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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What precautions are needed when charging a car battery in an apartment?

Suppose a car owner lives in an apartment building and parks his car nearby. He wants to detach the battery, bring it home and charge it with a mains-powered charger indoors. How to properly handle ...
6
votes
2answers
49 views

Is it better to hook up a Battery Maintainer for 2 months outside, or take our chances with the battery?

My wife and I are going to be out of town for 2 months, and one of our cars will be staying home and not getting much driving. We have a Black and Decker Battery Maintainer that we were considering ...
0
votes
0answers
15 views

Hybrid car battery compartment

Why are the battery mounting arms in the luggage compartment not painted and protected from corrosion? Some are painted and some are not. Is it possible to paint them with an anti-corrosion ...
4
votes
2answers
6k views

Could less than optimal battery charge prevent starter bendix drive from engaging flywheel?

With a less than optimal 12.2 volts at the battery terminals and the bendix drive at the starter failing to pop and engage the flywheel, would battery charge be a likely cause of such a failure? Or ...
6
votes
2answers
89 views

Honda civic 2003 dead battery from cold

My Honda Civic died after the temperature dropped lower than -30°C, and will only start now when I boost it. The previous owner told me about this, and he said he replaced the battery. But now, it's ...
5
votes
1answer
60 views

Is it possible to rebuild the batteries of the Nissan Leaf?

I've seen many used Nissan Leafs being offered for a very low cost (as little as $6000 as of 2016), but I'm concerned about the lifetime left in the batteries of those cars. Nissan says that they will ...
0
votes
2answers
28 views

86 ford ranger wont start

For awhile my trucks ignition has been acting up and I would have to roll the ignition. back and fourth several times before it would start but one day I went to crank it and the truck acted like it ...
2
votes
1answer
20 views

2004 Volvo S60 starting issue

I am interested in buying a 2004 Volvo S60. The guy selling the car says: "It won't start. When you try to start it. its as if the battery was bad, but it's not" Does anyone know what that means? ...
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votes
1answer
41 views

Where Does My Boats Main Negative Battery Terminal Wire Go?

Just rebuilt most of a 2 stroke jet boat. ( if you need want any boat details, see: this thread ) When I purchased the boat, the thickest negative battery terminal wire was not connected to ...
4
votes
3answers
50 views

Create Car Battery Load from Smaller Batteries

I want to determine if it is possible to chain together smaller household batteries to produce the equivalent output of a 12V car battery (temporarily). There is a practical reason for this bizarre ...
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votes
3answers
4k views

Getting information from manufacturing code on Exide car battery

If you can help me decode the following manufacturing code on EXIDE EA640 battery, especially which production plant has made it what was the date of manufacturing Code: 3EC28K5 Perhaps 28K ...
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votes
4answers
9k views

Jumping car with too many amps?

Is it bad to jump your car with too many amps (i.e., with a 1000 amp jumper vs. a 400 amp jumper)? Or does the car regulate how many amps it will take? EDIT: I was told 400 amps is enough for most ...
3
votes
0answers
21 views

is it just the battery

So last night my car wouldn't start . Everything in the car worked like the lights and radio but it just wouldn't start . I had my friend give me a jump and it started up no problem . So is this just ...
4
votes
2answers
180 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 ...
0
votes
1answer
12 views

Excide Battery manufacture date [duplicate]

Can anyone tell me when my battery was manufactured. It is an Exide 124R-60 Serial #2029261 The date is not punched out. Help
6
votes
1answer
5k views

How to track down an intermittent battery drain?

I know there are several questions on here about finding the source of a battery drain (like Battery drains by itself when vehicle is parked (parasitic draw) ). However I don't think the answers ...
6
votes
3answers
54 views

Charging Battery

Is it OK to leave your vehicle running to charge the battery. It was pretty flat but jumped immediately which tells me the battery is not bad. And how long is it safe to keep it running?
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votes
4answers
2k views

Is a bad battery bad for other components too?

I think my battery is on the way out - on cold mornings, it turns the engine over very slowly to start with, and takes a number of turns before the engine finally starts. This has been the case for a ...
12
votes
3answers
2k views

Why is gas around a car battery only at risk of ignition from jumper cables?

As pointed out in Jump starting a dead battery: Connect black wire to negative pole of battery or grounded metal?, you connect the black jumper cable to the dead car's chassis to avoid sparks made ...
2
votes
4answers
1k views

how much water can be safely added to a battery?

My 2008 Jetta SE 2.5L has the battery as follows: ENERTEC EMC // 1J0 915 105 AD // 12V 61 Ah 330A DIN // 540A EN/SAE. It would appear that the battery can no longer hold the starting charge after an ...
4
votes
2answers
7k views

how fast does the alternator charge the battery?

It would appear that the common word of wisdom is that car alternators provide 50A of output. I actually looked at the supposed specs for my 2008 Jetta 2.5L on the internet -- a compact car -- and it ...
4
votes
1answer
255 views

97 Jeep Cherokee check gauges light came on and then my battery gauge dropped down to 9 didn't lose any power?

I'm so confused I had just left my house and got 3 blocks away and my check gauges light came on, then my battery gauge dropped down to 9v. My Jeep didn't lose power, and the radio, heat, lights and ...
4
votes
1answer
55 views

Hyundai Accent Diesel 2002 alternator works on day but not when headlights are on

I have purchased Hyundai Accent diesel 2002 four cylinder from my savings .. its start every morning but not at night when the car's headlights are on. I couldn't start it after one or two attempt . ...
5
votes
1answer
35 views

How should I properly connect a high-current accessory?

