Questions tagged [charging]

The act of re-vitalising the plates inside a car's battery (voltaic pile)

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1answer
36 views

can I trickle charge a spare car battery (located inside the car) from the cigar lighter port while driving?

I keep a car parked in a lot in another state. I get out there every few months or so. The battery under the hood sometimes is dead due to the small system draws while the vehicle sits idle for a ...
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37 views

My car battery light is on

I have a 2010 Toyota Corolla S. Today, after driving around for 15 minutes, when I parked, my battery light came on. I took it to Autozone. After checking my battery and the changing system they said, ...
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50 views

MotoMaster Eliminator 1400A Booster

I have one question about charger booster. I have MotoMaster Eliminator 1400A Booster bought in 2014. I think its battery is dead, because it does not boost the car even when it is fully charged. Can ...
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1answer
30 views

12 to 24v charging with isolator

I'm trying to find the best way to charge my 24v solar battery bank off my 12v bus system. The simple way seems to be a step-up converter and a diode, but I'm wondering if I can replace the diode with ...
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67 views

If you connect 2 car batteries in parallel and one has a low charge, how much would the low charged one draw from the other battery?

I'm just wondering this for the sake of understanding. If you have a low charged battery that is connected in parallel with another battery (that is fully charged), how many amps would the low charged ...
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1answer
127 views

Fiat 500e charging EV discharged battery below “standard” charge level

I'm trying to revive Fiat 500e EV battery which is discharged after not using it for 3 months (second reason was bad 12V battery). I've disassembled whole battery pack below car and I have access to ...
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68 views

Is it safe to disable the stop/start system?

I want to permanently disable the stop/start feature on my Skoda Octavia Mk3 (based on VW). TL:DR; The implementation is faulty. Suppose I want to pass a parked car, and slow down for a car coming the ...
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1answer
181 views

Cigarette lighter fuse repeatedly blows when connecting car inverter

I was using this car charger to charge my MacBook Pro from past two months without any issue in my Swift Dzire 2012 model. Today, I connected two laptops at the same time using a multi socket ...
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2answers
67 views

Can I charge my laptop using a simple USB cigarette lighter

I’m not sure this is the same thing as the 100w inverter i saw mentioned in another answer. This is supposed to work for phones but I’ve never used it for my laptop as I’m afraid it’ll break it. It’s ...
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106 views

What is the Likelihood of a car alternator fault being due to worn field winding brushes? [closed]

TL;DR: If a 2001 Toyota Corolla alternator is faulty, how likely it is that the field winding brushes have gone open circuit? It's reasonably likely that the alternator is the original one.  ...
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42 views

Is the 3 pin plug provided in a cigarette lighter port inverter (12v-220) actually grounded?

I have been planning to buy a 12v car inverter, that plugs into the cigarette lighter port and puts out 220v with max 200watts, for sometime now. The one that I ordered is of brand portronics and has ...
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24 views

AM6 charging problem

I have an Aprilia MX50 (2004) and -although the engine runs perfectly- the charging voltage is low (around 4-6 V and it should be 13-14 V). I tried with another generator (the flywheel was still the ...
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438 views

Alternator squeal

98 rav4. I have a bad squeal, however I tried a new alternator and it did not go away. The charging voltage does not go above 12.3 and when I unplug the plug on the back of the alternator the ...
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1answer
369 views

12V AGM battery charging voltage

I have the following 12V car battery: Varta Silver Dynamic AGM 595901085 (12V/95Ah/850A), and the following car: Jaguar S-Type 2.7D. In the technical cars manual it says this: So in cold winter ...
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14 views

2003 Suzuki GSXR750 drains battery and won't start

I just bought a 2003 Suzuki GSXR750 and I keep having to replace the battery on it every time I start it. It will start maybe 4 times and run, then the battery is dead. Someone please help.
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116 views

Fiat 500e 2017 charger

i just owned a Fiat 500e 2017 sport package... i wanted to make sure that the charger that come with it is the real original one and not imitative, as i saw charger with different style, how i can ...
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1answer
43 views

93 Seca 2 won't start without a jump, battery good?

So i have taken the battery out and had it tested at autozone and they said the battery was fine. the solonoid is fine because if i hit the starter the motor starts to act like it wants to turn but ...
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119 views

2011 Ford Mustang Gt “Check Charging System” light after changing alternator

My mustang started showing a code for "camshaft position sensor" so I replaced it. 1 day later, it came back on, same sensor so I started doing research. Everything I read said it was probably the ...
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715 views

Alternator: amperage when charging a car battery (and time to charge)?

What is the amperage of a typical car alternator when charging the car battery, and how long would the alternator take to charge it (let's take a 60Ah battery as an example)? I have seen multiple ...
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1answer
104 views

How is alternator directly connected to vehicle electronics?

I've tried a lot of research but I can't find specifically what I'm looking for no one has actually mentioned this and I've looked at various wiring diagrams which still don't prove how this is ...
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1answer
862 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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1answer
74 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
58 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 ...
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2answers
73 views

What is the Problem

I have a 2004 Chevy Trailblazer EXT. I was driving down the road and my battery light came on. I didn’t know what it meant but I kept driving. Then my lights became dim and I pulled over and parked at ...
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74 views

if my alternator was tested and functioning properly why does my battery and brake light keep coming on in a 08 Nissan Altima 3.5

started my 08 Altima and put it in gear and it didn't have the power to go anywhere and then the car just died. bought a new battery and everything worked fine. now my battery and brake light on the ...
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2answers
388 views

Battery or what?

A few years back I picked up a 1989 Harley Davidson Sportster. I t was originally an 883, then the previous owner put in a 1200 cc motor. He threw a rod, so he said and had to have the cylinders bored ...
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38 views

How do I set the upper cutoff voltage for a car alternator charging the car battery?

