51r battery inconsistency.

[Wheel366]

My wife's CRV takes a 51r. I have the EverStart Maxx bookmarked. I also have what is called a EverStart Platinum (Boxed) bookmarked which is also a 51r but it says it doesn't fit the vehicle.

https://www.walmart.com/ip/EverStar...ttery-Group-Size-51R-12-Volt-500-CCA/28275660

Looking at pics, the terminals are on the opposite side. I would think that a 51r is the same for all but this has me thrown for a loop.

https://www.walmart.com/ip/EverStar...CA/14130452206?classType=REGULAR&from=/search

Thoughts on this? Am I missing something? Probably am; I'm getting old! Maybe I've had too much to drink ma. On the other hand, maybe I haven't had enough!

BTW, this AGM looks identical to the Duralast Platinum Group Size 51R AGM but with the terminals on the correct side on the Duralast.

 

[GSCJR]

This first one is correct, the second one looks like it's for a Prius.

 

[Hirev]

Some battery group sizes have a version with the post on opposite sides in your case you may need a group 51 and not a 51r.

https://www.walmart.com/browse/auto...91083_1074765_6499603_1104292_5926828_5782369

 

[Carmudgeon]

Walmart's pictures certainly contradict either other, but their sales lit, or any other marketing photos should not be taken as gospel.

There's an excellent chance that the battery on the rack will come from a different maker, depending on regional supply chain, and differ much more greatly than with respect to the terminal polarity orientation pictured.

This is the gospel:

https://batterycouncil.org/battery-facts-and-applications/bci-group-sizes/

or https://batterycouncil.org/wp-content/uploads/2023/10/BCI-Group-Sizes.pdf (direct link)

The only physical difference between a 51 and 51R is the reverse terminal polarity.

 

[Dave Sherman]

A CR-V should take a 51R. I think group 51 and 51R batteries are my nemesis. My MG takes a group 51, but every application guide lists a 51R, which always leads to much discussion with the counter droids when I need a new one and I have to explain that I'd rather not short out the terminals with the battery bracket. Then there was my 2008 CR-V where the Autozone droid sold me the correct 51R, but grabbed a 51 off the rack by mistake, which I didn't notice until I tried to swap it in the parking lot. Let's just say he didn't grasp that it was a simple mistake that was easily corrected.

 

[slacktide_bitog]

can a 35 fit?

 

[50yr Street Mech]

My 13' CRV takes a 51R. The terminals are reversed. On a standard 51, the terminals are normal, but Honda has to be different. Not to mention, they mounted it too close to the radiator, so it gets tons of extra heat. A known battery killer.One of the 2 rad fans just blows hot air right onto it.... And it''s not even insulated. And they mounted it where you can't get you're hand to the back of the headlamp to change the bulb. Really just shoe horned everything in there. Idiots.....

 

[JeffKeryk]

can a 35 fit?

I put a 35 in our TSX. Tight fit but just bend the hold down.
This is a common swap on the 4 banger Accords.

Get the fatter 6 cylinder negative cable!

 

[Hirev]

I always take a pic with my phone these days of battery in the vehicle that shows battery terminal orientation when hunting for a battery. There is a lot of misinformation on the battery terminal orientation these days.