---
id: faq-0083
title: "How do I care for my Subaru's battery?"
category: faq
subtopic: service-and-maintenance
page_type: faq
source_url: "https://www.castlesubarumchenry.com"
tags: ["battery", "maintenance", "electrical"]
questions:
  - "How long do Subaru batteries last?"
  - "What signs mean my battery is failing?"
  - "How do I maintain my car battery?"
related: [service-appointments, genuine-parts]
dealer: Castle Subaru McHenry
---

A healthy battery typically lasts 3-5 years, though that varies with climate and driving habits. Cold weather drains battery power faster, so winter is when failures are most common.

Signs of a failing battery include slow cranking, dim lights, electrical glitches, or the battery warning light on your dashboard. Have your battery tested if you notice any of these-a simple test takes minutes.

Castle Subaru McHenry can test your battery during service, replace it with a genuine part if needed, and ensure your charging system is working properly. Call (779) 601-0797 to schedule a battery check or replacement. We stock genuine Subaru batteries and can get you back on the road quickly.