At some point they started using the same battery in both the 2.5 and the 3.6. Maybe 2018? Prior to that the 2.5 was 356CCA as you said. I've never seen a confirmed number for the RC, and it isn't on the sticker on the battery.

They were probably too embarrassed to show a reserve capacity in the single digits range.

 

At some point they started using the same battery in both the 2.5 and the 3.6. Maybe 2018? Prior to that the 2.5 was 356CCA as you said. I've never seen a confirmed number for the RC, and it isn't on the sticker on the battery.

They were probably too embarrassed to show a reserve capacity in the single digits range.

LOL, Thanks!

 

From the MY 2015 Owner's Manual Specifications section:

Battery type and capacity (5HR)

• 2.5 L models 55D23R (12V-48AH)
• 3.6 L models 75D23R (12V-52AH)

48 Ah capacity is actually pretty respectable, especially for a 5-hour discharge rate (I think it's usually 10 hours, which should give a larger number). In theory that means if fully charged it can deliver 9.6 A for five hours under specified conditions before the voltage drops to some specified level.

I have never seen an RC (Reserve Capacity) figure, which is the number of minutes a fully charged battery at 80°F will discharge 25 amps until the voltage drops below 10.5 volts.

 

48 Ah capacity is actually pretty respectable

Sounds like a pretty optimistic spec considering real life performance (or lack thereof) with these batteries. They probably "forgot" the decimal point between the 4 and the 8. ?

 

For comparison, the 3.6 specs would be great also, if you have them!

The battery details as written on the factory fitted battery in my Australian spec 2019 MY19 Outback 3.6R:

Panasonic 95D26R(F1), 20C: 73Ah (25ºC), 12V, CCA 630A (-18ºC), RC 128 min (25ºC), 18.9kg.

It is a D polarity std terminal & measures 260mm x 171mm x 200mm high (225mm total height).