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Known for their durability, engineering, and dependable performance, Subaru vehicles rely heavily on a healthy battery to power essential internal components. Understanding your battery’s typical lifespan and recognizing the warning signs of failure are crucial for timely Subaru battery replacement.
Adopting proactive battery care habits helps prevent unexpected breakdowns while maximizing your battery's operational life.
How Often Do Subarus Need New Batteries?
The average lifespan of Subaru 12-volt batteries generally range from 3 to 5 years. Some factors responsible for battery longevity are:
Driving Habits
Driving patterns, such as frequent short trips or limited battery recharge time, are common reasons behind premature depletion of Subaru batteries.
Local Climate
Extreme temperatures can significantly accelerate battery depletion. Cold weather causes an additional strain on the battery during start-up and intense summer heat can lead to the evaporation of internal battery fluids.
Electrical Load
Some electrical accessories consume more power for their functionalities, leading to faster battery drain. For instance, advanced electronics, such as the Subaru EyeSight® driver assist system and heated seats in luxury models, use more power.
Subaru vehicle owners should consult a professional for a battery check after it crosses the lifespan set by industry standards.
After this period, the battery starts showing signs of reduced capacity and may reflect electrical irregularities. So, it is important for you to get your vehicle's battery testing done once it hits the 3-year mark.
When You Should Consider Replacing Your Subaru’s Battery
Detecting the common signs of gradual decline in battery power is the key to ensuring safety and reliability. Warning signs you should notice include:
Longer Time for Engine Start
When you notice a slow or difficult engine start, it’s a sign of declining battery capacity. The slow engine cranking is more noticeable in cold weather, which makes the batteries experience more strain.
Needing Frequent Jump-Starts
If your Subaru requires frequent jump starts, it is a strong indication that the lifespan of the battery has ended and you should soon consider a replacement for your Subaru battery.
Electrical Malfunctioning
A Subaru’s battery is the source of power supply for multiple electrical accessories. If you experience poor functioning of electrical components, like dim headlights, flickering dashboard lights, or erratic power window operation, you should consider replacing your Subaru battery.
Battery Age Crosses Minimum Lifespan Period
If your Subaru battery’s age crosses 3 years, you should inspect it regularly and opt for professional testing. Ignoring the battery lifespan could lead to vehicle malfunctions later on.
Revealing Battery Damage
Regular inspection might reveal visible battery damage in the form of corroded terminals and leakage or swelling in the battery casing. If you notice these signs, you should opt for a battery replacement to maintain electrical flow.
Emission of Unusual Odor
If you smell a rotten egg or sulphur-like odor, it could indicate leakage of acid or some sort of internal damage. It might happen due to overheating, and you should address it immediately to prevent more damage or safety concerns.
Conclusion
Following battery maintenance tips and opting for professional servicing can help improve its longevity. However, you should consider professional dealership service when it comes to replacing the battery.
If you’re in Concord, NC, you can connect with the Subaru Concord service center for expert service. We may offer roadside assistance for eligible vehicles through Subaru programs.
FAQs
Do subarus need special batteries?
Not necessarily! Generally, there isn't any need for special Subaru batteries, but the latest models with advanced features may require these battery types to meet their electrical demands.
Can I replace my Subaru battery myself?
Yes, you can choose to replace your Subaru battery yourself using the required tools. However, it is recommended to get professional help for Subaru battery replacement to avoid any unintended malfunction or damage.
What is the average life of a Subaru battery?
Generally, the average life of a Subaru battery lies between 3 and 5 years. Multiple factors, such as driving habits, local climate conditions, electrical load requirements, and battery care routine influence the lifespan.






