Battery Size Group 27F

Group Size 27F Battery: A Heavy-Duty Battery for Canadian Drivers

If you drive a full-sized truck, SUV, or a vehicle with higher electrical demands, the Group Size 27F battery might be exactly what your vehicle needs. Known for its strong starting power and high reserve capacity, the 27F is a common choice for drivers who need reliability in harsh Canadian conditions—especially during cold winters.

Size, Specs, and Average Cost in Canada

The Group 27F is a large 12-volt battery designed for heavy-duty applications. It typically measures about 12.06 inches long, 6.81 inches wide, and 8.88 inches high. It's built to perform in high-demand environments, with average specs like:

• Cold Cranking Amps (CCA): 750 to 900

• Cranking Amps (CA): 950 to 1000

• Amp-Hour (Ah): 75 to 95Ah

In Canada, the average price of a Group 27F battery falls between $190 to $280, depending on the brand, warranty, and whether it’s a flooded or AGM style. Most come with a 3-year free replacement warranty, which is excellent for the long-term peace of mind truck owners look for.

Vehicles That Commonly Use Group Size 27F

Group 27F batteries are primarily found in Toyota and Lexus vehicles, especially models that come with front-facing terminal orientation. Common vehicles include:

• Toyota Tundra

• Toyota Sequoia

• Toyota Land Cruiser

• Lexus GX and LX series

This battery is also compatible with some RVs and marine applications due to its deep-cycle capability. If you’re not sure what your vehicle needs, visit our Car Battery Replacement page to confirm the right fit.

Alternative Battery Sizes for Group 27F

If you can’t get your hands on a 27F battery, a few alternatives may work—but tray dimensions and terminal orientation must be checked:

• Group 27 – Same size but with reversed terminal layout Dimensions: 12.06" x 6.81" x 8.88"

• Group 24F – Slightly smaller, sometimes used in place of a 27F for lighter-duty needs Dimensions: 10.25" x 6.81" x 8.88"

• Group 34 – Same width and height, shorter in length Dimensions: 10.25" x 6.81" x 7.88"

Always confirm the hold-down compatibility and terminal position. If you’re not sure, visit our How It Works page or contact us before swapping group sizes.

How to Check If Your 27F Battery Needs Replacing

Here are a few ways to check if it’s time to replace your battery:

1. Slow engine crank – One of the first signs of a weak battery.

2. Voltage check – A healthy battery should read 12.6V or more when fully charged.

3. Load test – During start-up, voltage should not dip below 9.6V.

If you’d rather not deal with this on your own, MobileBattery offers at-home and roadside battery testing across Canada—including in Burnaby, Calgary, and Montreal.

Group 27F Battery Lifespan in Canada

A Group Size 27F battery typically lasts 3 to 5 years in Canadian climates. Because these batteries are often used in vehicles with higher power demands, frequent short trips, or winter use, their lifespan can vary. Annual testing is a good habit—especially if your battery is more than three years old.

We service customers across the country. View all our locations on the Where We Service page.

Need a Group Size 27F Battery Replacement?

Book online now at bookonline.mobilebattery.ca for fast, professional Group 27F battery replacement anywhere in Canada.