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I have a 2019 Ascent with about 4,000 miles on it. Three mornings since buying it last November I have had a dead battery in the morning. Get it jumped off and eveything seems normal. One time found the tailgate open and thought this could have caused it.
I was wondering if anyone else is having this problem ?
 

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Yes, there are a notable amount of battery failures. I would take it to the dealership to have it tested, and replaced under warranty if needed. A lot of folks are replacing their Subaru batteries with aftermarket batteries with a more robust CCA (cold cranking amps) number. Some are buying AGM type batteries (absorbent glass mat) which are superior & longer-lasting (but more expensive, but like anything else can be found on sale). The rear hatch is an electricity vampire if left open even for short periods, and has been the cause for many dead batteries. There is much on this subject as the person above was eluding to if you choose to use the search option above and search battery or dead battery. Good luck.
 

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I have a 2020 with around 2600 miles on it.

I've had 2 episodes of long-cranking, both times the engine did start without any error codes. It wasn't very cold nor had been sitting an extended time either time it happened.

Brought to the dealer today to have them check the battery. It failed their testing, had an "internal" issue. I didn't get more info than that. They replaced it.

The person checking me out asked if I keep it locked. She said that keeping it locked will help prevent battery drain?

Any opinions on that? It lives in a garage at home, so I don't keep it locked. The key fob is at least 20 feet away, through a door.
 

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I have a 2020 with around 2600 miles on it.

I've had 2 episodes of long-cranking, both times the engine did start without any error codes. It wasn't very cold nor had been sitting an extended time either time it happened.

Brought to the dealer today to have them check the battery. It failed their testing, had an "internal" issue. I didn't get more info than that. They replaced it.

The person checking me out asked if I keep it locked. She said that keeping it locked will help prevent battery drain?

Any opinions on that? It lives in a garage at home, so I don't keep it locked. The key fob is at least 20 feet away, through a door.

.... Have you had any more issues with the battery?

I just had to jump start mine (2K miles) after not being used for three days. I don't want to be dealing with battery issues with a new car and would take it back to the dealer ASAP if need be.

Also, I do keep the car unlocked inside the garage and the key is just thru the door in the house (Maybe 8 feet away)

Thanks.

DZ
 

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Cranking the engine started taking longer and longer, and a few times almost seemed like it would not crank, then it would catch. A few times all the lights and icons on the dash were on, and sometimes I'd press the button to stop the engine, and nothing happened. When I took it in for the 6000 mile checkup, they found it had a bad cell in the battery, and replaced it. Dealership said they have replaced a LOT of Ascent batteries...
 

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I took my Ascent to the dealer yesterday. As expected, I had to jump start it because it was completely dead. No lights at all.
It started right away and after driving it for 32 miles to the dealer, the battery fully charged. The dealer tested it and they claim battery is good. However, they found "a slow electrical drain" I think he also called it a "ghost drain"
They kept the car to try to find the problem and I took a loaner.
What are the chances that they come back and said everything is OK? Obviously it is not OK.
We will see.
 

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I took my Ascent to the dealer yesterday. As expected, I had to jump start it because it was completely dead. No lights at all.
It started right away and after driving it for 32 miles to the dealer, the battery fully charged. The dealer tested it and they claim battery is good. However, they found "a slow electrical drain" I think he also called it a "ghost drain"
They kept the car to try to find the problem and I took a loaner.
What are the chances that they come back and said everything is OK? Obviously it is not OK.
We will see.
I am watching the voltage drain on my 2020 Touring with recent replacement Subaru battery, in garage with nothing on (that I know about), perhaps I have a ghost. I charged it and after 3 hours it went from 14.6 to 13.08 VDC, I will check it it again after all night..There has to be something in the vehicle that is draining ALL our batteries, maybe time to call SoA.
 

