Battery Duracell or OEM Subaru

I got a Duracell from batteries plus because it has a two year warranty. Starts strong so far, but it’s only been maybe 4 months.

My dealer replaced the battery, updated the firmware and did a parasitic drain test.

CYL10014 Duracell Ultra 14AH-BS 12V 220CCA AGM Powersport Battery. First thing I switched when I brought the rogue home. Goodbye tender.

The entire suspension was recently replaced with German parts, along with a full upgrade of rotors and low-dust ceramic pads on all corners and a new Duracell battery a few months ago.

I replaced mine with a Duracell branded battery from Batteries Plus. Direct fit, vent tubes connected right up.

Any tips or advice before I fork out money for a new battery? I have some anxiety hoping its not the alternator dying, or less likely the starter. All things point to a slowly dying battery but I want a second opinion.

Subaru batteries aren't great in the cold either

My battery made for Subaru died on my 2017 Forester 2 weeks before the warranty ran out. SUBARU has their own problems with their batteries.

Subaru batteries suck

Duracell killed 6 pieces of electronics of mine over 10 years. If you paid me, I would not use them.