Questions tagged [battery-drain]
A loss of electrochemical potential between positive and negative terminals a car's battery, creating a loss of power, sometimes to the point of being unable to start the vehicle.
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Battery drained in overnight
My new car bedtime t99 battery got drained in overnight now no display all dead, I tried jump start but shows svs light what is it major problem
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Car battery fried after 2 1/2 months
I replaced my car battery for my Corolla in mid March. Last week it was completely fried. I went to start it and it had zero juice. AAA came and jump started it with their battery pack starter. I left ...
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What would cause battery level to suddenly drop about a day after it was driven?
Every few months we have an issue where the battery in my 2006 Audi Avant dies. I've taken it to a battery place and they say that it's perfectly healthy. So I bought a BLE battery monitor and now I'm ...
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Should 7.5A "Air Con" circuit draw amps while vehicle is off?
I believe that my truck (1999 Nissan Frontier SE 3.6L) has a parasitic draw issue.
Was going through the fuse box checking voltage, the "Audio" 15A circuit had full voltage, which I believe ...
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Battery drains in daily use
my car battery goes flat weekly, even though my alternator output is constant 14.3 Volts. The battery voltage does not drop during the night, however, it decreased significantly by afternoon, as if ...
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How much does disconnected new car battery lose charge over a day?
I have a new five-month old (yes months) battery that is not keeping charge. I disconnected and charged the battery overnight using a trickle charger. I got the bad battery indicator on the charger. ...
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What is the typical battery power consumption of a parked car?
My car (2014 Opel Zafira-B) has some weird electrical issues where it randomly and suddenly drains the battery, sometimes while driving. While diagnosing the issue I also measured the power drain when ...
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Car wont start even though battery charger says it is fully charged
I have a 2010 ford focus ran and drove just fine 2 days ago, i went out to start it today and nothing. There were no dash or internal lights on at all when i turned the key still nothing no noise at ...
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Radiator cap, / coolant flange and batter drainage issues
I wanted to enquire regarding some work that my mechanic carried out recently. All issues appear to be resolved now but I need to assess what happened at each stage. Apologies in advance for the long ...
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Will OBD2 Hud Head Up Display drain car battery if left plugged when car is off?
I am buying a HUD Head Up Display. It goes in Sleep Mode when ignition is off (screen turns off). I asked the manufacturer, they said it uses 0.3mAh when in Sleep Mode (400mA while in use).
Is this ...
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Toyota Tacoma 2006 battery drains when started but returns to 11.8V when not running
2006 Tacoma 6-cyl 4x4, and the battery is 3 years old. Truck would not start this morning, so I checked the voltage - 11.8V. When I cracked the ignition, it just clicked. To me that usually means a ...
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Micra K12 Start/Electrical Issues
My partner's Micra SE (2006) has had starting/electrical issues for a while now. Multiple mechanics have diagnosed bad batteries and replaced with the problem returning within days/weeks of the ...
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How to get a rough approximation of how long it would take to discharge battery almost fully when keep ignition on?
I want to do a simple 'test' to see if my motorcycle battery is draining too fast. I've heard that if you keep motorcycle ignition on over night, it will drain. But I could not find any single source ...
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Battery drawdown
I have a 2014 dodge ram. The battery goes dead after a few days of not driving. Replaced battery twice. Checked for draw down and found a 2.3 Amp draw down. My radio had stopped working a couple ...
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How can I diagnose the cause of a flat battery?
Two days ago I could not start my car. The battery seemed flat.
I seldom use my car and when I use it I only drive short distances.
I carried the battery home and charged it with a smart charger. ...
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Battery dead after track day but everything working
Car: BMW M3 (2006)
I went to a track day (HPDE event where I drove the car on a road course at its limit for the entire day) and at the end of the day the car wasn’t cranking. I push-started it and ...
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Nearly drained battery for 2 weeks - how much damage was done?
