Battery Varta or OEM Subaru

My XM3s went from a good 6 hour run time down to 2.5 hours in about 20 months. The last month alone has seen 30 mins wiped off them.

I went with the Varta A4 models bought from a Czech supplier called [Battex.cz](https://Battex.cz).

Varta are a pretty decent brand of battery (although their consumer AAs suck), would not expect it from them.

fits perfectly in a NB

I just replaced my dead Zenipower OEM cells with Varta 1254 A3. So far the battery life is exactly as specified by Sony. We'll see if the Vartas can handle the charging regime.

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.

I'm still running on the original battery, which does surprisingly well until subzero temps set in, and then the poor thing just cries a lot and breaks my heart, so I jump it with my Noco and things are fine.

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.

In my old Audi, I had a non-OEM battery and I did the +1 in the serial number trick. That battery failed in a couple of months. I honestly think it was a bad unit.