The earlier years like 2019 and 2020 had software issues that were resolved that did drain the battery and numerous 2019 batteries had to be replaced. I have at least disconnected my battery 7 times in last 4 years some as long as 3 weeks for going on a trip without trying to retain memory. In my experience there was only 1 setting I had to reset. I can see if reinitializing the ecu for the back up camera and steering wheel is not straight that may or may not cause a problem. I am under the camp of thinking resetting computer systems is not a bad thing and actually healthy. Even phone manufacturers recommended restarting phones once per week. I still have my LS430 UL after over 20 years and it has a terrible memory problem remembering driver habits so every few months I do take battery cable off and there back then I do loose memory. All of this is my opinion and experience only and wide open to anything contrary.

 

Don't recall all the details of problems. Some problems mentioned are windows not working, navigation system flashing.

 

Don't recall all the details of problems. Some problems mentioned are windows not working, navigation system flashing.

 

Does any owner of a 2019 lexus es350 still have the battery that came with the car, i mean a new car? The battery. In my car is 380LN3-MF. Am not able to find the LxWxH for this battery type? I think group size 48 or H6 may be the equivalent in any othet brand.

 

I have a 2019 ES Ultra Lux 350. Original battery. What do you want to know?

Check this out... https://www.autozone.com/batteries-s...arging/battery

 

Is your battery same as mine-380ln3-mf or does it say lexus. Mine was made by johnson controls. So, your battery is also about 4.5 years old. Are there any indications that the battery is getting weak? Mine is ok voltage and cca wise. Wondering if changing it now may be premature?

 

I purchased my 2019 in December 2018 so the battery is actually going into it's 6th. year. I use my car 3-4 times a week as I have 2 others. I don't see any issues with my battery at all. It does say "Lexus" on the battery with the same numbers and letters as yours 380LN3 - MF. I sold a 2013 ES and the battery was 6 years old with no issues. It's really the luck of the draw as they say. Wife's Honda lasted 3 years and required replacement. Had a 1966 Corvette and the battery lasted 9 years... I also have a 1998 Corvette with a 6 year old battery. I totally understand your cautious approach to not getting stranded with a dead battery. It's all your choice and decision my friend. GOOD LUCK!

 

Thanks bc: my battery is just over 4 years. The voltage when checked recently was 12.6v and cca was 600 (battery label says 603). My battery is doing fine. I may be able to get 6yrs too. But not betting on it. Will keep checking it. Thought it may be premature to change it now.

 

Mikemu30. I was trying to gauge from owner's experience if some had oem batteries last longer than 4yrs without giving problems. Someone just replied that two of their es350's with the same oem battery as mine still good after 6 yrs. So it may be premature to replace mine at a little over 4 yrs. My battery voltage and cca are good. Of course it does't necessarily mean mine may last 6 years.

 

A new battery can also prematurely have a bad cell. To ease peace of mind and maybe go another year if battery checks good is to keep a pair of jumper cables in trunk on top of spare tire or even a jump box but won't fit on top of tire. I know you had the battery tested for voltage and cca but was an hydrometer used for specific gravity of electrolyte which is important for determining battery health. Of course this only works if you can get to the acid. This is a quote from internet: "

4. Read and Test All Cells

With a full bulb of battery electrolyte fluid, read the measured value on the device. Write this value down. Continue onto the next cell. It’s important to take a reading of every cell at the same time before you perform any calculations. The electrolyte temperature plays a role in determining the overall battery life. "

 

Yes. I have a jumper in the car. I saw the technician insert a clear circular device with a stem (looked like lollipop) and saw the electrolyte flowing into the top part. Looked clear. Anyway, will keep an eye on voltage and cca. Do you think using a battery tender would be helpful at this stage? My car doesn't stay in the garage without being driven for a long time.

 

Battery doesn't deserve a thread this long Once it's four years old, you know it MAY be on borrowed time so replace it or roll the dice. Some die sooner than that.

 

Your car with a real alternator to charge the battery should do fine. My hybrid is a different story. They say when you start your vehicle it takes around 10 miles of driving to replenish the battery. A lot of starts and just intown driving the battery will never get fully charged. A battery tender maybe once per month to fully charge your car overnight would probably be healthy for your battery. My hybrid car even on a long trip will not fully charge the 12v battery. I am tech inclined and have reached out to numerous Lexus departments and no one can answer this. I measure my voltage quite often and watch the voltage go down daily and have even seen it at 11.8 volts. I have measured parasitic amperage draw and is normal. I am assuming fully charging will deplete hybrid battery and gas mileage to replenish the hybrid battery and that is what charges the aux battery. I fully charge once/mth. You have done the smart thing by keeping jumper cables in the car.

 

Mike you are right.

 

Want to do a day's reading? Go over to "merged premium fuel" and read 145 posts... Talk about long and repetitive...