Volvo / Polestar (Geely Group)

Geely SEA Platform Pack (111 kWh)

NCM 811 cells from CATL · 111 kWh total (107 kWh usable) · used in 2 model variants.

Geely SEA Platform Pack (111 kWh)

NCM 811 · CATL · 17-module under-floor pack, liquid-cooled, 400V (SEA-1 platform)
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About the pack
Capacity
107 kWh
useable · 111 total
Fast charge
250 kW
peak · 30 min 10→80%
Warranty floor
70%
capacity floor at 8 yr / 100k mi

Pack overview

ChemistryNCM 811
Cell supplierCATL
Cell formatPouch
Voltage (nominal)400 V
CoolingLiquid (glycol)
Architecture17-module under-floor pack, liquid-cooled, 400V (SEA-1 platform)
Warranty8 yr / 100k mi
Capacity floor70%

Known issues

Low
Polestar 3 and Volvo EX90 share platform, pack, and software stack. Production ramp at Charleston SC was delayed by software readiness through most of 2024; early build customers had range-prediction and infotainment issues that OTA updates progressively resolved.
Low
DC fast charging up to 250 kW on a 350 kW charger; charge curve drops above 70% SOC. Normal high-energy NCM behavior.
High
Volvo EX90 software-related drive-system stop-sale in early 2024 affected ~20,000 vehicles; resolved via dealer reflash and updated build firmware.
Low
Real-world range tests below EPA estimates by ~10-15% in mixed driving; normal for large 5,500+ lb three-row EVs.

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 / 100k 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

Frequently Asked Questions

What chemistry is the Geely SEA Platform Pack (111 kWh)?

The Geely SEA Platform Pack (111 kWh) uses NCM 811 cells supplied by CATL. Cell format: Pouch. Pack architecture: 17-module under-floor pack, liquid-cooled, 400V (SEA-1 platform).

What is the warranty on this pack?

8 years or 100,000 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 Geely SEA Platform Pack (111 kWh) battery warranty runs 8 years / 100,000 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 Geely SEA Platform Pack (111 kWh)?

Polestar Polestar 3 2025-2025 (Long Range Single Motor / Dual Motor); Volvo EX90 2024-2025 (Twin Motor / Twin Motor Performance).

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