Toyota Tundra Battery Size

Most Toyota Tundras have a battery size of 24F, 27F, 34R, or 35. In newer hybrid-battery models, expect a battery capacity of 1.87 kWh.
Written by Kathryn Mae Kurlychek
Reviewed by Melanie Reiff
The latest Toyota Tundra hybrid has a battery size of 1.87 kWh. In older Toyota Tundras, most batteries are non-electric and range between 24F and 35 depending on your truck's age and trim level.
The Toyota Tundra has remained a staple among classic American pick-up trucks for over two decades. Originally thought to be too small to compete in its segment, the Tundra’s twenty-year transformation from the underdog to a pick-up classic has solidified its reputation in the trucking world.
The latest Toyota Tundra lives up to this legacy with enhanced performance and comfort, alongside some new, additional features, like an optional hybrid battery. 
No matter the Tundra you drive, battery maintenance can be key to preserving the comfort and quality that Tundra trucks are known for. Here to break down all the specs on the Toyota Tundra’s battery is
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How big is a Toyota Tundra battery? 

The battery size for a Toyota Tundra varies by model year, and sometimes also by vehicle trim level
In the 2022 Toyota Tundra, an optional hybrid battery can replace the traditional battery used in earlier models. Available since 2021, the i-Force Max hybrid battery has become a customer-optional alternative to standard batteries. 
With a capacity of 1.87 kWh, the hybrid battery is small but efficient—especially in combination with the electric motor, which can produce 48 Horsepower and up to 184 lb-ft of Torque by itself. But transitioning to primarily electric power is not the Tundra’s top priority—and many modern trucks still retain the more traditional absorbent glass mat (AGM) battery
As far as lead-acid batteries go, Tundras are most commonly equipped with a 24F, 27F, 34R, or 35 group battery size
In hybrid models, the nickel-metal hybrid battery is housed beneath the truck’s rear seat cushions—but in non-hybrid models, you’ll find the battery located under the hood. 
MORE: Why the Toyota Tundra was named the most-loved full-size pickup truck

Battery groups, explained 

The Battery Council International, or BCI, is the association responsible for creating the grouping system by which car batteries are categorized. Different groups encompass batteries with similar characteristics, including battery type, dimensions, terminal design, and power rating
Batteries with a flat or reversed terminal layout will typically be displayed as a number followed by a letter—such as “F” or “R”—to represent this change. A 24F battery, for example, indicates a flat terminal layout on a group 24 battery. 
The correct battery size for your vehicle will depend on its make, model, and sometimes also the vehicle’s age and trim level. In most Toyotas, you’ll find a battery group size of 24F, 27F, or 35—although many Tundra trucks take a 34R group battery
MORE: How to get a hybrid or electric car tax credit

How does the Toyota Tundra’s battery measure up to the competition? 

The average lifespan of a Toyota Tundra battery is between three and five years. But routine maintenance can go a long way in preserving the life of your battery. 
Even with regular cleanings and care, you may be wondering how the Toyota Tundra’s battery compares to its top competitors. The table below summarizes the battery specs in the top pick-up trucks:
BCI battery size/kWh
Battery lifespan
(2022 Nissan Titan)[]
BCI group size 35
3 to 5 years
(2022 Ram 1500)[]
BCI group size 65
6 years
(2022 Ford F-150)[]
98 to 131 wKh
3 to 5 years
(2022 Chevy Silverado 1500)[]
BCI Group 75/86
3 to 5 years
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How to save on Toyota Tundra car insurance

Part of preserving the life of your Toyota Tundra is taking care of your truck’s battery. And another part is making sure you have the right car insurance coverage for your truck. 
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