Power Up! How Many Amps Can the Subaru Crosstrek Premium Produce?

If you’re a car enthusiast or a proud owner of a Subaru Crosstrek Premium, you may have wondered about a crucial aspect of your vehicle’s electrical system- how many amps can your car produce? Amperes or "amps" in simple terms, refer to the electrical power that runs through the wires of your car’s electrical system. The Subaru Crosstrek Premium is a reliable and efficient car, but how much power can it handle?

In this article, we will take a closer look at the electrical capacity of the Crosstrek and how it impacts the car’s performance. We will also delve into the amps produced by the alternator, the car’s electrical load capacity, how to calculate amps needed for specific accessories, and tips for managing the car’s electrical capacity.

Understanding Electrical Capacity

Before we dive deeper, let’s start with an overview of the Crosstrek’s electrical capacity. The electrical capacity of a car refers to how much electrical power it produces. This capacity impacts the car’s overall performance as well as the effectiveness of the car’s accessories. One way to measure electrical capacity is through amps.

Amps Produced by the Alternator

The alternator is an essential component of any car’s electrical system. It produces electrical power through a system of belts and pulleys that connect to the engine. In the Crosstrek, the alternator produces approximately 110 amps. This is considered to be a healthy amperage output for most applications and accessories.

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Electrical Load Capacity

Every car has an electrical load capacity, which refers to the amount of electrical power that the car can handle without causing damage to its electrical system. Exceeding the electrical load capacity can cause damage to your vehicle and even lead to safety hazards. The Crosstrek has an electrical load capacity of 140 amps, which means the car’s electrical system can handle up to 140 amps of power.

How to Calculate Amps Needed for Specific Accessories

If you are planning to install new electronic accessories in your Crosstrek, it’s important to calculate how many amps they will require. This will ensure that you stay within the car’s electrical load capacity and avoid any potential damage or safety hazards. Here’s a simple formula to calculate amps needed;

Amps = Watts / Volts

For instance, if you are planning to install a 100-watt spotlight in your Crosstrek, and the car’s electrical system operates at 12 volts, you can calculate the amps needed like this:

100 watts / 12 volts = 8.33 amps

Tips for Managing the Car’s Electrical Capacity

Managing the electrical capacity of your Crosstrek is crucial to ensure optimal performance and avoid electrical hazards. Here are some tips to keep in mind:

  1. Turn off accessories you’re not using: Turning off accessories like the radio or air conditioning when they’re not in use can save you some electrical power.

  2. Don’t overload your car with accessories: Adding too many accessories can put a strain on your car’s electrical system.

  3. Charge your car battery regularly: Keeping your car battery charged can help you avoid power drainage issues.

  4. Check your car’s electrical system regularly: Regular checks on your car’s electrical system can help you avoid any potential problems that could affect your car’s performance.

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Q: How much power can the Subaru Crosstrek Premium produce?

A: The Crosstrek’s electrical load capacity is 140 amps, and the alternator produces approximately 110 amps.

Q: What happens if I exceed the car’s electrical load capacity?

A: Exceeding the electrical load capacity can cause damage to your vehicle’s electrical system and even lead to safety hazards.

Q: How can I calculate the amps needed for specific accessories in my car?

A: You can calculate the amps needed using the formula Amps = Watts / Volts.


The Subaru Crosstrek Premium is a reliable and efficient car that can handle a considerable amount of electrical power. By understanding the electrical capacity of your car’s electrical system, you can better manage the accessories that you install and avoid any potential problems. Remember to follow the tips outlined above to keep your Crosstrek’s electrical capacity in check and ensure optimal performance.

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Davis Bellew

As a Subaru owner and enthusiast, Davis has a deep understanding of the needs and concerns of Subaru drivers. He specializes in writing informative and engaging content about Subaru maintenance and repair, and his articles are always well-researched and easy to understand. When he's not writing, he enjoys hiking and photography.

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