I have a 2012 Honda Accord that I would like to install a radio transceiver in. At peak, its current draw is 22A @ 13.8VDC. Generally, the wisdom is that it should be connected directly to the battery ...
5
votes
4answers
1k 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
1answer
33 views

2004 mustang v6 new altenator and battery

I just changed out my alternator and got a battery last week. We can jump the car and the car will drive. While I was letting it just sit to run to charge more the car cut off and nothing happens. ...
7
votes
4answers
41k views

How to diagnose a starter motor that does not work

My e46 M3 would not start when I got to the parking garage after work. When I first turned the key, I heard a sound like grinding gears, but I was so startled that I immediately stopped trying to ...
10
votes
5answers
923 views

Can a car AC unit be run on just the car battery?

This might be a silly question but I was wondering if a car AC unit be run off entirely on battery or alternator? As this could help in Preventing power loss during important times such as ...
13
votes
4answers
205 views

Can a weak battery destroy an alternator?

I've heard a story that a weak vehicle battery can destroy an alternator or cause an alternator to fail early. Is this true, or is it largely fiction?
7
votes
2answers
8k views

How do you remove or even get to the car battery on a 2012 Honda Odyssey?

Summary How do you get to the battery on a 2012 Honda Odyssey, given that it is blocked by some type of intake tube**? **Edit: this used to say exhaust but I changed it to intake tube, given ...
8
votes
4answers
5k 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 ...
0
votes
0answers
22 views

Adding another battery and solar panels [duplicate]

I just bought a 93 chevy conversion van I will but turning into a full time camper van. I had planned on mounting solar panels to the roof and install lights on the inside. The stock lights on the ...
5
votes
1answer
51 views

Car battery ground appears to have severed, is it safe to jump?

I tried to start my car today but after a few splutters, the ignition quit (i.e. turning it does nothing now). The inside lights / brake lights don't go on anymore, so I assume the battery's dead. But ...
6
votes
3answers
4k views

AC blower won't turn on after replacing battery

I have a U.S. 2011 Volkswagen GTI. After the car wouldn't start (starter would crank but engine would not turn on) I decided it's probably time to replace the battery, and did. Car starts fine, but ...
5
votes
4answers
1k views

Renault Modus wont start

The car is a Renault Modus 1.4 16v Dynamique 5dr 2005. The symptoms are: Car wouldn't start last week. The car cranks but does not start. Push started the car in 2nd, engine starts. Took The car ...
0
votes
3answers
181 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 ...
50
votes
6answers
2k views

How to maintain a sometimes-used vehicle?

My daily commute changed from 9 miles to 9 feet when I started working remotely. That means I very rarely drive my car much. After a particularly hectic month, I didn't drive for about 4 weeks and ...
7
votes
3answers
2k views

How should I prevent my battery going flat when I leave my car alone for a month?

I will be leaving my Focus alone for around a month in (scottish) winter weather. Ordinarily I would make sure to take the vehicle out at least once a week to prevent the battery going flat in the ...
8
votes
3answers
1k views

Is charging my engine battery like this bad?

I left a 2001 V6 Honda Accord unrun for ~4 months (I don't have a license). Naturally, the battery is dead. I have heard that letting the alternator charge the battery from empty like this puts ...
10
votes
1answer
64 views

Is there any advantage to keeping the battery “topped up”?

I got an engine/cabin heater installed into my car right before winter, which was great for driving comfort this winter. One of its "side-effect" features is that it charges and keeps your battery at ...
5
votes
1answer
41 views

2013 Honda Accord clicking repeatedly on its own?

I come home at 2:30 today. Two hours later, I go out to the garage to find my car clicking repeatedly while the parking lights flicker in unison with the clicks. I hadn't even gotten into my car ...
4
votes
1answer
67 views

What are the cold cranking amps required to start Jaguar S type 3l petrol engine

I'm trying to find the typical* cold cranking amps required to start a Jaguar S-type 3 litre v6 petrol engine (UK) so that I can be more informed when I research batteries, boosters, chargers etc. ...
7
votes
1answer
222 views

How can I tell if a flat car battery is charging when hooked up to a trickle charger?

I've been researching charging flat batteries and I think, if I've understood correctly: Trickle charging isn't always possible from flat, because: Some trickle chargers don't charge at all unless ...
3
votes
3answers
549 views

Sudden electrical problems in 2001 Buick Century

My wife drives a 2001 Buick Century with ~130k miles. A few days ago, she was driving it home when she described that several warning indicators came on suddenly, the windshield wipers stopped ...
3
votes
1answer
77 views

When jump starting a car why not hook up the negative on the donor car last? [duplicate]

I understand the safety concerns leading to grounding to the frame or engine for the car with a dead battery. From what I've read the dead battery is the one with a chance of venting hydrogen, but ...
7
votes
3answers
583 views

Why do attempts to charge a flat car battery with an electronic battery pack give results as if there's a short circuit?

I'm not having a good weekend - car wouldn't start, even when jump started using a conveniently placed 12v generator battery (almost identical to this question, I suspect dodgy cabling to the ...
8
votes
1answer
289 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
1answer
46 views

I reversed polarity on a jump pack when attempting to start my 2000 Dodge Neon.

I attempted to jump my 2000 Dodge Neon off in the dark with a jump pack, and I accidentally reversed the polarity. The tire inflator on the jump pack landed on my positive starter wire and burned it ...
10
votes
3answers
508 views

How to upgrade a motorcycle battery to a bigger AH battery?

My motorcycle (honda CBF150) came with a 12V 3AH battery. I want to change the stock 35w headlight to a higher power one and connect them directly to the battery (the stock ones are not, and they ...
0
votes
0answers
50 views

Cleaned Battery Corrosion and Now Engine Won't Rev

I had a large build-up of battery corrosion on my car battery. I unplugged the cables off it, cleaned the terminals with soda. After reattaching everything, I now find that while my truck will start, ...