my battery was dead after roughly 9 years of its manufacturing date (the battery was made in 2014). During covid era and in general, my car was rarely driven and I had the battery completely drain on me many times which I think probably affected its life - but it still lasted me this long. I purchased OEM from local toyota for roughly $300 OTD and just replaced it. Couldnt be more simple. New battery looks like it was manufactuered this year, so happy with that.
BTW purchasing these from a toyota dealer they WILL (at least in southern california) want you to provide a VIN or they will give you a real hard time or not even give you the battery - so just go ready to provide a dummy avalon hybrid VIN or something. the parts are exactly the same with the exact same part number on both toyota and lexus so idk why they make it such a big deal.

They say its to provide the accurate part but their system already lists two diferent batteries, and they have no idea which one is the right one. One for HS, Rav4, etc and one actually for the avalon and ES. Not sure if they are interchangeable but the exact part, as some others have already mentioned in this post, is the 28800-36050.

Good thing about these hybrids is that you can endlessly boost the battery to start the car as it does not need to have a charge once the car starts. So I was driving it for about a week until I could track down a battery using the boost to start the car every time. I obviously wouldnt recommend doing it but it is a work around in an emergency.

 

I bought Exide 24MX for my 2015 ES 300h. It did not come with the elbow. What do I do?
It also has two vent holes. What is the white stuff you used on the elbow and can I seat the second hole with any caulk?
Please advise.

 

Did your order of the 28800-36050 battery come with the vent hole? I'm looking on the Toyota parts website and it doesn't include the venting tube in the diagram for that battery... Strangely, it does exist on battery with part number 28800-28100 (which also looks more like the one you ordered).

Additionally, according to the website, apparently only the 28100 battery fits the 2013 Camry Hybrid but not the 36050 battery. Which should I order?
Is it just a mix-up on the site and I should be good ordering the OEM 36050 from Toyota (listed for the Camry Hybrid) for my 2013 ES 300h?

 

The Panasonic battery came with the vent hole

 

The OEM battery lasts a long time.

My 07 GS450h over 12 years 263k miles + Still running great before totalled by a dear
My 13 ES300H over 11 years 257k miles + Still running great before totalled by Flood

 

Bumping an old thread because I am trying to figure out if the battery in my trunk is getting close to dead and causing my dash cam to not stay on for more than 15 minutes while parked. I have a Viofo A129 Duo hardwired into the car using the hardwire kit. It's set to cut off at 12.2V I believe. I heard that since it's an AGM battery, I could even set the cutoff lower than that at 12.0V.

Other than the dash cam not staying on and recording while parked, I haven't noticed any other issues with the car. 2014 ES300h with approximately 126k miles. I think I also tried charging the battery up with a Noco battery tender a few years ago, so I might try that again.

 

is it really necessary to have park mode for old & high-mileage car ?
I chose to keep it simple & not to go into that "complexity" that might result from hard-wire installation.
My cam is powered by the mirror.

 

It takes 2 mins to hardwire a dashcam and protect yourself from a hit and run

 

So I tried charging the battery up with my Noco Genius 5 and it went from low to full volume in about an hour. Tried turning the car off again to see if the dashcam would go into parking mode but it shut off after 90 seconds which is what it does when it detects low voltage. Took the car to autozone and confirmed it’s a bad battery I’m just wondering how I’ve been able to continue starting up the car for the last 3 years cause this issue started back in 2022 lol. So is the Exide from Rockauto still the go to battery?

I also have a repair/restore mode on the Noco, so I’ll also try that and see if it extends the battery life at all.

 

You can start because the starter motor is powered by the Hybrid traction battery, your regular 12v is only needed to run the electronics when the car is about to start.

That being said as long as you dont have the car in ON and or ON and Accessory Mode you should be ok. In READY is when the car is good to GO in this drive mode the car will know when either the traction battery or 12v is getting low and it will start the engine to charge it up.

The factory OEM agm battery is pretty good and many people had it last more than 12-12 years.

Replacing one with aftermarket wont kill your wallet, and you know its about time Any agm battery is good, even the Walmart Everstart Max

 

I just looked up Walmart and several choices were listed.
https://www.walmart.com/browse?fitme...D&cat_id=91083

 

not sure why you're showing us a page of all sorts of stuff.

 

From the video description:
The owner of this 2019 Lexus ES300h drove 500 miles to end up replacing just the battery that their local Lexus dealership completely missed! The automotive repair parts cannon is very bad. But it is worse when it comes from a dealership. Dealerships usually have factory training, resources and expertise that should enable them to figure our complex problems especially with newer cars. Not in this case unfortunately.

 

To be fair, I think this car probably had a combination of dying battery and flaky ACC ecu. The low voltage during starting should not lock up any ecu. Yes, with the new battery it is not locking up anymore even id the ACC ecu still has a problem. To go as far as calling the dealership incompetent in this case is not right. The CarCareNut is himself wrong multiple times - and even in this case he has only discovered the issue by accident. I also heavily disagree with his recommendation to replace the es300h 12v battery every 5 years. Majority of them easily go for 10+ years.

 

It's an informational page for E300h batteries in a thread entitled "Battery ES300h". Why would you question, a possible solution to a battery hunt?