With sustainability in mind, and trying to do something new, I am looking forward to charge my car battery using Solar Power, without making much changes to my car's electrical system. Basically I ...
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3k views

Alternator dying so junk car?

The alternator store rounded the bolt on my alternator so I can’t get it off my 2004 g35x. I changed the belts (there are two one for ac and one for alternator) since I did that the car has a voltage ...
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2answers
95 views

How can a battery indicator be on when the alternator is providing adequate voltage?

I'm under the impression that the battery light indicates that charge is flowing "out of" the battery. Normally the battery is being continuously overcharged by a couple volts, meaning that electrons ...
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1answer
160 views

Charging two 12V batteries wired in series by two car alternators

I have a spare engine sitting around and i've been planning on building a 220V generator from it. I'll be using an old UPS device which uses two 12V batteries wired in series to make 24V and connect ...
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1answer
64 views

Battery charging issue

I've got a 2012 Yamaha WR450F motorcycle which has a 3 phase alternator with a regulator/rectifier. Currently the battery is not charging when the bike is running and testing the voltage when running ...
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2answers
61 views

Battery only charges with parallel load - why? recoverable, or replace?

As a followup to Little/no charging but alternator and battery test good, the battery is only charging when the charger has a significant load in parallel with it (e.g. turning the key to the on ...
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1answer
228 views

Battery only charged with higher than 14.7v

My battery is 12V 8AH. 2 weeks ago tomorrow of good start engine I tried to start engine but my motorcycle was scrambling to start and I found that my battery may be damaged. Maybe it is useful to ...
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82 views

Alternator amperage to charge 3 batteries

I have a 2009 accord sedan, with a sound system installed. How many amps should my alternator be to charge my 3 batteries? My OEM alternator currently puts out 130.
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1answer
42 views

Use of diode to charge in-house battery from motorhome solar system

I want to charge in-house battery (Fiat Ducato) from the motorhome solar system. I presume I can use a diode to do this? Can you please advise and what size diode would be necessary. Thank you.
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1answer
56 views

Charging problem

Ducati 450 scrambler 1975 converted to 12v with Luas Rita AB11 electronic ignition it is so easy to start with this modification I put a new original alternator 3 face that gives up to 55v at 5000rpm ...
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1answer
454 views

2002 Subaru Legacy GT - New Alternator, Battery Light Stays On

I recently had to replace my alternator as the one original to the car died after 180k miles. The new unit is a Subaru re-manufactured alternator purchased from the dealership. The original failure ...
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367 views

Dual alternator setup that is separated one alternator and battery runs the truck one alternator and battery runs the audio system

Hey guys I'm JD and I've got a 2008 Chevy Silverado extra cab 4 by 4 flex fuel truck with a 5.3 l vortec I have added a second alternator and second battery!! Separated the way this thing works the ...
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2k views

New alternator whining?

I have a concern about a new alternator I put on my 02 echo, again it too does not have a tensioner. Belt tension is created by pivoting the alternator away from the engine. This was the first time ...
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2answers
112 views

Charge laptop in car lighter

is there a way to safely charge laptop from the lighter? Is the power enough to charge all kinds of laptops? Will this affect the car consumption or battery life in any way?
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1answer
62 views

Charging a 26AH Lithium battery with an idle 140 minute reserve AGM battery?

My truck has a large Bosch 94R800B AGM battery rated 140 minute reserve. I've had a lot of luck using this power. Unrelated, but I have a 1200 watt inverter installed on top that can power a wide ...
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1answer
64 views

Alternator misconnected, what adverse affects

Spent the night and the very early morning in the garage changing the clutch on my wife’s 1997 Mk3 Golf GTI 8V 2.0. She’s called me saying the battery light is staying on. When I’ve thought about it,...
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59 views

Alternator charging light on, turned itself off after about 15 minutes of driving

I just picked up a 98 Explorer XLT that had been sitting unused for about six months. I had to drive it from the SF bay area to Orange county, which is about a 400 mile drive. When I first started the ...
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1answer
274 views

'91 Toyota Celica GTR (ST183) charging diagnosis

I've been working on getting a Celica up and running after a couple years of laying mostly idle, it's been dry-stored for most of it. The biggest issue I have right now is that the system is not ...
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1answer
98 views

2002 Honda CB250 wont turn over after new battery

I recently bought a Honda CB250, and did the 30 minute ride home fine. Then a couple of days later I took it out again and pulled over after about 10 minutes of riding and turned it off. After that I ...
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339 views

2006 Ford Focus always shows battery light after driving for 5 minutes

I have a 2006 Ford Focus. I got new battery and a new alternator two months ago. But it just started showing the battery light on dashboard few days back. The battery light shows always after about 5 ...
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4k views

Intermittent battery light on 2005 Accord

I have a 2005 Accord LX 2.4L w/ 101k miles and a few weeks ago, the battery light came on. The battery was changed last year. After checking everything, I concluded that it was a bad alternator, so I ...
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0answers
67 views

I have a 2003 Oldsmobile allero. Power not getting from battery to alternator

My car is a 2003 Oldsmobile allero. We have put in a new starter, alternator, pulley tensioner, and gone thru 2 batteries. The power is not getting from battery to alternator. They thought the ...
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1answer
61 views

Charging a motorcycle battery with no exposed leads

I am trying to charge this battery with this charger: However The connectors are as such: The battery is 6V, 4Ah The charger operates at 6v, 1A Without an obvious way to connect these im a bit ...
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45 views

20.2 volts on the B+ terminal of a12v alternator.

The engine on my sailboat has an Iskra 12-volt alternator that has worked fine for over 3,000 hours of operation. Just recently, I noticed that the voltmeter shows no charging, ie, only about 12 ...