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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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1answer
33 views

Frozen maintenance free battery

I have a frozen maintenance free battery with a life of 14.5% life according to my dashboard display. I really can't afford to replace it at this point. I had it boosted and let it run for a half hour ...
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40 views

Why does a relay not short the battery?

I am planning on hooking up a 4-pin relay to supply power to ignition coils on a motorcycle. The on/off switch on the diagram below is the ignition switch operated by the key. Ignore the fact that ...
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149 views

How to connect a jumper cable to this battery?

Today I tried to charge the battery of a car that has been standing still for about 2 months with my own car. When I tried to connect the red cable to the battery of my car I was confused on where to ...
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54 views

Can I trickle charge battery through OBD2 port 2007 civic

Trying to determine if 2007 civic OBD2 port is live with key off so I can trickle charge with a solar panel
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20 views

turn off battery diconnect whileunder load

If I turn off my battery disconnect while under load will it work such as my starter on my motorcycle is push button direct hook up no relay , if I disconnect my switch will it let go or ark out and ...
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34 views

Starter or Battery? (or Alternator?)

I have been lent a car and I took it out for the first time last night (it's a 2003 Chrysler). The car had been left for a while and the battery had been disconnected. I connected the battery and ...
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1answer
37 views

Is a 15 minute drive to and from work enough to keep a battery topped off?

Me and my SO were given that as the cause of our battery being randomly dead every month/month and a half. Her drive to and from work (about 15 minutes) is not enough to keep the battery from ...
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25 views

Trunk Release Malfunction

2003 Mini Cooper The battery is dead so the key fob and toggle switch on the dash don't unlock the trunk. I pulled on the release ring under the back seat, but it only partially releases the trunk, ...
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Prius C Long Term Storage. Do I need to unplug the HV battery?

I will be going out of country for at least a year. Do I need to remove the HV battery before I leave or will I be fine?
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23 views

Spartan Lawn Tractor

I know what causes battery terminal corrosion but I've sort of got a dilemma. The long screw that holds the battery in place corroded to a concerning degree. It looked just like the positive terminal ...
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1answer
24 views

Should I replace my discharged motorcycle battery?

I have a 250cc fuel-injected Honda motorcycle, it uses a 12v 6Ah battery (Yuasa YTZ7S). Its only add-on is a GPS tracker with alarm. Recently battery got discharged (engine couldn't start), so I ...
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Car won't start after sitting for 2 years even with a jump. Is it a starter or alternator issue?

My parents have a 2001 Pontiac Aztek that's been sitting for two years. Apparently, before they stopped using it, there was an oil leak that caused starter problems (they couldn't find the leak), and ...
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1answer
63 views

Can I use a lower Ah battery in my motorcycle?

Internal combustion, 250cc fuel-injected motorcycle. Original battery is 12V 6Ah (10 hr) CCA: 130A The new battery is 12V 4Ah (10 hr) CCA: 70A Should I worry for anything apart from the actual ...
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2answers
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Why battery charger has rated amp hours

I have gotten a car battery charger as a present which is rated at 6A max and is also labeled up to 65Ah max. I'm not understanding why there is a battery capacity indicated on the charger when the ...
2
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1answer
51 views

New ish battery, new alternator, battery light stays on (dim)

Battery was replaced 7-8 months ago (Interstate batteries brand) Got new alternator today after car died When picked up, battery light was faintly glowing Mechanic said everything was fine and it's ...
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1answer
39 views

Why does my truck turn off

Hi I have a 2000 F250 truck and I am experiencing difficulties keeping it started . So my question is when i jump it, it's fine as it's in park but when I go to put it in gear it shuts off? Or when I ...
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1answer
29 views

powered window and back windscreen wiper anomaly

At first i thought it was random, then i realised that there is clearly a pattern: I start the car then i check and both the wiper and the window works as expected. 20-30-40 minutes down the road i ...
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1answer
32 views

Car battery voltage always drops even after full charge

I bought a new 2019 Kia Forte last year, from the day I received it, its battery (lead-acid AGM) read a slightly low open voltage of around 12.45V. I figured out the car must have been driven on the ...
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49 views

Battery shows 13v after adding acid but won't start car

My car battery won't start the car so I added acid and water and test the density with a hydrometer, now it is 1250. The battery light is turned green after adding acid, but voltage reach 13 (I don't ...
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0answers
35 views

Powering a large electrical load with an alternator and high idle system

I have to install an inverter in a work truck that will power work lights, some power tools, and other equipment too be used while the truck is parked. I've calculated the load to be at max 750 watts, ...
2
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0answers
21 views

2002 Civic not starting when cold in GA tmeps 40's

So, I am having the same problem but in GA, USA. My car will not start when it's cold and I'm not talking negative's. This just started a couple of weeks ago when the temps dropped below 40 degree F ...
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1answer
37 views

Alternator health check

My car (Fiat Grande Punto MY2008) has been having an occassional battery light and failure of the power steering. Perhaps once in every 10-15 startups, and is resolved by restarting the car. The car ...
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1answer
80 views

Is my car battery health bad and should I replace it?

I bought a 2010 Golf in march and I do not know how old the battery is (no dates on the battery) and with winter coming in I feel a bit nervous. Usage I do not use the car very often but I try to ...
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Why are these wires sticking out of battery terminal?

