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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29 views

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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1answer
39 views

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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4answers
56 views

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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46 views

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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60 views

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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38 views

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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54 views

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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14 views

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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816 views

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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1answer
114 views

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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3answers
477 views

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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35 views

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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3answers
2k views

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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27 views

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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1answer
217 views

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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4k views

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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125 views

(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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19 views

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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1answer
604 views

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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54 views

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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2answers
105 views

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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1answer
114 views

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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1answer
172 views

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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1answer
76 views

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 ...
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102 views

Battery drain - 2001 Chevy Malibu

I'm trying to troubleshoot a parasitic battery drain and need help. With all courtesy lights off, key out, doors shut, I show 1.5A of draw. The battery is dead within 24 hrs. I have pulled all fuses ...
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2answers
127 views

How do electric car batteries cope with the car standing idle?

I usually drive low-mileage runs and could easily charge an electric car at home. But what happens when I go on holiday? I charge the car at home, drive to an airport, then leave the car in a car ...
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1answer
207 views

Battery drained 10 amps with key in the dashboard - what can it be?

Old Honda Civic hatchback 1.4i, manual gear, air conditioning. No longer starting (see below the history). I noticed that with the key off or in the dashboard in position I there is a small 40 mA ...
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1answer
513 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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1answer
45 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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1answer
1k 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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1answer
46 views

How to maintain car battery if I'm not going to use it for a while?

I own the Honda Accord 2019 model. I'll be traveling for a month, and won't be using the car. The car batteries may go dead because of this. I read that I can use a trickle charger for such a ...
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1answer
2k 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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1k views

How about how many amps does a vehicle pull at idle

Assuming the lights and stereo are off, how many amps can you expect an idling vehicle to pull? In this particular case I'm wondering about an F350, with flexfuel engine?
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1answer
52 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 ...
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72 views

Trying to Figure all this out before I spend a lot of money

I have a 2008 VW Jetta 2.5L Automatic , Recently the battery was dead and my car would not start. I charged it up and got it to turn over and let it run for about 15 min on its own. and everything ...
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2answers
73 views

Using li-ion battery on motorcycle with existing minimum current draw

I own a Ducati 848 motorcycle which is well known for needing battery tender. Most of the owners of such bikes (along with their bigger brothers 1098) especially since they are not riding them every ...
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2answers
3k views

Car battery at 11.8v in the morning and 12.5v after 20 minute drive bad?

If my group 48/H6 70AH 120RC Led Acid car battery is at 11.8v in the morning and 12.5v after a 20 minute drive is it bad? My van and battery are only 10 months old but I do frequently use the battery ...
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1answer
2k views

Emergency flashers drain the battery in 5-10 minutes

I have a 5yo Honda CRV. Recently I had two episodes when the car did not start after it was left with emergency flashers (hazard lights) on for 5-10(?) minutes. I had to ask someone to jump-start it (...
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5answers
242 views

What can cause a complete battery drain while plugged into charger?

I own an Aston Martin Vantage V8 stationed at Mallorca, which I use when on vacation. Last year, the car had a new high quality battery replacement. The car is plugged into a charger when parked in ...
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1answer
31 views

How to minimize voltage loss

I have a '79 bike that is currently experiencing voltage loss, causing the battery to die after a couple hours of riding. It is clear there is lots of corrosion and rust on many of the wires and ...
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2k views

Sudden battery voltage drop when ignition is on

I'm currently trying to figure out what is wrong with the car, but I'm not sure if a rogue drain somewhere is able to give such symptoms or did the battery just die. The voltage of battery stays at ...
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1answer
42 views

Should I use an “original” electrical harness to avoid problems?

I have a 2017 Subaru Legacy. A month ago U-Haul installed a trailer hitch and electrical kit. I used my 5 by 8 trailer (bought at Tractor Supply) happily for three weeks. Then one day the car did ...
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4answers
37k views

Acceptable battery voltage drop overnight

This is a follow up to this question that I asked previously. Since asking that question, I have kept my same commute, but have been driving consistently 30+ miles on the weekend. In addition, I have ...
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0answers
124 views

2015 Honda Accord Dashboard lights won't turn off after draining the battery

I'm a fairly new driver and I have zero knowledge of cars in general, today I made the mistake of sitting in my car with the ignition on but the motor not running, thus causing the battery to die. ...
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4answers
3k views

Minimum driving miles to keep battery charged (Honda Civic 2015)

I have a 2015 Honda Civic and I got a new battery for it about six months ago. Recently the car hasn't been starting and required jumps every morning to run. I took it to the dealership and they let ...
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17 views

My Scooter is not starting

My Scooter,Activa is not starting. Accidentally I kept my ignition on for 2 days What to do? Please help. Thanks in advance
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12 views

1988 T-Bird clicking sound when key is on

I accidentally drained my battery so I charged it and went to drive it car died when I went to drive. Now it makes a loud clicking noise and won't stay running. I don't think I put a good charge to ...
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57 views

Genesis 2016 battery Problem

Six months ago my car wouldn’t startup in the morning. I replaced the battery by buying a new one from the dealer. Now, the same problem is shown again and dealer replaced the battery for me again. ...
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0answers
30 views

Car won't start, only 3 years old

My '16 Dart SXT for the past month won't start without needing a jump if it sits for a day without being used. Starter is fine, thought it was the battery so bought a new one and less then a week ...
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1answer
128 views

12v starter battery True amps available why volts come back so fast by running engine 5 mintues?

The OEM start battery on my new van is 70AH, 120RC. I have a 12v freezer that consumes about 3amps @ 12v. It takes the freezer about 6 hours to freeze a gallon of water. My battery is not a deep ...