Car battery keeps dying even after replacing battery and alternator

“Started noticing car didn’t want start but jumped easily.”source ↗

“Within 48 hours of replacement battery needed to be jumped again”source ↗

“Within 24 hours of alternator replacement battery needed to be jumped again.”source ↗

“Started to notice that battery would be zapped within SECONDS if battery neg cable was not removed quickly enough after being driven and turned off.”source ↗

“I’ve replaced the alternator, battery and even the battery sensor which when I got a diagnostic done they said they didn’t see anything wrong besides the sensor.”source ↗

“What could possibly be killing my battery in a week? Not even a week, 5 days!!! Any ideas? Again, new battery installed 9/27 and was dead on 10/2.”source ↗

“My son bought a car with an alarm and all was ok when it was a daily driver. But if he parked it for a few days, the battery would die.”source ↗

“Then she says but that one was dead the next day we went to move it. Ok...so now my vehicle has been towed back (it died in my garage before I could leave for work the next day) had additional diagnostics run by the shop and then again by their calibration company and blew several fuses in their equipment and no cause could be determined.”source ↗

“S.F. won't pay for any more diagnostics as they can't confirm its crash related (drain began the week after the accident before I could get it into the shop).”source ↗

“I have now switched 3 batteries in the last 1 year and they all keep dying on my 2015 Honda civic.”source ↗

“Currently my month old battery won't crank the car.”source ↗

“After market: a charger cable, Everything looks tight Will have to get a multi meter, don't have one”source ↗

“A few weeks later, the start/stop system stopped working and the car began to need a jump every single day unless I drove it far.”source ↗

“The car was fine for a few days, then it lost the start/stop function again.”source ↗

“I want to get this fixed but I've phoned two garages and neither want to touch it stating electrical issues.”source ↗

“Something is draining my battery.”source ↗

“But the battery shouldn't completely die (to where it won't even take a charge) as often as it does.”source ↗

“My jeep is having electrical issues and keeps draining the battery .”source ↗

“Then when it begins to die, a rapid clicking noise begins until the battery is fully dead.”source ↗

“I replaced the battery twice in the last month. It still does this”source ↗

“So about a month ago. My 09 Mitsubishi Eclipse started experiencing a parasitic draw. It would drain my battery overnight.”source ↗

“Now, the car is acting like battery is dead even though I bought a brand new one. It won't even acknowledge that the key has been put in the ignition.”source ↗

“He's at a loss. I'm at a loss. And every other mechanic I've talked to has no idea what's going on.”source ↗

“I can't take it to a shop because I'm broke. My car is how I make money. And without a working car. I can't go to work. Which means I can't pay to get it fixed.”source ↗

“Its got new battery in it but throws "turn on engine to charge 12v" if i havent driven for a few days.”source ↗

“I’m dying here. And so has my battery recently.”source ↗

“Had my aftermarket radio uninstalled but it’s still making crazy noises”source ↗

“So in the past 2 days ive had 3 batteries go bad on me.”source ↗

“I should mention that its testing bad with it unhooked”source ↗

“Fwiw all the batteries tested bad unhooked”source ↗

“that brake light keeps flashing when I turn off the car and leave it outside. It’s been killing my battery every morning so I’ve been having to jump start it every morning and need a fix.”source ↗

“battery light won’t go away and battery can’t stay charged and this started after mechanic installed the starter”source ↗

“trying to diagnose a car for 3 weeks replace parts while the problem still occurs and on top the shop can’t diagnose nothing”source ↗

“my battery is 3 days old as parasitic drain I just tested to see if my battery can keep charged and it can’t and alternator passed twice”source ↗

“Monday morning it wouldn't start.”source ↗

“Next morning, dead again.”source ↗

“So my dads 2009 camry died a few days ago.”source ↗

“what might be going on?”source ↗

“I'm sick and tired of my cars electrical problems, and I think I finally found the issue.”source ↗

“will pulling the fuse to my radio until I can fix the issue properly stop the drain (if it's even that), and, is it safe to drive without the fuse in my car.”source ↗

“Initially I thought it was the subwoofer which (was generously) included with the car. When I disconnected it, I also bought a new battery & life was good for a tiny bit.”source ↗

“I’ve taken it to three separate mechanics and no one can figure out what’s wrong. Changed new battery and within a month it drained it. Got a new one under warranty and now it’s not turning on again. The car factory resets every so often.”source ↗

“My 2011 Camry has a battery less than a year old, but if the car sits for about 24 hours it's dead.”source ↗

“I have a 1990 Pontiac Grand Prix 3.1 V6. The first battery that shorted out was an ACDelco Silver series. It was only about a year old and then shorted out and will not take or hold charge in or out of the car.”source ↗

“The voltage gauge goes to about 10 when you turn the key on then drops below 8 as the starter tries to turn the engine over.”source ↗

“The thing that gets me is that the SuperStart was above 14 volts in the truck I took it out of. I put it in the car and was below 8 the next day. Put it on the charger, it shows 14 and full charge. One of them has to be lying.”source ↗

“I’ve got a 2006 Audi A6 with some sort of intermittent battery draw. Details: for the past 5 months or so the battery occasionally completely discharges on its own while parked with the engine off”source ↗

“They had the car for nearly two months, during that time the battery discharged ~6 times, but they were never able to catch it while it was happening.”source ↗

“that intermittent stuff is the worst to track down. my old car did something similar and it turned out to be the alternator diode leaking current randomly. would test fine most of the time then just decide to drain the battery overnight”source ↗

“When I went to start it so I could finally take it to get its emissions test completed, the battery was COMPLETELY dead again.”source ↗

“What should I have tested FIRST before spending money on another battery or alternator?”source ↗

“I NEED to get this figured out without throwing money at random parts.”source ↗

“Ever since the screen was taken out, I have had consistent issues with brand new batteries dying (I get dash lights and hear it trying to turn, but won’t fully turn over).”source ↗

“At this point I’m confused because the screen is completely unplugged due to not having time to schedule with ford and I was worried that it was the culprit drawing the power.”source ↗

“Hey everyone, I’m dealing with a parasitic battery drain on my 2007 Chevy Tahoe Z71 5.3L. The battery keeps dying after sitting for a day or two.”source ↗

“So basically, I started with a 550mA draw, managed to bring it down to 120mA, but can’t figure out what’s causing the remaining draw.”source ↗

“I had a draw in my vehicle. Aftermarket stereo installed by previous owner. First thing I did was disconnect the big amp cable from the battery. Still died overnight.”source ↗