Charging Speeds Explained: AC, DC, and What Affects Them

A straightforward guide to Polestar 2 charging — what speeds to expect and what factors affect them.

Understanding how your Polestar 2 charges and what speeds to expect takes the guesswork out of road trips and daily use.

AC Charging (Home / Destination)

The Polestar 2 has an onboard charger that converts AC power to DC for the battery:

Single-phase (most homes): Up to 7.4 kW on a 32A circuit. Full charge in roughly 10–11 hours.
Three-phase (where available): Up to 11 kW. Full charge in roughly 7–8 hours.

The onboard charger maxes out at 11 kW regardless of what the EVSE (wall box) can supply.

DC charging bypasses the onboard charger entirely — the station feeds DC directly into the battery.

Peak rate, 2021: up to 150 kW
Peak rate, 2022–2023 (78 kWh): up to 155 kW
Peak rate, 2024+ with the 82 kWh battery: up to 205 kW. This covers all 2024+ single-motor Long Range cars and US dual-motor cars from 2025.
Peak rate, 2024 US dual-motor cars: up to 155 kW (these kept the 78 kWh pack)
Standard Range (non-US markets): lower, around 135 kW
10–80% time: Approximately 30–35 minutes under optimal conditions.
Optimal entry SoC: Arrive at the charger between 10–20% for the best curve. Starting at 50% means you've already passed peak charging speed.

1.Battery temperature. A cold battery charges slowly. Preconditioning (automatic when you navigate to a fast charger via Google Maps) warms the battery for peak performance.
2.State of charge. Charging speed drops significantly above 80%. Charging from 80–100% takes almost as long as 10–80%.
3.Charger capability. Not all "fast chargers" are equal. A 50 kW station will never exceed 50 kW regardless of what your car supports.
4.Ambient temperature. Extreme heat can also trigger thermal throttling to protect battery longevity.

Daily charging: Just use AC at home overnight. Charge to 80% for daily use to preserve battery health.
Road trips: Use the built-in Google Maps route planner — it factors in charging stops, battery state, and charger availability.
Winter: Allow extra time. Preconditioning helps, but expect 20–30% slower DC charging in cold weather.