Battery OEM Nissan or OEM Subaru

I only just replaced the Subaru branded battery a couple weeks ago with another Subaru battery. It comes with a 30 month warranty and supposed to have a 55 lifespan.

Yeah they use undersized batteries, but just buy a good one and that's the end of it. my 2019 Legacy had is original battery after 4 years when I traded it in.

Yes. Subaru batteries are hot garbage. Go third party all day. I stand by any AGM I can pick up at Autozone, since they stand behind the batteries they sell.

I have a 2015 Nissan LEAF SV. In -25C or colder (and to be fair, it's rarely -25C (not counting the windchill) during the day), with moderate heat on (set heat to 19C or less) plus heated steering wheel and heated seats (both of which use relatively very little power), I can lose a good 60% of my range

I had this problem with my 2019 Forester in stop and go traffic on the Dallas North Tollway. I was able to force the car into park and shut it off and back on manually, and this happened about a half dozen more times before my dealer finally admitted that there was a class action on those batteries. I’ve since had it replaced two additional times under a labor warranty. Like I guess it’s fine because it’s free, but very annoying that I bought a Subaru for reliability and I’m in the shop at least every 9 months for a new battery.

The auto start/stop failed to start the car today while waiting in a left hand turn lane at a red light in traffic. Potentially dangerous situation for anyone. Fortunately the person behind me got out of his car and pushed my car across two traffic lanes to the right curb. The Subaru dealer told me last week when I had the 42k mile maintenance done that the battery was fine based on a battery test. I had specifically asked for the battery to be checked because the starts sounded weak. Now I’m back at the dealer after the failure incident and the diagnoses is a bad battery. It is not safe to have the car automatically shut down on the road when the battery does not have the power to auto start.

We're having the same issue on our 22 Pathfinder. We're on our second battery. The first was replaced under warranty in January '24 after failing and stranding my wife out of town in the cold. It took 6 hours of testing before they would approve replacement.

they do suffer more with battery degredation due to crap thermal management (older models).

Subaru's factory batteries suck. I've had to replace them in several Subaru's that were only like 2 years old. Doubly tough if the car is just sitting for a period of time between uses.

Our other car, the 2016 Leaf, kinda is the embodiment of all the negative talking points you hear about, since it's an older EV: It uses an outdated & slower charging standard, has a small battery, and has significant battery degradation (29%) since Nissan decided, in their infinite wisdom, to not give the Leaf a coolant loop for the batteries. (Heat is the biggest killer for EV batteries).