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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4
votes
1answer
21 views

Idle doesn't hold on 2006 Toyota pick up truck after giving a jump, actually failing to give a jump.

We have a 2006 toyota pick up truck and a 2000 mustang with a dead battery. Cable's have been Properly connected. 1, I can get no current flow, no jump from the toyota, yet it starts the pick up ...
3
votes
1answer
9k views

Dashboard lights are dim?

We own a 2011 Mitsubishi Montero Sport GTV. We noticed that the dashboard lights were dimmer than normal. What could possibly cause this? Would replacing the battery fix this?
2
votes
2answers
20 views

Higher CCA in batteries in warmer climates

If a battery with a higher CCA capacity is used in a warmer climate, would it effect the battery's performance in the longer run?
6
votes
1answer
32 views

How to diagnose low alternator output

My car (a 1991 Citroen BX 1.4) has been giving me alternator problems since I got it, the alternator failure came on every now and then and dimmed or disappeared when I revved the engine, my first ...
7
votes
3answers
926 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 ...
5
votes
2answers
46 views

Car Won't Start After Disconnecting and Reconnecting Ground Cable

I wanted to reset my check engine light to see if a problem I think I fixed resurfaces, so I disconnected my negative lead from the post. When I reconnected the lead the car refused to start. ...
2
votes
1answer
34 views

Will new 100 watt headlights be too much on battery?

I want to install these new powerful headlights but they use around 100 watts. I have a 12v 45Ah battery which gives me around 540wh. Now I know that's not even half but when you factor in all the ...
1
vote
1answer
33 views

Do Ah in Car batteries matter as much if your alternator is working correctly?

Do The amp hour ratings on all car batteries really matter as much if your car alternator is working well? Ah is the capacity but if you have reliable charging do it still matter as much? Cause its ...
6
votes
4answers
158 views

How do you anticipate battery failure in advance?

On several occasions (in different vehicles) I've had batteries fail without warning, leaving me stranded and needing a jump, or even a tow. There was NO prior indication of a problem, such as slow ...
5
votes
2answers
171 views

How many volts/watts do a car battery give off?

How much power does a car battery contain, and for how long? I heard that batteries give off a massive amount of power for the first few minutes, then drop off. Let's say this is a new battery, fully ...
4
votes
6answers
43 views

Start a dead battery car with a power/USB charger

today my car couldn't start beacuse of dead battery. The battery is not old, I simply left my dash cam attached for a few days without using the car... I'm alone at home and my car is in a difficult ...
7
votes
1answer
111 views

Battery tender vs trickle charger

I understand battery tenders are used to keep batteries charged for long term storage, and trickle chargers are.... also used to charge batteries? What are the differences between these two devices, ...
4
votes
1answer
29 views

Is the diagnosis from a battery/starter/alternator tester meaningful?

At many auto parts stores they will test - often for free - a vehicle's electrical system by attaching a device to the positive and negative terminals of the battery. That's all they do. Then you ...
9
votes
3answers
622 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 starter)....
3
votes
1answer
36 views

Motorcycle Lithium Battery - Potential Parasitic Drain

I have a track racing motorcycle with a lithium battery, the battery has gone flat on two separate occasions as a result of standing for a period of time. The first time the bike was standing for ...
8
votes
1answer
306 views

battery tender keeps charging

Results for: so I have a motorcycle and use the Optimate1 battery tender. One day while using the tender I left and came back 6 hours later to find the Optimate still charging my battery. The battery ...
8
votes
4answers
739 views

How can a fuse drain a car battery?

My car battery drained itself after a week of not being used. I was researching how to identify the cause, and saw a comment under this article saying: What if I am not detecting a reading but the ...
3
votes
1answer
32 views

Is my voltage regulator really bad?

Yesterday, my wife's car (a 2009 Toyota Sienna AWD) wouldn't start, and this came clear out of the blue. A jump fixed it. We let the car sit idle for a good 30 minutes, and it was able to start up ...
5
votes
1answer
63 views

Why would my Toyota Corolla die soon after starting it?

I have a 1996 Toyota Corolla DX with about 200k miles on it. It runs good for the most part, but recently had a problem where it would not start. Napa tested my alternator, which failed, so I ...
6
votes
2answers
45 views

Does Coil rewinding have a negative impact with the existing system?

I have a question towards the rewinding of a coil. Here is the tech spec of the bike:- Battery : 9 Ah, 12 V Generator : 12V, 100 W Fuse: 12V 10A My bike comes with an electrical spec of DC (...
3
votes
1answer
60 views

What is causing my starter to arc?

I put a new solenoid in and went to start the motor. The starter ran continuously with the key off. I overrode the solenoid and tried hooking the ground to the engine, and I touching the positive ...
4
votes
4answers
1k views

Why do I connect the positive and the negative to the battery on a boat?

My trolling motor for my boat has a black and a red connection. The red goes to the positive on the 12 volt battery. The black goes to the negative on the 12 volt battery. Could I connect the black ...
4
votes
2answers
72 views

Are there some kinds of modern car, which cannot be bump-started?

Over the weekend I had a situation where a 2010 VW Golf Diesel had a flat battery. I had a nice long but gentle hill to let it roll down, so I attempted a bump start, which didn't work. When starting ...
5
votes
4answers
14k views

My battery was too low, and now my check engine light is on

I've noticed it in the last year (2013) that my 2008 Jetta with the original OEM battery would be taking a little longer to start than before, sometimes (but very rarely) not starting in the amount of ...
3
votes
2answers
22 views

How long should a battery take to recharge from a wall socket charger?