Could someone please explain why there are copper wires sticking out of the positive terminal on my battery? I’m trying to jump start it without success, and want to get it to an auto parts store to ...
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3answers
59 views

Motorcycle LiFePo4 replacement battery vs Gel vs AGM

I've researched quite a bit but could not find a definitive answer to this. Background: My old bike (already sold) had a starting problem - after a few months it would barely spin the engine up and ...
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2answers
27 views

Replacement AGM battery for 2007 Ford Fusion

I live in a cold climate (northern Canada) where temperatures now are already -20C during the day. I have a 2007 Ford Fusion SEL 3L which doesn't get driven much and is parked outside, without a ...
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0answers
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2013 Mitsubishi lancer and the battery terminal snapped

Im looking for a replacement but the only part that pops up is a 2003-2006 lancer battery terminal, my question is would this be a sufficient replacement?? It does look the same
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34 views

BMW E46 320D Battery Replacement

My 5 year old battery is dying, and I'm looking for a replacement. When this one was fitted, the car wasn't mine yet. There's also no label on the top with some details. Therefore, I wanted to know ...
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1answer
42 views

How to tell what type of battery this is?

I would like to know whether it's either a lead acid wet cell, lead acid gel, or AGM battery. After reading a bit I see one method is the remove the battery and give it a shake to see if it contains ...
2
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3answers
73 views

Can anyone help me interpret this multi-meter reading?

My 2008 Outback’s battery goes dead when it sits for a night or two. I’m looking for a parasitic leak. Can anyone help me interpret this meter reading? I have it in parallel between the neg battery ...
2
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1answer
95 views

Jump starting using a car with no negative terminal

Hi the the only car I have to jump start my own has no negative terminal so will it still work if the black lead is just connected on a metal part of each car?
2
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1answer
347 views

Car no longer starts, behaved weird before giving up

This is a ten year old diesel car from Ford, the Ford Focus DA1. Let me start with the chain of events: Car has been standing outdoors for two weeks without use, had been almost frozen but not ...
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4answers
80 views

Does car need to be driven rather than idle to ensure battery recharged?

My car is inactive for months at a time. I started it up and just left it running idle for 30 minutes. Would that be sufficient to recharge the battery or does it need to actually be running at ...
0
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1answer
38 views

How long can I run car accessories for before my battery goes flat?

I have a Hyundai i10 1 litre 2015 model. The battery it uses is 52ah and 12V. Given the scenario that the car battery is sufficiently charged after a long drive, the engine is off and I have the ...
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1answer
35 views

Any benefits of a relay over a dead mans switch between two 12V batteries apart from preventing discharge of starter while car is off?

I am fitting a second "leisure" battery in my car. It will be a 12V 115-150Ah AGM lead acid battery for use when the engine isn't running with loads up to 500W, generously, in practice It will be 250W ...
4
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2answers
60 views

Car Battery Loses Connection During Cold Weather

Background: I've been having an issue with my car recently where the battery will "die" when I attempt to start my car the morning after an extremely cold night (<32 F). I drive a 2013 Hyundai ...
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3answers
58 views
4
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1answer
134 views

Do you need to put grease on car battery?

Some cars have grease on the battery terminas and some don't. I have just replaced a battery. Is it needed? Why? Can I just go without? Also I want to clean the top part of my terminals with baking ...
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2answers
47 views

Charging Battery Pack with alternator

I'm thinking of making a car battery with 3.7 V Li-Ion batteries arranged in 4s configuration (14.8 V). Would an alternator that produces 13-14 Vdc be able to charge the battery pack at all? Thanks
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1answer
45 views

Toyota Matrix 2012 – Can I assume a running alternator must supply perfect electricity even if the battery is dead?

I have a 2012 Toyota Matrix. It is very similar to Corolla. The car struggles to start, and my first guess is to simply replace the battery. However, when the car starts (means car alternator ...
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0answers
17 views

Dodge caliber 08 battery light

My car battery light came on, so I replaced the battery and the alternator. This fixed my jumping and stuff, but now my battery light came on while driving in the rain. I always have problems when ...
2
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1answer
55 views

voltage starts at 14 every morning but then drops below 12 shortly after driving

Just bought a 1998 Nissan Frontier. It has a new alternator. For a while I was getting shorts at the terminal connectors so I replaced both. That seemed to fix the short but then I started having ...
0
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1answer
438 views

Exide battery manufacture date [duplicate]

I can't understand the date of manufacturing of an Exide battery EC440. The code is 8AE12-1 but I can't find this kind of code in the Exide table. Can anyone please help me? Thanks
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5answers
1k views

How does a manufacturer determine the warranty for the battery?

I was looking at replacement batteries for my car (Honda Insight). The dealership was selling a battery that had a 100 month limited warranty. The next highest warranteed battery from Autozone, ...
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1answer
119 views

Is it bad to rev the engine on a hybrid car / What will happen?

I was wondering, is it bad to rev the engine on a hybrid car? Also what would happen if I did rev the engine. Would the battery be used or would the gasoline engine start.
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1answer
57 views

What is this liquid/anything to be concerned about?

As you can see there is a cable with some syrup coloured gunge or whatever on it, on close inspection it actually looks like it’s coming out of the wire. The cable itself I think goes from the fuse ...
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1answer
60 views

Help diagnosing start up/battery drain problem

Ii previously asked this question New batteries keep getting drained, any ideas of cause? Sorry was not sure how to link question. Anyway I got a multimeter and here are my findings. Firstly the ...
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1answer
14 views

2016 chevy malibu battery

I have a 2016 chevy malibu i tried to start my car last tuesday it would not start light radio everything came on. got a jump it started 6 days later same issue it says in the dash service battery ...
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2answers
70 views

Is there a way for the dealership to revive a dying battery?

Long story short, 2 years ago, my wife brought her car in for normal servicing to the dealership. They told her the battery needed to be replaced. She said she didn't want them to replace the ...
5
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1answer
243 views

Should I replace the battery terminal clamp if some material is missing?

I recently had my battery fail on me and need to get a new one. While I was removing the battery terminal clamps I noticed there was a lot of corrosion. After I cleaned off the corrosion, I also ...