answer
143 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
1answer
89 views

White Powder Forming on Battery Hold Down Bracket

I replaced the battery on my 98 Mazda 626 GF 2L about a month ago. I haven't driven it for about two weeks, and noticed the voltage is down from about 12.57 to 12.02 so far. I just noticed that ...
1
vote
2answers
138 views

Impact of cigarette lighter ports on car battery

I have a cigarette lighter hole in my car that produces 12V. I bought a cigarette lighter extender that has 3 cigarette holes and each hole has 12V so that's 36V instead of 12V. Will that damage my ...
4
votes
2answers
63 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. ...
3
votes
0answers
65 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. ...
0
votes
2answers
78 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 ...
4
votes
1answer
25 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 ...
3
votes
1answer
94 views

Switched battery terminals when installing, 2008 Chevy Cobalt

2008 Chevy Cobalt LS I was installing a charged battery and accidentally put the positive wire on the negative terminal and then as soon as I touched the negative wire to the positive terminal I ...
7
votes
1answer
341 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 ...
2
votes
0answers
28 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 ...
3
votes
1answer
95 views

Wiring Harness / Fuse Panel Repair

I have a 2006 Dodge Magnum and a friend of mine was changing the starter. Forgot to unhook the battery. And when the hot wire on starter grounded out it Melted the Negative battery cable until it ...
3
votes
1answer
559 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 ...
11
votes
2answers
729 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 ...
2
votes
2answers
62 views

Viable replacements for lead-acid batteries?

Given the state of battery technology, is it viable for either motorcycles or cars to replace the original spec 12V lead-acid battery with a different type of battery? My question comes about as I ...
4
votes
2answers
93 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
3answers
2k views

Can I jumpstart a non-hybrid car from a hybrid or full electric car?

This morning I had starter battery troubles with my 2001 VW Eurovan. As it happened, my father-in-law arrived just at the right time in his fancy new Toyota Camry hybrid. So we opened the hoods, dug ...
6
votes
1answer
70 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 ...
3
votes
1answer
593 views

Is it recommended/necessary to wear rubber gloves while replacing a car battery?

I'm not too car-savvy but I want to start working on my car on my own. My first challenge has arisen: replace battery. Do I need to concern myself with being shocked while trying to change the ...
3
votes
2answers
527 views

Will an auxiliary battery hurt a vehicle's alternator?

I am going to be road tripping and living out of my SUV for a while. I need a way to power a tiny portable cooler/fridge 24/7 and would like to be able to power my cell phone, laptop, and maybe a few ...
3
votes
3answers
223 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 ...
5
votes
0answers
158 views

Battery Light Won't Go Off Since Changing Battery

I just changed the battery on my 98 Mazda 626 and now the battery light comes on and stays on after starting the car. I checked the battery and it's reading 12.8v with the engine off, and 13.8 with ...
5
votes
2answers
68 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, ...
5
votes
2answers
160 views

Portable jumpstart kits: why aren't regular car batteries this small?

I was looking at the details of this jumpstart product: It claims to be 2 lbs and 14.2 x 12 x 3.5 inches, which I think is for the outer black canvas case, so I would guess the actual device is ...
3
votes
1answer
52 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 ...
0
votes
3answers
70 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 ...
9
votes
1answer
845 views

Remote Key Fob working only inside the car (close to reciever)

I am struggling to get my Peugeot 308 2-Button Remote Key back to work. I noticed first issues when my Remote Key unlocked / locked the car after several attempts. Then one day it suddenly did not ...
1
vote
1answer
78 views

Disconnecting negative battery terminal

Why do almost every automotive procedure instructions start by saying: Disconnect the cable from the battery negative terminal. ?
4
votes
4answers
88 views

Does draining a battery typically leave it in a state that it won't take a charge?

My son borrowed a car and the battery seemed fine, car started fine every time. However it died after my son left some overhead lights on in the car overnight. We jumped it, and he drove about 20 ...
2
votes
1answer
64 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
101 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 ...
2
votes
1answer
64 views

How much amperage is an average car battery?

So, this is in general terms... But say you have a flat battery and you wanted to start a car without another card battery? Car batteries are 12V but I'm not sure how much current they are. Do they ...
1
vote
2answers
162 views

Car won't start, dies after jump

I have a 2007 Ford Mustang, 6 cylinder. A few hours after I drove it, the battery was completely dead. It can start with a jump, but if left to idle the engine stops soon after the cables are removed. ...
2
votes
3answers
4k views

Interpreting AC Delco's manufacturing date for car batteries

I understand that AC Delco encodes the month of manufacturing a car battery using two digits and encodes the year by one digit. The battery I just purchased, for example, is labeled P124R, which, ...