Idling would imply engine running. So if engine is not running, then it is on accessory mode? Were any electronics on in the car, e.g. radio head unit? If yes, to me this seems normal for 12V battery to fully discharge after an hour of accessory with radio, etc. on. After 2 full discharges of the 12V battery, it will likely sulphate and you will need a new one, if not immediately, then soon...

 

Very informative, yeah the radio was on. Thanks, I will see to getting a new one

 

And stop doing what you have been doing.

 

If the engine isn’t running, it isn’t idling. Do not unnecessarily run accessories without the engine running. Your starting battery was never intended for that

 

On a related note ,I find it very annoying you can't bypass the auto shut off in accessory

There's far too many idiot safeguards anymore

And yes I've tried parking in neutral, which does work on my mazda3

It would take 6 hours listening to radio to kill a battery

I can watch the voltage on my r8 ,when Toyota decides it's too long ,it's still 12.1 volts

I don't think it's a v reading at all ,it's just a random amount of time they chose

And I'm stuck with

Cuz insurance and aaa crying

 

My car won't even let me do that for extended periods. Once I had the accessory position on for just a few minutes (radio on only) and the car put up a message saying it was powering down to conserve the battery. 🤷‍♂️

 

Yeah, in accessory position, but you didn't do it with the ignition on like soopadook.

 

Meh, what did you expect with these cars? The battery is only like 360cca.

Even though my 2024 car will be under warranty for quite some time I intend to replace battery pretty soon. Likely a 650+CCA AGM. The time and hassle of getting a jump start is worth more than the cost of a new battery out of my pocket.

 

The battery is only like 360cca.

Why it is so low?

This is mine

 

Tobe fair to the battery sitting with the ignition on for an hour would stress a lot of batteries.....save a deep cycle marine type maybe

 

That's right. My original GS Yuasa 360CCA battery made in China weighed only 32.9 lbs. Replacement DTR 650CCA H5 battery weighs 35.6 lbs.

 

CCA =/= capacity

Installing an AGM battery isn't a bad idea. But I would research if the charger can be optimized for AGM.

 

I'm still unsure about AGM for my Corolla. I know very little about them and have read that some cars are lacking the "charging protocol" for AGM. But, then again, there are quite a few people who have installed them in Toyotas.
I still have a few months to make a decision and will do further research.

 

I'm still unsure about AGM for my Corolla. I know very little about them and have read that some cars are lacking the "charging protocol" for AGM

You should monitor what voltage your alternator provides. AGM seem to charge at lower voltage.

AGMs require over 14V from the alternator to charge sufficiently and give a 3 to 5 year minimum battery life. There are different Denso alternators in Toyotas and also the ECM programming that controls the alternator is different in various years and models. On many recent Toyotas (especially with auto start/stop function) the Denso alternator will provide a continuous 14.2 V which is OK for an AGM. On some earlier years and models (Tacoma, Sienna) the alternators only provided a maximum output of 13.65V and the charging rate varied and floated with RPMs, temperature and accessory load. Battery replacement in recent Toyotas requires NO "registration" or changes in any Techstream battery related settings...unless you replace an OEM EFB with a traditional, old fashioned flooded lead/acid. Then you do need to change the "dedicated" battery setting to "other."

 

My J-spec 2019 Hatch manual does always charge at 14.1~14.2V.

 

H5 $159.84

EverStart Maxx Lead Acid Automotive Battery, Group Size H5 / LN2 / 47 12 Volt, 650 CCA - Walmart.com

AGM H5 $179.84

EverStart Platinum BOXED AGM Automotive Battery, Group Size H5 / LN2 / 47 12 Volt, 680 CCA - Walmart.com

 

H5 $159.84
View attachment 454197
EverStart Maxx Lead Acid Automotive Battery, Group Size H5 / LN2 / 47 12 Volt, 650 CCA - Walmart.com

AGM H5 $179.84
View attachment 454198
EverStart Platinum BOXED AGM Automotive Battery, Group Size H5 / LN2 / 47 12 Volt, 680 CCA - Walmart.com

You nailed it. I've always had extremely good luck with Walmart batteries and in my experience their warranty procedure, should anything go wrong, is stupid simple.
The $20 difference between the two you posted would seem to make it a no-brainer to go with AGM.

 

yeah that's my 2022 6MT HB, I'm jealous of your LN2 it just seems to make more sense!
I find it strange the HB changed to LN1 at some point, I think in 2022 actually but could have been sooner

Looks like the smaller LN1/H4/140R battery tray came out in 2022. My 2019 6MT HB has the larger LN2/H5/47 battery tray.

2019-2021 H5 Battery Tray - Toyota part # 7440412560

2019 Toyota Corolla SE Hatchback 2.0L M/T Battery Tray - 7440412560 | Toyota Parts Direct, London ON

USA built H5 Battery Tray - Toyota part # 7440412580

7440402580 - Toyota Battery Tray | Toyota Parts Direct, London ON

2022-2024 H4 Battery Tray - Toyota part # 7440412600

2022 Toyota Corolla S Hatchback 2.0L M/T Battery Tray. JAPAN BUILT, 2023, 2.0 liter - 7440412600 | Toyota Parts Direct, London ON

So battery is installed, it is almost plug and play.

The bottom right bolt has a small gap to fully seat, so I stacked 4 washers then bolted it down...
View attachment 446271


You'll want to remove the air intake box to do this, trust me. It's simple though couple plugs and 2 screws.

There is a very small difference in the alignment of the right side screws, a couple MM, since the plastic is flexible I just started the screws then went back and forth tightening them.

Trying to tie down the middle hole was not practical, however after tightening the others I was able to rock the car using only the battery tray so I'm satisfied. Very small amount of movement in the top left corner but not worried about it.

View attachment 446278

View attachment 446281

The bottom right bracket I had to take off my old tray since it wasn't included, it was slightly off but I just tightened it down and it holds the battery well

View attachment 446282

Here it is all installed and working well! Nice upgrade from the older Corolla version to the newer one

 

Yeah, I found several places to buy the n2 tray at $75 for new or used on ebay for $50. I'll probably go new and then maybe recoup some of the expense by selling my n1 tray on ebay.
With shipping involved I'm probably better off to buy the new one.