I recently made a mistake of starting my car, and only driving it for a short trip multiple times in below-freezing weather without letting the car fully warm up. This was after the car had sat for ...
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Changed out radio and getting battery discharge error when engine running
So today changed out my Kia radio that was in my Kia Forte 2020. Seems my country brought in the low spec model at the time.
This is the old radio:
I changed it out to the touch screen that usually ...
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Why is my Volvo XC60 Battery discharging to 6V when parked for 2 days (dead flat)
I have a 2014 Volvo XC60. A mechanic recently replaced the (main) battery with a (non-Volvo) Century battery (AGM-type 12v lead acid, 70Ah).
I parked the car in the garage for 2 days and the battery ...
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Car horn's relay always in switched on position;could it be the reason for total battery drainage if car is not started for 2 days
(MG Hector plus petrol automatic-1 year old). My car's battery was suddenly getting drained in just 2 days of not using the car. This happened twice. I took the car to the service centre and they said ...
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Battery implication to keep doors open while engine is off
Can there be significant battery draw if I keep the doors open while the engine is turned off?
In my case I park a minivan (Town&Country 2016, although I'm asking more in general, not specific to ...
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Lithium vs lead-acid motorcycle batteries: which lasts longer in the winter? Lower capacity vs lower discharge rate?
My question
I would like to understand a bit better the pros and cons of lithium vs lead-acid 12v batteries for a motorcycle, especially during the winter.
Yes, I know, google is your friend, and I ...
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Two day old car battery voltage is reading 3.6v
Purchased a brand new vehicle on Saturday, drove it around 60 miles total (so, plenty of time to charge a low battery) and this morning it was dead. I checked with two multimeters because I didn't ...
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Mazda 6 2014 sport
The last week in a half my Mazda 6 has been having issues with starting at first you could hear it would have a tough time starting like there was not enough power going to the car to get it going but ...
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Brand new battery sitting for 3 months, doesn't hold charge anymore
I have a 2017 Toyota Yaris Hatchback. The car had some cranking issues. I did a cranking voltage drop test (dropping to min 7v when cracking), it seemed like the battery was done. I replaced the ...
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Car Battery left sitting over winter, wont hold a charge
2009 toyota matrix has not been driven regularly since 2019 when it got a new battery. Since then we have removed the battery and stored it indoors (not on a trickle charger) for winter then in the ...
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2003 Honda Civic EX won't start
I have a 2003 Honda Civic EX and it won't start if you disconnect the battery negative then positive let it sit for a couple minutes then reconnect it positive and negative you get all the lights back ...
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Car alarm - parasitic drain and ringing?
I have a Honda Prelude 1998 with the following symptoms:
keep the fully charged battery connected for 2-3 days without driving and it goes almost flat (disconnect it and the charge stays for weeks at ...
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Vehicle dies for a couple minutes when I try to start then turns back on
I have an 02 Chevy Trailblazer
I went to start my vehicle up like normal before work. When it was in accessory it was fine but when I tried to turn it over, it all went black. There was no power at ...
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Battery drain but multi meter shows it doesn't
I have a Honda Prelude 1998 and if the battery is connected (with car off), after 2 days it is mostly drained. If I recharge it and disconnect the battery, it has a good charge even after 10 days (I ...
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Car that I drive regularly has flat battery, bad alternator?
A car that I pretty regularly drive everyday has just had it's battery run flat.
I had just got back from a 30 minute drive and 10 minutes later tried to turn it on and it just kept cranking like a ...
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What causes car battery to hold only 5v?
One of my cars was parked for a few months and it couldn't start after that. I could jump start the car and gave it some good drives (2hrs in total) to recharge the battery. However, that didn't help ...
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parasitic battery drain on my 98 jeep cherokee
I have an amp draw of .85 tested from my negative battery cable on one lead and the neg. post on the other lead of my multimeter, I have removed every single fuse and relay and unplugged every single ...
