Largest series group batteries to fit in Prism 24zg battery box under the steps?

[Vegabonds]

Does anyone know what are the largest batteries that can fit in parallel in the battery box under the steps?

[AudiDudi]

Following - I think I have seen where people ahave put group 27 batteries in when replacing the group 24s.

[Vegabonds]

Wondering if anyone has tried group 31's.

[KatanaPilot]

Assuming the Prism battery box is the same under step box that the Forester MBS has - then yes.

Here is my post of a Group 31 AGM battery install on our MBS that I did several years ago.

[Vegabonds]

Originally Posted by KatanaPilot

Assuming the Prism battery box is the same under step box that the Forester MBS has - then yes.

Here is my post of a Group 31 AGM battery install on our MBS that I did several years ago.

UPDATE
Bought two group 27 AGM batteries and they do not fit. Upgrade will now consist of two VMAXTANKS Group 24 MR107-85 AGM batteries. Disappointing that 2 group 24 batteries for 170AH is the best you can do in the space.

[DaveJordan]

Not sure why the group 27s don't fit...but if it's due to height, someone modified their step by removing the step cover, adding a thin strip of wood on the tops of the four sides of the box, and then reinstalling the step cover. This effectively increased the height available for the batteries (and the riser height of the step) by the thickness of the wood strips.


I know there's a thread about this somewhere...

Dave

[Vegabonds]

Height not a problem. The length of the batteries is. They were a hair over 12 inches long. The dimensions of the box want you to install the batteries perpendicular to the step and they will not fit that way. Conversely the width of the battery is just shy of 6 3/4 inches so you cannot fit 2 in that orientation either. Modifying the internal dimension and the entry clearance hole is not worth it. DW had knee replacement and increasing the height of the box to laterally stack the batteries would add a couple of inches to the riser which she would not be able to navigate safely. It is what it is.......

[dogpa]

On a separate note but battery related. Has anyone replace chasis battery on a 2016 24 R?

[Egalt]

Originally Posted by dogpa

On a separate note but battery related. Has anyone replace chasis battery on a 2016 24 R?

….cheese sandwich.

When you bought the 2 group 27 batteries, did you measure the dimensions of the box to the batteries before you bought them?

[tomkatb]

GC2 six volt batteries have a rather small footprint but, are higher. 10x7

I would check dimensions and see if possibly they might fit. I am surprised how small but, heavy they are.

230 amps is a bunch for $186 at Costco or Sams.

More abuse friendly as well.

[Iwannacamp]

Originally Posted by Vegabonds

UPDATE
Bought two group 27 AGM batteries and they do not fit. Upgrade will now consist of two VMAXTANKS Group 24 MR107-85 AGM batteries. Disappointing that 2 group 24 batteries for 170AH is the best you can do in the space.

How much too long?

They normally have hold down pieces on the bottom/end of the battery. If is 3/8 or so off...one could trim that off. The 24 and 27 are the exact dimensions except the length.

I am pretty sure the CG6 batteries are an inch or so taller

[Vegabonds]

The group 27 will not clear the opening for the box. The box itself is just big enough to accommodate the length. The lip around the box prevents them from going in.