Subaru key fobs are essential for modern vehicle convenience, allowing for remote locking, unlocking, and starting your car. Like any electronic device, they rely on batteries to function, and knowing What Battery For Subaru Key Fob your car needs is crucial for uninterrupted access. This article will delve into the specifics of Subaru key fob batteries, exploring the common type, factors affecting their lifespan, and how to ensure you choose the right replacement.
Most Subaru key fobs utilize a CR2032 3V lithium coin battery. This battery type is widely used in small electronic devices due to its compact size, long shelf life, and stable power output. It’s important to confirm your specific Subaru model’s requirement, but the CR2032 is overwhelmingly the standard for Subaru key fobs across various models and years. You can usually find this information in your owner’s manual or by checking the markings on your old battery once removed.
The lifespan of your Subaru key fob battery can vary depending on several factors. While some manufacturers claim a multi-year lifespan, real-world conditions often dictate otherwise. Temperature and humidity play significant roles in battery longevity. Exposure to high humidity and drastic temperature changes can accelerate the self-discharge rate of lithium coin batteries. This is particularly relevant for key fobs, which often endure the fluctuating climates inside vehicles, especially during seasonal changes. While it’s often assumed that air exposure itself is detrimental, it’s more accurately the humidity present in the air that contributes to battery degradation over time.
Manufacturers often package CR2032 batteries in double-sealed packs to guarantee a longer shelf life, sometimes up to 10 years. This packaging aims to minimize exposure to humidity before use. However, even standard blister packs, while not always hermetically sealed, provide a degree of protection. The small holes sometimes found in these packs are not necessarily detrimental to the battery itself but are often related to packaging processes or, increasingly, child-safety regulations. Child-resistant packaging is becoming more prevalent for coin batteries to prevent accidental ingestion by children, a serious safety concern addressed by recent regulations.
When selecting a replacement battery for your Subaru key fob, opt for a reputable brand like Duracell or Energizer to ensure quality and reliability. Always check the expiry date on the packaging to guarantee you’re getting a fresh battery with a full lifespan ahead of it. While cheaper, unbranded batteries might be tempting, they may not offer the same longevity or performance, potentially leading to more frequent replacements and inconvenience.
In conclusion, understanding what battery for subaru key fob you need – typically a CR2032 – is the first step in maintaining your key fob’s functionality. Being mindful of factors like humidity and choosing quality batteries will help ensure your Subaru key fob remains reliably powered for years to come. Regularly replacing the battery every couple of years, or sooner if you notice decreased range or responsiveness, is a simple preventative measure to avoid key fob failure at inconvenient times.