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I am watching the voltage drain on my 2020 Touring with recent replacement Subaru battery, in garage with nothing on (that I know about), perhaps I have a ghost. I charged it and after 3 hours it went from 14.6 to 13.08 VDC, I will check it it again after all night..There has to be something in the vehicle that is draining ALL our batteries, maybe time to call SoA.
 

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I am watching the voltage drain on my 2020 Touring with recent replacement Subaru battery, in garage with nothing on (that I know about), perhaps I have a ghost. I charged it and after 3 hours it went from 14.6 to 13.08 VDC, I will check it it again after all night..There has to be something in the vehicle that is draining ALL our batteries, maybe time to call SoA.
14.6 is the voltage used to charge the battery, not what a full charge is on these types of batteries. After removing the charge source and letting the battery "rest" it will eventually drop to the normal full charge. 13.08 is still a little high. I suspect if you let the battery rest a bit more it will drop and hold around 12.6 to 12.8'ish volts. That is normal and good. You would see this behavior even if you disconnected the battery from the car (zero load).
 

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After dropping off the car at the dealer, they informed me that my car was drawing lots of voltage coming from the homelink garage door opener. They replaced a module on it and it seems to be working normal now. Although I have not been able to link the homelink to my garage door, as long as it does not kill the battery again, I am sort of OK with it. The battery was not replaced as it did not failed the test.
 

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After dropping off the car at the dealer, they informed me that my car was drawing lots of voltage coming from the homelink garage door opener. They replaced a module on it and it seems to be working normal now. Although I have not been able to link the homelink to my garage door, as long as it does not kill the battery again, I am sort of OK with it. The battery was not replaced as it did not failed the test.
It did however fail A test. Not working as designed to work. Unless you have some strange garage door setup it should not drain the battery too much and you should be able to use it as advertised. Subaru makers the homelink feature and they spec the battery. My guess is that the battery that others have replaced the OEM with would work just fine. If that is true (I do not use Homelink), I would insist SOA pay for that better battery. If with the OEM battery and "Lots of voltage" drained it still gets the job done to start your car, then they are correct.
 

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Just a point of clarification: Subaru does not design or manufacture the Homelink equipment; Homelink comes from Gentex, a supplier of these types of systems to many automakers. I do agree that you should be able to use Homelink without excessive battery drain!
 

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14.6 is the voltage used to charge the battery, not what a full charge is on these types of batteries. After removing the charge source and letting the battery "rest" it will eventually drop to the normal full charge. 13.08 is still a little high. I suspect if you let the battery rest a bit more it will drop and hold around 12.6 to 12.8'ish volts. That is normal and good. You would see this behavior even if you disconnected the battery from the car (zero load).
Good info, we shall see, overnight check reading was 12.99 V, I hope it will level out, I won't be starting it for a week or so. Thank you.....
 

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I have a 2019 Ascent with about 4,000 miles on it. Three mornings since buying it last November I have had a dead battery in the morning. Get it jumped off and eveything seems normal. One time found the tailgate open and thought this could have caused it.
I was wondering if anyone else is having this problem ?
Yes and Yes, I have had two batteries replaced, they finally said it was the battery. I did have my Owlcam connected, to which Olwcam tech said would disconnect when battery reached a certain point. Well, since I have completely disconnected the owlcam, I have had no issues, although the weather has gotten warmer.
 

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2019 Subaru Ascent Touring (Canadian Edition) -- Ice Silver Metallic
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I would replace mine with an AGM battery when it dies. I always regularly maintain my battery with my Noco Genius smart charger even though this is a daily driver.

Low speed stop and go traffic just doesn't rev the alternator enough over time to recharge my battery.

Here's an article on battery maintenance, applicable for any auto manufacturer with so much electronics and sensors today:


By topping up regularly, my 2008 Impreza, OEM battery wasn't replaced until 2015 or so. Only did that because it was getting weak for winter startups.

So I got better battery performance from even a store brand AGM (Canadian Tire). I noticed my winter cranking times are shorter than the the flooded batteries.
 
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