The 2021 Subaru Outback is typically fitted with a BCI Group 25 battery — Flooded lead-acid chemistry recommended. The Raya Energy catalog has 1 matching ZITEX SKU.
How many CCA does a 2021 Subaru Outback need?
OEM specifies at least 500 CCA (cold cranking amps). In Canadian winters, anywhere from 500 to 600 CCA is sensible — higher CCA gives more starting headroom on the coldest mornings without affecting normal operation.
Does my 2021 Subaru Outback need AGM?
AGM isn't required for the standard 2021 Subaru Outback fitments listed above — flooded chemistry is fine. AGM is still a sensible upgrade for cold-climate use or high-accessory-load vehicles.
