In today’s DC fast-charging analysis, we will take a look at the 2025 Mini Countryman SE ALL4 model, which State Of Charge had an opportunity to test in Spring 2025.

The electric Mini offers quite basic DC charging performance, and on many levels, it reminds us of the recently analyzed Nissan Ariya. We would consider it “average”.

Specs

The 2025 Mini Countryman SE ALL4 is a crossover/SUV with a dual-motor, all-wheel drive (AWD) powertrain. The tested version was equipped with stock 18-inch wheels.

The car has a 66.5-kWh low-voltage battery (with 64.7 kWh of usable battery capacity) and an EPA Combined range of 212 miles (206 miles of EPA Highway). State Of Charge’s 70-mph range test returned a slightly higher result of 219.2 miles.

The 2025 Mini Countryman SE ALL4 is equipped with a CCS1 charging port. According to specs, DC fast charging from 10 to 80% state of charge (SOC) takes 29-30 minutes at up to 130 kW.

Charging Curve

We will analyze two charging sessions: the first is from 0 to 100% SOC, and the second is from 10 to 80% SOC.

Both tests were conducted at EVgo chargers rated at up to 350 kW (325 kW in the second test). The charger’s maximum voltage of 950 volts and maximum current of 540 amps were higher than requested by the vehicle, so they did not limit charging performance.

The first graph below presents the charging power curve for the entire 0-100% SOC session. Charging power quickly climbed up to over 120 kW at the beginning. At 13% SOC, the power amounted to 130 kW, while the peak of 131 kW was recorded in the 16-17% SOC window.

The power decreased sharply at 40% SOC (from 125 kW to 108 kW). After stabilization at around 101-102 kW, the power output began decreasing slowly after 51% SOC. Another step in power reduction was noted around 80% SOC, and at 93% SOC.

The data indicates that the most fruitful period of the session — with power equal to or greater than 75% of the maximum value — was from about 1% to 53% SOC. Up to 76% SOC, at least 50% of the maximum power was available. That’s a relatively flat charging curve. The worst part is from 95% SOC (with less than 25% of the maximum power).

The average power in the 10-80% SOC window amounted to 98.5 kW, which is about 0.75 of the peak value.

According to the charger, the car consumed 69.1 kWh of energy (including charging losses).

Now, let’s compare the results with the second charging session (from 10 to 80% SOC). The overall charging curve is very similar. The charging power quickly increases to its maximum value and remains there for quite some time. A gentle power reduction started after 40% SOC, continuing almost to the end of the session (there was a step reduction at about 79% SOC).

The peak value in the 10-80% SOC session amounted to 129 kW. The average power was 100.6 kW, so slightly higher than in the 0-100% SOC session. Charging consistency was even higher at 0.78 (average/peak ratio). The most fruitful period of the second session was from 11 to 56% SOC (with at least 75% of the maximum power).

According to the charger, the car consumed 45.3 kWh of energy (including charging losses).

C-Rate

Assuming that the vehicle has a 66.5-kWh battery (total), its C-rate peaked at 1.97C.

The average in the 10-80% SOC window was 1.48C during the first session and 1.51C during the second session. Anything close to 1C can’t be considered a good result, and we always look for something closer to 2C (or even 3C in top models on the US market).

Info: The C-rate indicates the correlation between the charging power and the battery pack capacity. A value of 1C would mean that the power value in kW is equal to the battery pack capacity in kWh, and that at such a power (current) rate, the battery would be fully recharged in 1 hour. The higher the C-rate, the higher the load on the battery and the faster it charges. A flat 2C would translate to a 30-minute charging session (0-100% SOC).

Charging Time

The full charging session from 0 to 100% SOC took over 64 minutes. However, if we look only at the 10-80% SOC window, then it was a more acceptable 28.5 minutes.

The second session, from 10 to 80% SOC, was a bit quicker and took less than 27 minutes (26:52). That’s a positive outcome considering that the specs promised 29-30 minutes.

The time-based chart reveals that the peak charging power of 120-131 kW was available for roughly 13 minutes during the first session.

