Tesla

Tesla Model Y Long Range pack (2026 refresh)

Lithium-ion (cathode not published) cells · 79.8 kWh · used in 1 model variant.

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Pack reference

Lithium-ion (cathode not published) · 358 volts, 223 Ah as declared to EPA; cell count not published

About the pack

Capacity

79.8 kWh

as published

Fast charge

—

limited data

Warranty floor

70%

capacity floor at 8 yr / 120k mi

Pack overview

ChemistryLithium-ion (cathode not published)

Cell supplierNot published

Cell formatNot published

Voltage (nominal)358 V

CoolingLiquid

Architecture358 volts, 223 Ah as declared to EPA; cell count not published

Warranty 8 yr / 120k mi

Capacity floor70%

Known issues

High

NHTSA 25V-690 (October 2025) covers about 13,000 2025 Model 3 and 2026 Model Y vehicles. The battery pack contactors may fail and cause a loss of drive power. Tesla Service replaces the contactors free of charge.

NHTSA recall

Low

EPA certified the refreshed Model Y as a 2026 model, with a commerce date of February 5, 2025. Tesla declared 358 volts and 223 Ah for the Long Range pack and publishes no capacity in kWh, cell supplier or charging rate.

Manufacturer

Low

Tesla's warranty covers the Model Y Long Range and Performance battery for 8 years or 120,000 miles and the Standard for 8 years or 100,000 miles, each with at least 70% capacity retention.

OEM warranty

How this pack ages (industry context)

Industry fleet aggregates: 2.3% average annual capacity loss across 22,700 EVs / 21 models (Geotab, 2026), and 95% range retention at 5 years on average across 30,000+ vehicles (Recurrent, 2026).

OEM warranty floor on this pack: 8 yr / 120k mi to 70% capacity.

Public per-pack degradation curves are not available for most models. Individual results vary materially with climate, charging behavior, and DC fast-charge frequency.

Vehicles using this pack

Tesla Model Y

2026-2026 · Long Range (rear- and all-wheel drive)

294-357 miEPA range

105-138MPGe

Full reliability page →

Battery-Related NHTSA Recalls

Recalls affecting battery, charging, electric propulsion, or thermal-event systems on vehicles using this pack, as of the last complaint-data run. Each campaign names the model generation it was filed against; the summary gives the model years covered.

25V690000 Oct 10, 2025 ELECTRICAL SYSTEM:PROPULSION SYSTEM:FUSES, RELAYS, CONTACTS, AND SHUNTS

Tesla, Inc. (Tesla) is recalling certain 2025 Model 3 and 2026 Model Y vehicles. The battery pack contactors may fail, causing a loss of drive power.

Consequence: A loss of drive power can increase the risk of a crash.

Filed against: Tesla Model Y 2026-2026

For TWD editorial coverage of major recall campaigns, see /recalls/.

Frequently Asked Questions

What chemistry is the Tesla Model Y Long Range pack (2026 refresh)?

The Tesla Model Y Long Range pack (2026 refresh) uses Lithium-ion (cathode not published) chemistry. Tesla has not named a cell supplier for this pack. Cell format has not been disclosed. Pack architecture: 358 volts, 223 Ah as declared to EPA; cell count not published.

What is the warranty on this pack?

8 years or 120,000 miles, with capacity coverage to 70% of original. Specific terms vary by year and trim; check the manufacturer's warranty booklet for the exact vehicle.

How much does this pack degrade over time?

Industry-wide fleet aggregates show roughly 2.3% average annual capacity loss across 22,700 EVs (Geotab, 2026), with about 95% range retention at five years on average across Recurrent's 30,000+ vehicle fleet (2026). Public per-pack degradation curves are not available for most models. The Tesla Model Y Long Range pack (2026 refresh) battery warranty runs 8 years / 120,000 miles to a 70% capacity floor, which is the OEM-guaranteed minimum within that period. Individual results vary with climate, charging habits, and DC fast-charging frequency.

Which vehicles use the Tesla Model Y Long Range pack (2026 refresh)?

Tesla Model Y 2026-2026 (Long Range (rear- and all-wheel drive)).