My battery died and I suspect the alternator. To test I need to get the car running again and so borrowed a wall socket charger. I have no idea how long I need to let the battery charge for. Would ...
10
votes
6answers
2k 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 ...
4
votes
2answers
31 views

2006 vauxhall astra keeps having battery drained and wont start

Hi i bought an 06 astra in october and since then its had 4 batteries and a new alternator but it still dies over night. I was told potentially the radio was draining it and that was a knows fault. I ...
5
votes
1answer
61 views

Left car running with heat on; now won't start - need help diagnosing situation

I left my 2014 Hyundai Elantra running with the heat on for about 80 minutes (having intended only 30 or so), with the intention of helping dry out the backseat after an incident with a rainstorm and ...
2
votes
1answer
28 views

Draw more current than its original ouput

I am have a battery capacity of 9 Amps 12 V. Factory electrical system of the bike is DC (horn, indicator, etc.) + AC (head light). Now I have changed the remaining AC to DC. (light system with ...
3
votes
2answers
59 views

Emtrac Plus Battery

Can someone tell me where is Emtrac Plus Silver Alloy Batteries manufactured. The brand was offered to me recently, looked very good and I bought it. Hope it performs as well as it looks.
3
votes
1answer
25 views

2001 Nissan Altima won't start

We got this car a month back, and haven't driven it much because we needed to notarize it. So it's been sitting in our back yard for a month. Yesterday we tried to start it up, but it is making a ...
5
votes
1answer
58 views

DIY OBD II “Memory saver”

Since I had a need for a "memory saver" while changing a battery on a 05' S500 I decided that instead of borrowing one from a friend all the time, I will make my own.. Now isn't it just a power supply ...
4
votes
3answers
25k views

Factory panic alarm going off after changing battery [97 Toyota Camry]

We just changed the battery in our 1997 Toyota Camry now as soon as we connect the battery the panic alarm goes off and all the doors lock. How do we stop this / turn it off. ///note: the battery in ...
6
votes
1answer
36 views

Battery drain when car is inactive

My 1990 Vanagon camper has an after market Kenwood radio NOT wired through the ignition circuit but instead wired directly to an auxiliary battery which also powers other domestic camping stuff like ...
1
vote
1answer
27 views

Sudden loss of some electrics whilst driving

Strange sequence of events, hoping someone can figure it out with me. I was driving home and first noticed after 30 mins of driving the temperature was very, very low. It is winter here in Aus but ...
5
votes
1answer
200 views

Are there any modern diesel engines that require electricity to continue running?

I was reading this question about an owner checking the alternator by disconnecting the battery, which is an easy way to validate on a gasoline engine. The single answer assumes that the OP is ...
3
votes
2answers
4k views

Nissan Altima Alternator/Battery Problems

I own a 2005 Nissan Altima which has been having alternator/battery problems for past 1 year. My car has 112,000 miles on it. My car battery was past warranty so I had the battery replaced about a ...
2
votes
1answer
20 views

LEXUS ES300 '99

Ok so im having a problem that been happening for about 3 weeks. At one time we were at the movie drive in and my car died after 10min. Lights were all coming on and it would make several clicking ...
3
votes
1answer
49 views

Honda CBF600NA with 150 CCA Battery?

I have a Honda CBF600NA (A = ABS variant) PC43 (second generation) and my battery probably went dead recently. I'd like to buy a new one. My dead battery I've found inside the motorcycle is GS-Yuasa ...
2
votes
2answers
48 views

What could be causing battery drain on a 2009 Honda Pilot?

My sister has a 2009 Honda Pilot that's got some issues with the electrical system. The battery frequently drains overnight (every other day or so). When driving a lot (several hours or more) the ...
3
votes
0answers
29 views

Is battery bus voltage available via OBD2 scanners for 98 Avalon?

In order to supplement the inadequate-by-design alternator BIT circuits in my 98 Avalon (alternator failures have stranded us; no instrument panel warnings of charging failure), I'd like to either ...
9
votes
3answers
2k views

I charged my car battery with no water in it

I have a car battery that I am trying to recharge. It measures 3.28v, and my charger is a Selmar Turbo 8. This is the charger I am using: Here is a picture of the ammeter gauge that I found ...
2
votes
2answers
58 views

Timing belt replaced, engine dies after jump starting

I had the timing belt replaced on my 2005 Chrysler. I drove for a week, and it appears the battery died. I used jumper cables to start the car, but as soon as I took the cables off the engine died. ...
3
votes
0answers
22 views

how much electrolyte is usually used on a regular 100 amp lead acid battery

I want to replace my 100 amp hour lead acid battery electrolyte, but i'm not sure the amount required. I want to make it right the first time. So if someone could please tell me how much apprx ...
1
vote
1answer
23 views

Changed alternator bought new battery will not start

Got a new battery it would start. But auto zone told me alternator was bad. Changed it now i have nothing no crank or start. Hooked it all back up like it was
7
votes
2answers
446 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 ...
3
votes
2answers
61 views

Are there potential issues with leaving a car without a battery for a few days?

I am sure I read, or was told, that completely removing a battery from a car is bad because it resets things in the car's computer or it dumps some sort of acquired tuning data, or something along ...
2
votes
1answer
33 views

Light bar vs Car battery

I have a light bar that pulls close to 22 amps how long can I have it on and my jeep off without hurting my battery?
7
votes
1answer
85 views

No power to my 1988 LS650 Suzuki with new charged battery

I have a 1988 Suzuki LS650 Savage from someone who jumped it off with running car. Put a new battery in it and now I can't get any power. No lights or anything. What do I need to check?
4
votes
1answer
24 views

2010 Hyundia i30 - Should I keep the batter lead removed in order to prevent the battery from flattening out?

I drive 2010 Hyundia i30. I recently had my battery flat out after I did not use it for 3 months. The mechanic who helped with the battery situation suggested that I can keep one of the battery leads ...