Motor Vehicle Maintenance & Repair Stack Exchange
Motor Vehicle Maintenance & Repair Stack Exchange

Questions tagged [battery-charger]

Device used to recharge a drained or dead battery.

Image of a battery charger

enter image description here

95 questions
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5 answers

Factors Limiting EV Battery Acceptance Rate on DC Fast Chargers

There is a bunch of, relatively speaking, inexpensive EVs with 200-250 mile (320-400 kM) range -- e.g., the Kia Niro, Subaru Solterra, Volvo C40, and late model Nissan Leafs. All, in my experience have enough range for day-to-day use (40 mile daily…
dlu
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13
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3 answers

Charging battery with battery charger vs jump starting and running the car

Got a 1998 Toyota Camry that has an empty battery and am wondering what the best course of action is. I have a battery charger that I am thinking of using but it's currently inconvenient to do. My question is: If I just jump start the car and run it…
Vehicular IT
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11
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8 answers

Can one slightly charge a dead car battery with a portable battery jump kit?

The other week, my friend was trying to jump start a friend's very dead car battery with one of the portable power bank car jump starter kits. It looked something like the below: Image source If I were to have been jumping the dead car with…
Intrastellar Explorer
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10
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5 answers

Solar Charging Car Battery through Cigarette Lighter Outlet?

My vehicle's cigarette lighter outlet is limited to 10 amps output. If charging were limited to less than 10 amps, would solar panel -> charge controller -> cigarette lighter outlet work for charging a car battery. Additionally, would running loads…
Greta
10
votes
1 answer

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 14.1 volts while it's connected. Does this have…
Alex
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9
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1 answer

Car battery dead for a while... now it won't charge?

So, my car battery died 4 months ago while it was unused in my garage during the summer (interior dome light left on for months). I went to jump start it this morning, ran it 20km ( 30 minutes ) to work and after turning it off, the battery is 100%…
Trogdoriffic
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3 answers

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 unnecessary wear on the alternator, so it is best to…
Daryl Smith
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6 answers

Can I charge a 12V car battery with a 16V 1.5A adapter?

Hello it's my first time here and I will try to address the issue as best as I can. I left my keys in the ignition a few days back and hence my battery drained itself. It is a 12V maintainence-free battery and I want to charge it enough for just one…
Ankan Biswas
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8
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1 answer

Battery maintainer vs trickle charger

I understand battery maintainers, like those offered under the Battery Tender® brand, 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…
MooseLucifer
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9 answers

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 terminals, and it shows 2 volts. This battery is…
Nick
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How to tell what type of battery my car has?

I want to use the force charge mode on my Noco Genius 1 and I'm supposed to select the battery type. Options are: 12V = 12-volt Wet Cell, Gel Cell, Enhanced Flooded, Maintenance-Free and Calcium batteries 12V AGM = 12-volt AGM batteries 12V Lithium…
sushi
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12V Battery change

4 weeks ago I changed a 12V battery on my Toyota Prius auto. But after being in for two weeks the battery was discharged again. I tried to recharge it, but it did not work - the charger does not start charging - though the battery voltage was 0.1 V.…
Oleg
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7
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Car battery won't charge above 50%

I had a problem starting my car after not driving it for two weeks. After charging the battery with a CTEK trickle charger via the cigarette lighter socket, the car started fine. I had my car battery tested at a couple of garages and they said the…
SilverlightFox
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6 answers

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 alternator can charge it too, but is this going to…
Kris
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how do i know if my lead-acid battery has been resurrected?

The OEM battery in my 2008 Jetta SE 2.5L has been nearly fully discharged one month back (had insufficient surface charge after a prolonged use without the engine running, but leaving it idle for 20 minutes made the car start again), then worked…
cnst
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