The short answer
Both the Polestar 2 and Polestar 3 accept 11 kW on AC — about 46 A at 240 V — through a J1772 port. Buy a 48 A charger on a 60 A breaker with 6 AWG copper. Polestar names ChargePoint as its US home charging partner, and the ChargePoint Home Flex is a genuinely good unit — but any 48 A J1772 charger does the same job.
Manufacturer charging partnerships are worth understanding for what they are: a commercial arrangement that makes one unit convenient to buy, not a technical requirement. Nothing about a Polestar needs a ChargePoint charger.
The constraint: what this car accepts
Everything else on this page follows from one number. The Polestar 2 and Polestar 3's onboard charger accepts a maximum of 11 kW, which is 48 amps at 240 volts. No wall charger can exceed it, and a charger rated above it delivers no extra speed.
| Specification | Value | Source |
|---|---|---|
| Maximum AC power accepted | 11 kW | Polestar US home charging specifications |
| Maximum AC current at 240 V | 48 A | Polestar US home charging specifications |
| Connector | J1772 | Polestar US home charging specifications |
| EPA range (2025 Polestar 2 Single Motor (19 inch wheels)) | 314 mi | US DOE / EPA fueleconomy.gov |
| EPA efficiency | 29.6 kWh / 100 mi (114 MPGe) | US DOE / EPA fueleconomy.gov |
| EPA published 240 V charge time | 8 hours | US DOE / EPA fueleconomy.gov |
A second trim worth knowing about: EPA lists the 2026 Polestar 3 Long Range Single Motor (20 inch wheels) at 35.5 kWh per 100 miles, 286 miles of range, and 10 hours at 240 V. That spread is why the trim matters as much as the model when you are sizing a circuit.
The consequence: the circuit you actually need
Take the car's 48 A ceiling and work backwards. NEC 625.42 classifies EV charging as a continuous load, and NEC 625.41 requires overcurrent protection at not less than 125% of the maximum load — so a 48 A charger needs a 60 A two-pole breaker and 6 AWG copper at the 75 degC column of NEC Table 310.16.
| Item | This car | Why |
|---|---|---|
| Charger output | 48 A | Matches the car's 48 A ceiling exactly |
| Power delivered | 11.0 kW | The lower of the charger's output and the car's limit |
| Breaker | 60 A, two-pole | NEC 625.41 — 125% of a continuous load |
| Copper conductor (conduit, 75 degC) | 6 AWG | NEC Table 310.16 |
| A bigger charger would | deliver nothing extra — this is already the car's ceiling | The lower of the two numbers always wins |
Charge times, with the arithmetic shown
EPA rates the 2025 Polestar 2 Single Motor (19 inch wheels) at 29.6 kWh per 100 miles. That single figure lets you calculate any charge time you like, and it is why we show the formula rather than asserting a number.
hours = (miles x 29.6 / 100) / (kW x 0.9)
At 11.0 kW, this car gains about 33 miles of range per hour
The 0.9 allows for AC-to-DC conversion losses in the onboard charger — roughly 10% of what your meter records never reaches the battery. EPA efficiency figure from the US DOE / EPA fueleconomy.gov service, 2025 Polestar 2 Single Motor (19 inch wheels), queried 2026-10-05.
| Charger | Miles added per hour | Hours to add 100 miles |
|---|---|---|
| 16 A (3.8 kW) | 12 | 8h 39m |
| 24 A (5.8 kW) | 18 | 5h 40m |
| 32 A (7.7 kW) | 23 | 4h 16m |
| 40 A (9.6 kW) | 29 | 3h 26m |
| 48 A (11.5 kW) | 33 | 2h 59m |
For context, EPA's own published figure for a full charge at 240 V on this trim is 8 hours.
What to buy for a Polestar 2 and Polestar 3
Our picks for the Polestar 2 and Polestar 3
Both are 48 A units that reach this car's full 11.5 kW. The top pick is a house whose panel headroom is uncertain; the alternative is there because most households, and anyone with a tight panel.
A house whose panel headroom is uncertain
ChargePoint Home Flex (hardwired, 50 A)
The most adjustable charger on this page: output steps through 16, 24, 32, 40, 48 and 50 A in the app, so one unit fits almost any panel and can be turned up later if you upgrade the service.
#ad Price as of October 5, 2026. How we make money
Most households, and anyone with a tight panel
Emporia Pro Level 2 EV Charger
The best-balanced 48 A charger for a typical US house: full 11.5 kW hardwired, and the only unit at this price that ships with a whole-home energy monitor so its load management is reading your actual panel rather than guessing.
#ad Price as of October 5, 2026. How we make money
We earn commission on qualifying purchases at no cost to you. Affiliate disclosure.
Connector and adapters
The Polestar 2 and Polestar 3 uses a J1772 port for AC charging, which is what the large majority of home chargers in the US have. No adapter is needed for a J1772 charger.