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Hyundai battery drain
My car battery drain i checked all the fuses with series connection of ammeter in battery negative always showing 0.85A what is the reason can any one please tell me. My car is HYNDAI I20 Magna 2012 ...
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Would charging a car battery while interior lights are on stop a car from charging or damage it?
Could charging a fairly modern car with lights on (or any other electronics on) damage it? My car battery drained to a voltage of 5.5V (very low I know) because I left the interior light on for 2 days....
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Mitsubishi Outlander Parasitic Draw
I have a parasitic draw of 280 milliamps with everything turned off and my key fob 15 feet away from the vehicle. I latched the hood latch just in case there is a sensor in it.
I pulled all fuses ...
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Battery voltage drops from 12.3V to 11.2V in 5mins
I was in my car, while snowing, with the radio and the heating turned on but the engine off.
I checked the battery's voltage, which dropped from 12.3V to 11.2V in 5mins.
Is this behavior normal, or ...
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Car won't start if the battery has been on for ~5 minutes
I have a 2006 Honda Accord, and my car battery is not too old (1-2 years). The car starts fine, I don't normally have issues with it. However if I turn off my engine and sit in my car with the battery ...
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How long will battery last if disconnected at full charge during winter?
My car won't be driven during the winter, so from about November through March (5 months) it will sit idle. If I disconnect the negative terminal on the car battery when it's at full charge, should I ...
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Car battery drainage
I own a 2007 Ford Focus SE 2.0
My question is would you happen to know the reason why my battery (which is brand new) is always dead. I constantly have to disconnect the battery in order to be able to ...
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2019 Kia Forte has a dead battery
I tried to start my car and got nothing, the battery was reading 11.4 volts, so I waited until some people woke up to show them what it was doing, when I tried again. This is when I noticed it ...
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Battery drops to 10.5 volts after charging
A few days ago, my 97 Corolla had trouble starting. It cranks but doesn't start, maybe due to a problem with the carburetor. Figured I might discharge the battery, so I stopped my attempts at starting....
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(VW CC 2010 2.0L Sport) How do you diagnose a parasitic battery drain from a fuse that controls rear window raisers and central locking system?
My 2010 VW CC is having a parasitic drain issue and I've isolated the problem to one of the fuses which is for the rear window raisers and for the central locking system. If I keep this fuse out ...
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New battery going dead
Bought a new battery for my truck it's a 1993 Chevy 3500. The battery tested good after two weeks it was dead. Every time I get into drive it I have to jump the battery. took it to a mechanic ...
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Brand new lead acid car battery reads only 12.33v. Is it faulty?
Yesterday I purchased a brand new, maintenance-free, 12 volt lead acid car battery. Specs: 47Ah and 450CCA.
Before I install it in my car, I measured the voltage with a catIII digital multimeter. It ...
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Older cars draining battery faster
I have vw golf 2004 that needs its battery replaced. The battery is four years old. The battery the car got when it was new lasted 8 years. My dad said as the car gets older it ruins the battery ...
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Car battery won't hold a charge: can one estimate how much longer it will last? Or is it best to replace it?
I have a 12V 60Ah EFB battery in a 3-year old start/stop car.
The battery doesn't seem to hold a charge. Is there any way to estimate / understand how much longer it can last, or if it's best to ...
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EFB (enhanced flooded battery) I left the lights on for more than a week because of Coronavirus
I have a Renault captur 2016 vehicle with start and stop capability, the battery is EFB 70Ah 720A, I couldn't start the engine with cables connected to another standard battery of another running ...
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What is normal 12v battery current drain in run position with engine off?
My 2002 Honda Odyssey has a weak battery. It is at the end of its expected life and I will be replacing as soon as I can.
The ignition switch has the following positions:
0 - Off
I - Accessories
II ...
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Jumping a car and attaching cables after starting donor car's engine
I was jumping my friend's car today in a place with no cell phone reception.
He argued that the jumper cables should be attached after starting the donor car's engine. He said that it would decrease ...
