19 Santa Fe 2.0t dead battery 3 times couple months apart each time. It has only 5k miles. Has anyone had experience that?
2019 Santa Fe dead battery
nuka06
41 - 56 of 56 Posts
I have a 2020 Santa Fe SEL. Yesterday I went out to get in it and the door wouldn't open. The key fob had no effect - I knew the car battery was dead. Opened up the drivers door with the physical key and popped the hood - battery measured 3.8 volts.
With Covid 19 and the cold snowy weather we hadn't used the vehicle in 2 weeks. I could have kicked myself for not coming out and starting it every couple of days in the frigid weather. I put my battery minder on it and began charging it. 5 hours later it was up to 11.9 volts. Started it and let it run for 30 minutes, shut it off and battery read 12.4 volts. Put the battery minder on it overnight and the battery showed a full charge this morning.
It was my own fault for not starting the car in that time. Modern cars put a lot of drain on the cars battery system especially ones with modems and internet features. I've learned my lesson about not starting the vehicles up over an extended time-actually I had already learned that lesson just forgot to do it.
One additional item I am now doing is putting all our smart keys in a small metal box and keeping the lid closed on the box. We keep the keys in the Kitchen which is less than 10 feet from the garage and I thought the keys being that close to the cars and people continually going in and out of the garage could cause the cars to constantly be interacting with the smart keys putting an additional drain on the battery. That won't happen anymore!
Also ordered one of these. We have a couple of young drivers in the house and it is a great backup for them to carry in the glove box
With Covid 19 and the cold snowy weather we hadn't used the vehicle in 2 weeks. I could have kicked myself for not coming out and starting it every couple of days in the frigid weather. I put my battery minder on it and began charging it. 5 hours later it was up to 11.9 volts. Started it and let it run for 30 minutes, shut it off and battery read 12.4 volts. Put the battery minder on it overnight and the battery showed a full charge this morning.
It was my own fault for not starting the car in that time. Modern cars put a lot of drain on the cars battery system especially ones with modems and internet features. I've learned my lesson about not starting the vehicles up over an extended time-actually I had already learned that lesson just forgot to do it.
One additional item I am now doing is putting all our smart keys in a small metal box and keeping the lid closed on the box. We keep the keys in the Kitchen which is less than 10 feet from the garage and I thought the keys being that close to the cars and people continually going in and out of the garage could cause the cars to constantly be interacting with the smart keys putting an additional drain on the battery. That won't happen anymore!
Also ordered one of these. We have a couple of young drivers in the house and it is a great backup for them to carry in the glove box
I think you may want to get your battery checked at the dealer to see if you have a bad battery or something may be draining your battery. It shouldn't be dead in two weeks of no use.
Agreed.........
Thought I would follow up on my post #41:
Here is my new NOCOBOOST PLUS GB40 - Wonderful product it will hold it charge and boost a car for 2 years. Can also be used to charge any electronic equipment that has a usb charge option. It is 12v 1000 A and you can see how small it is. Will store in the rear of the Santa Fe in the under floor storage of the Cargo area. It seems someone at church or somewhere is always needing a jump and this will also provide a wonderful way to help them
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Here is a BatteryMINDer charger that will bring a discharged battery back to life. It is not only a 'smart charger' but provides a desulfating of the battery. I cost me $35.
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I used it to charge up my battery that had discharged to 3.5 volts through non use of vehicle in freezing weather.
Battery now hold a consistent 12.8 volts. Its current draw with the keys in a metal box is 31 ma and its cold cranking level is 800 cca
Here is my new NOCOBOOST PLUS GB40 - Wonderful product it will hold it charge and boost a car for 2 years. Can also be used to charge any electronic equipment that has a usb charge option. It is 12v 1000 A and you can see how small it is. Will store in the rear of the Santa Fe in the under floor storage of the Cargo area. It seems someone at church or somewhere is always needing a jump and this will also provide a wonderful way to help them
Here is a BatteryMINDer charger that will bring a discharged battery back to life. It is not only a 'smart charger' but provides a desulfating of the battery. I cost me $35.
I used it to charge up my battery that had discharged to 3.5 volts through non use of vehicle in freezing weather.
Battery now hold a consistent 12.8 volts. Its current draw with the keys in a metal box is 31 ma and its cold cranking level is 800 cca
Additional follow up on Post #41 and Post#44
Battery continues to perform excellently. The battery minder did a great job.
I am monitoring our battery to make sure there are no problems with it.
Putting all the key fobs in the tin box and putting the top on has been a real key to preventing car battery drawdown.
Our keys being less than 10 foot from the garage and in constant contact with the vehicle was putting unnecessary current draw on the battery
Battery continues to perform excellently. The battery minder did a great job.
I am monitoring our battery to make sure there are no problems with it.
Putting all the key fobs in the tin box and putting the top on has been a real key to preventing car battery drawdown.
Our keys being less than 10 foot from the garage and in constant contact with the vehicle was putting unnecessary current draw on the battery
That's interesting. I never considered how this little bit of techno-wizardry may bother the car battery. Although my keys live quite a distance from my car, I checked it anyway. My key has to be within 5' of any door handle before they begin talking. Thanks for bringing this up.
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1,099 Posts
In a couple sentences, please explain how this product works / hooks up?
NOCO Boost Plus GB40 Jump Starter 1000A 12V – For Cars, SUVs, Trucks, & Motorcycles Portable Emergency Battery Booster Jump Box With Power Bank
The NOCO Boost Plus GB40 is a compact and portable 12V lithium jump starter that delivers 1000A of starting power to safely jump start dead batteries in seconds. Ideal for cars, trucks, SUVs, vans, pickup trucks, motorcycles, ATVs, boats, and more, it provides up to 20 jump starts on a single...
Back again for the 6th time with dead battery. I took my multi meter tool to it before it got towed on Monday and it was at 5 V. So like I said this will be the sixth time getting towed and third time they replaced the battery it was back for a fourth time one week after replacing the battery. Now they replace the alternator took my multimedia tool to it and it is reading correctly so we shall see………
I have 2 - 2022 Santa FE limited. I started having dead battery problems with both after 1 year. Dealer found nothing wrong on my first visit. Second time I came in with photo documentation of the daily battery drain. They replace the battery and said I had a parasitic drain but would need to leave the car a few days so they can see what is causing it. It was a module that was not shutting down and dealer repaired the problem. Now I have to go through same with my other 2022 Santa FE so believe this is a problem effecting many newer Santa FE's. My dealer is so busy it takes a month to get in and they never have loaner cars which one is entitled to for warranty repairs. I was told by my dealer that a car with a newer, fully charged battery could sit for up to a month and still start up. So if your battery keeps dying in few days or week like me, get it to the dealership and have daily written or photo documentation of the problem.
I have a 2019 Ultimate with 2.4 GDI. Currently at 28K miles. That's under 4.4K mi/yr. Low because we are both retired and have another car that does a lot of the "errands" around town (San Diego).
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