During the second session, the maximum power was available for just over 10 minutes, but let’s remember that this time the starting point was 10% SOC instead of 0% SOC.

Sitting at a charger for more than 25-30 minutes does not make much sense, as the power is then too low.

Range Replenishment Rate

Considering the 2025 Mini Countryman SE ALL4’s EPA range of 212 miles, its average range replenishment rate in the 10-80% SOC window of the first session amounted to 5.2 mi/min (148 miles of range replenished). Assuming the 219.2 miles of range from the 70 mph range test, the average would be 5.5 mi/min (153 miles of range replenished).

The most fruitful period is the first 20 minutes of charging. The peak range replenishment rate is roughly six miles per minute of charging (about 60 miles of range added in 10 minutes).

The results are slightly better in the second charging session (from 10 to 80% SOC). The range replenishment rate exceeded seven miles per minute of charging in the first 10 minutes of charging. The average was at 5.5 mi/min (EPA Combined range) and 5.7 mi/min (70-mph range test).

How Long To Add Driving Range

Alternatively, we could ask how long it would take to add a certain number of miles. Let’s start with the first charging session (0-100% SOC). Well, for the first 50 miles, we have to wait less than nine minutes. In 16-17 minutes, we can replenish 100 miles of range.

To add 150 miles of range, one would have to wait 26-27.5 minutes (depending on the considered range). It’s not time-efficient to charge longer because it might take 20 more minutes to increase the range by an additional 50 miles (to 200 miles total).

Again, the results for the second charging session (from 10 to 80% SOC) are slightly better. Just seven minutes were enough to replenish 50 miles of range, and after about 15 minutes of charging, one can go 100 miles.

DC Fast-Charging Matrix

Here is a summary of the entire charging session in a single image — the DC fast-charging matrix. It lists several main parameters: time, average charging power, the number of replenished SOC percentage points, kWh of battery capacity, and miles of EPA combined range added between certain starting and final SOC points.

The color map is mostly green (light/dark) because the charging curve was relatively flat. The orange and red boxes concern the late part of the charging session.

Please remember that the results might differ depending on a variety of factors, including the starting point of the session (which could shift the charging curve), charger, temperatures (ambient, that of the charger and its cable, and battery), and car (exact version, age, battery state-of-health, and software version).

Session #1: 0-100% SOC

Session #2: 10-80% SOC

Summary

The 2025 Mini Countryman SE ALL4 offers average DC fast-charging capabilities. The results are basic, just like its range of 200+ miles.

State Of Charge’s tests revealed a peak power of 130-131 kW (in line with specs). The average within the 10-80% SOC window was 98.5 kW (full session) and 100.6 kW (the second session). The charging curve is relatively flat.

The optimal/most fruitful window was between the start and 53-56% SOC (the first 15-20 minutes of charging).

The peak C-rate of almost 2C and about 1.5C in the 10-80% SOC window does not impress and leaves room for improvement (to at least 2C average).

The full 0-100% SOC charging session took 64 minutes, but the more useful metric is the 10-80% SOC charging time. In the first charging session, it was 28.5 minutes, and in the second session, it was under 27 minutes. That’s better than the 29-30 minutes we saw in the specs.

The 2025 Mini Countryman SE ALL4 can replenish 100 miles of EPA Combined range in roughly 15 minutes when starting at 10% SOC. That’s probably acceptable for this type of vehicle, which is not designed for long-distance travel. The results for the version with optional 19-inch wheels might be slightly worse, as it has a bit lower range.

The 2025 Mini Countryman SE ALL4 has a CCS1 charging port. As of October 16, 2025, the Mini brand EVs do not have access to the Tesla Supercharging network in North America. A NACS-to-CCS1 adapter would be required to use non-Tesla NACS (SAE J3400) chargers.

As far as we know, there will be no 2026 model year of the Mini Countryman SE ALL4. Time will tell whether the next Mini EVs will charge faster.

Check more of our DC fast-charging analyses here.