You need a NACS to J1772 adapter only if you intend to use a Tesla Wall Connector, a Tesla Destination charger or a Tesla Mobile Connector. Rated headroom matters on a part carrying 48 A for eight hours — see best NACS to J1772 adapters.
A J1772 car on a Tesla Wall Connector or Destination charger
A2Z EV Stellar Plug NACS to J1772 AC Adapter
80 A / 19.2 kW rated, which is genuine headroom over any home charger. The part to buy if a Tesla charger is in the picture.
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Both cars, per EPA
| Trim | kWh / 100 mi | EPA range | EPA 240 V time | Miles per hour at 11 kW |
|---|---|---|---|---|
| Polestar 2 Single Motor (19in), 2025 | 29.6 | 314 mi | 8.0 h | 33 |
| Polestar 2 Single Motor (20in), 2025 | 30.8 | 300 mi | 8.0 h | 32 |
| Polestar 2 Dual Motor (19in), 2025 | 33.5 | 278 mi | 8.0 h | 30 |
| Polestar 3 Long Range Single Motor (20in), 2026 | 35.5 | 286 mi | 10.0 h | 28 |
| Polestar 3 Long Range Dual Motor (21in), 2026 | 37.5 | 312 mi | 11.0 h | 26 |
| Polestar 3 Long Range Dual Motor (22in), 2026 | 41.5 | 281 mi | 11.0 h | 24 |
The Polestar 2 at 8.0 hours is comfortably overnight-chargeable at either 40 A or 48 A. The Polestar 3 Dual Motor at 11.0 hours is the trim where the full 48 A starts to matter, particularly on 22-inch wheels where efficiency drops to 41.5 kWh per 100 miles.
On the ChargePoint partnership
The ChargePoint Home Flex is on our best Level 2 chargers list on its own merits: six selectable output levels from 16 A to 50 A, a mature app, and the largest installed base of any home charger in the US. Polestar naming it as a partner does not change those merits either way.
What the partnership genuinely gives you is a simple purchase path and a single support conversation. What it does not give you is anything the car requires. If your panel is tight, the Emporia Pro's load management is more useful than a partnership. If you have solar, the Enphase unit's 1 A solar tracking is.
| Your situation | Better choice | Why |
|---|---|---|
| Tight electrical panel | Emporia Pro | Whole-home load management with an included energy monitor |
| Rooftop solar | Enphase IQ EV Charger 2 | Adjusts in 1 A increments to absorb surplus solar |
| Very limited wall space | Wallbox Pulsar Plus | Under 8 inches square, the smallest 48 A unit |
| Outdoor install, cold climate | Grizzl-E Classic or Autel | Cast aluminum NEMA 4, or a -40 degF rating |
| Budget is the constraint | EVIQO 48 A | The cheapest genuine 11.5 kW hardwired unit |
| Uncertain electrical future | ChargePoint Home Flex | 16-50 A adjustable in the app — the partner unit's actual strength |
Is 40 amps enough?
150 mi x 0.296 kWh/mi = 44.4 kWh; at 11 kW x 0.9 = 4h 29m; at 9.6 kW x 0.9 = 5h 08m
A 39-minute difference
EPA efficiency figure from the US DOE / EPA fueleconomy.gov service, 2025 Polestar 2 Single Motor (19in), queried October 5, 2026.
On a Polestar 2, 40 A is a sensible compromise if it saves you money on the circuit. On a Polestar 3 Dual Motor with 22-inch wheels, we would take the 48 A.
Connector
Both cars use J1772 for AC charging in North America, so any mainstream home charger plugs straight in. For AC charging at a Tesla Wall Connector or Destination charger you need a NACS-to-J1772 adapter, and on a 48 A car the rating headroom matters.
Our picks for a Polestar
The partner unit, which is genuinely good, and the load-managing alternative for a tight panel.
A house whose panel headroom is uncertain
ChargePoint Home Flex (hardwired, 50 A)
The most adjustable charger on this page: output steps through 16, 24, 32, 40, 48 and 50 A in the app, so one unit fits almost any panel and can be turned up later if you upgrade the service.
#ad Price as of October 5, 2026. How we make money
Most households, and anyone with a tight panel
Emporia Pro Level 2 EV Charger
The best-balanced 48 A charger for a typical US house: full 11.5 kW hardwired, and the only unit at this price that ships with a whole-home energy monitor so its load management is reading your actual panel rather than guessing.
#ad Price as of October 5, 2026. How we make money
A J1772 car on a Tesla Wall Connector or Destination charger
A2Z EV Stellar Plug NACS to J1772 AC Adapter
Rated 80 A / 19.2 kW, which is well above any home charger's output and the margin you want in a part that carries 48 A continuously for eight hours a night.
#ad Price as of October 5, 2026. How we make money
We earn commission on qualifying purchases at no cost to you. Affiliate disclosure.