2017 12 volt battery replacement

My 2017 12 V battery just died on the side of the road after listening to music for like 15-20 minutes, so I guess it’s time to replace it.

When I called Costco, the guy said he knew for certain their 51R battery doesn’t fit because Toyota apparently uses slightly smaller terminals. I was pretty surprised, because I’ve never heard of such a thing.

Has anyone else had this problem, and do you know what particular battery model I need to look for?

 

Thanks for your reply, Mendel.

I’ve been searching a little online, and I think the Costco guy might be mistaken.

The Interstate Battery website says my car takes a DIN (German designation) H4 battery, which another site says is equivalent to a BCI group 140R battery. The battery posts should be regular SAE type A, so I’m not sure what the Costco guy was saying.

 

Thanks for all your help, everyone.
I did some researching over the weekend and made a spreadsheet with some basic information. (Maybe a little overkill) Hopefully it's beneficial to anyone else who needs to replace their battery too.

I'm having problems uploading a pdf or an image, so I've linked an image of the pdf here: temp Imageq MOas T — Postimages
If I can figure out how to upload a pdf, I'll come back and add it here.

Bottom line: it looks like I can get an AC Delco absorbed glass mat (AGM) battery in the right size for less than I can get a traditional flooded battery. Great deal from some online sellers. I'll likely go with Summit Racing at $152+tax, free shipping, no core. Most other retailers charge $250+ for a comparable battery. The AGM will be an upgrade which should last longer and give me more radio time.

AC Delco is a GM company, and they don't list any applications for other car manufacturers, even though some of their applications use the same exact size. I've since learned that BCI Group 140R, DIN H4, and EN LN1 are all the same batteries. Same dimensions, same terminal locations and polarity.

Battery Group Sizes and Cross Reference Chart with pictures | BCI, EN, DIN Codes

 

Here's a pdf of my comparison shopping, with clickable links: Dropbox - Prius Batteries.pdf - Simplify your life

A lot of the specifications from the websites are dubious. For example, Summit Racing and Rock Auto list the exact same battery, but their weights differ significantly. One site even lists two different weights within the same listing.

 

Just following up to add a fixed link to what I found was the best deal. (The link in my pdf included a session id, which breaks it for other users.)

LN1 AGM
ACDelco 88866037 ACDelco Gold Automotive AGM Batteries | Summit Racing

This is both the best battery (because it's an AGM) and the cheapest I found.
Landed on my doorstep for $166 including CA tax, free shipping, perfectly packaged and handled. No core charge. Took about 10 minutes to install and is working perfectly.

 

That's an intriguing upgrade. That write-up is for a 60 Ah battery, which is a 20% improvement in charge over the 50 Ah AGM battery I bought, but given enough space, one might fit an even higher capacity battery. The penalty is of course, added weight you're dragging around and dragging down your MPG with no daily benefit. The benefit for me would be those occasions where I ran the battery down listening to the radio on the side of the road or while camping.

My old OEM battery is actually in pretty good shape still, and I might wire that up to the battery backup for my home security cameras, modem, and router.

 

I don't have the Toyota part number for a 2017, but if you scroll up to posts #7, there's a link to a BCI, EN, and DIN cross reference chart.
Basically, you're looking for a BCI Group 140R, which is equivalent to a DIN H4 or an EIN LN1. Double check on your own battery to be sure.

On post #8, I made a link to a chart with the somewhat extensive comparison shopping I did before finally settling on the AC Delco Absorbent Glass Mat battery I purchased from Summit Racing. It's been working perfectly since I installed it in my 2017 almost a year ago. After installing an AGM battery in my mother in law's Nissan that was draining and killing batteries like crazy, I've become a fan of that type of battery. No more problems many years out now.