Estimating e-scooter range realistically

The number on the spec sheet is a best case, not your route

You read "up to 90 km" and plan your week around it. Then the battery indicator hits the red zone sooner than expected. That doesn't mean the scooter is faulty or the shop lied. The range figure describes conditions you practically never create in everyday life.

Manufacturer range figures come from ideal conditions: a light person on the deck, a flat route, constant low speed, mild temperature, correct tyre pressure, no luggage. Every deviation costs kilometres. In Switzerland you almost always deviate, because hardly any everyday route is flat.

The honest comparison figure is rarely printed large on the box: battery capacity in watt-hours. How to calculate it and how to estimate your own range from it is explained further down.

How the figure comes about

Range isn't a property of the scooter but the result of a calculation: available energy in the battery divided by energy used per kilometre. The manufacturer can set the first number, not the second. So for the second number they pick conditions that keep it small.

That's not fraud, it's a marketing number. It tells you what the battery delivers in the best case. It doesn't tell you how far you'll get to work tomorrow. The key point: unlike cars, where a standardised test procedure is required, there is no binding measurement standard for e-scooters. No manufacturer in our range states the test weight, test speed or route profile for its range figure. So the numbers from two brands aren't comparable with each other, and that's exactly why further down we calculate with watt-hours instead of kilometres.

The seven factors that determine your range

1. Your weight

Every kilo has to be accelerated and lifted uphill. If you're much heavier than the manufacturer's test rider, you'll ride shorter distances. It's the factor with the biggest influence and the one you can change least.

2. Load

Backpack, shopping, tools: luggage works exactly like body weight. A handlebar bag only shifts the weight, it doesn't cancel it.

3. Topography

Going uphill, the motor turns electricity into height. On a climb it draws several times the power it needs on the flat. Downhill you get some of it back if your scooter has regenerative braking, but never all of it. If you live in Zurich, Lausanne or St. Gallen, plan with much less range than someone on a flat route between station and office.

4. Speed

Air resistance grows disproportionately with speed. That's why the range figures of the fast models need so much explanation: a scooter that does up to 85 km/h and up to 120 km according to the manufacturer doesn't do both at the same time. The 120 km come from a leisurely pace.

That's why the CH models limited to 20 km/h get closer to their figure than the performance models: they always ride in the range where the measurement is taken.

5. Temperature

Lithium-ion cells release less energy in the cold. In winter the display often shows less right after starting, even though the battery is full. Some of it comes back once the battery warms up. How strong the effect is depends on the cell type, and none of the manufacturers in our range gives a figure for it. A percentage here would be a guess, so we don't give one. The practical part is what matters: expect less distance in winter, plan the ride home accordingly and put the scooter in a frost-free room to charge.

6. Tyre pressure

An underinflated tyre flexes with every turn of the wheel and eats energy. Tyre pressure is the only adjustment that costs you nothing and takes five minutes to check. You'll find the target value on the tyre sidewall or in your model's manual.

7. Riding style

Full acceleration, braking, full acceleration again: every stop throws away the energy that was in your speed. Rolling steadily gives you more kilometres than any accessory decision. The riding mode also matters if your scooter has several.

Why amp-hours mislead you

Spec sheets show two values: voltage in volts and charge in amp-hours. Only together do they give energy:

• Volts × amp-hours = watt-hours
• 48V × 15Ah = 720 Wh
• 52V × 22.5Ah = 1170 Wh
• 60V × 38Ah = 2280 Wh

The mistake happens when comparing across models. A 60V battery with 20Ah comes to 1200 Wh. A 52V battery with 23Ah has more amp-hours, but only about 1196 Wh, practically the same. If you only look at Ah, you think one is much bigger. If you look at Wh, you see a draw.

So it's worth doing the maths yourself for each model before you compare prices.

The models sorted by battery capacity

The last column is pure arithmetic: battery capacity divided by the range promised by the manufacturer. It's not a measured value, but it shows how economically the manufacturer had to calculate to reach its number. A low value means an optimistic figure.

Two things stand out. The affordable KuKirin G2 VMP needs the least energy per kilometre on paper to reach its 65 km. That's the most optimistic figure in the list. The Teverun Blade Mini Pro eKFV, on the other hand, promises fewer kilometres with more battery, so it calculates conservatively. On top of that, the G2 VMP currently can't be ordered. So don't count on it if you want to ride soon.

The Thunder 3 shows how wide a range can be: between 120 and 170 km there's a 50 km difference with the same battery. That's the difference between rolling slowly and riding fast, as stated by the manufacturer itself.

Conversion guide: how to estimate your own range

Instead of believing the manufacturer's number, work out your own consumption. It takes one ride.

1. Calculate the capacity. Volts times amp-hours. For the Blade Mini Ultra eKFV: 52 × 30 = 1560 Wh.
2. Do a reference ride. Start fully charged, ride your normal route at your normal speed until the display shows a clear value. Note the kilometres and the battery used as shown. A bar or percentage display is only an estimate and isn't linear on every model.
3. Roughly calculate consumption. Estimated watt-hours used divided by kilometres ridden. Example: after 30 km the display shows about half. Half of 1560 Wh is 780 Wh on paper. 780 divided by 30 gives an approximate 26 Wh per km.
4. Extrapolate the range. Capacity divided by your consumption. 1560 divided by 26 gives 60 km. That's your number, not the one on the box.
5. Subtract a reserve. Don't plan on the last kilometres. An empty battery means pushing, and on some models the electronics switch off earlier to protect the cells.

The value from step 3 suits you better than a brochure number, because your weight, your hills and your riding style are already included. But it remains an estimate as long as you're working with bars or a percentage display. Repeat the measurement in winter, and you'll have two usable planning values for two seasons.

As a guide to where your value should land: the manufacturer figures in the table above lie between 13 and 24 Wh per km. If your own measurement is clearly above that, you're riding faster, heavier or hillier than the brochure. That's normal, but it also means you'll never reach the manufacturer's range. We don't give a general rule of thumb across all models here, because without a measurement on your scooter it would be worthless.

If your display only shows rough bars, the calculation gets inaccurate. In that case ride a repeatable route and use the kilometres ridden down to a clearly defined remaining level as your practical planning figure. Whether your display can show a more precise reading in percent or volts is in the manual. Voltage can give extra orientation, but without the battery's discharge curve it can't be translated directly into an exact percentage either.

How much battery do you need?

Calculate with your route, not the maximum possible. A commute of 8 km one way makes 16 km a day. Even with a generous reserve, the smallest battery in the list is enough for that, and you won't charge to 100 percent every day.

It gets interesting if you want to go two days without a socket or your route has elevation gain. Then capacity pays off. For road use in Switzerland you have three models, and they differ mainly in the battery:

The Blade Mini Pro eKFV with 1170 Wh for 949 CHF covers commuting distances and weighs 31.2 kg. The Blade Mini Ultra eKFV brings 1560 Wh for 1319 CHF, so a third more energy. The Fighter Mini Pro eKFV leads with 1602 Wh and Samsung cells for 1929 CHF. According to the manufacturer, all three are limited to 20 km/h, with 10 percent tolerance.

A big battery isn't automatically the better choice

Who a big battery isn't worth it for: if you regularly have to carry the scooter, take it on the train or haul it into a third-floor flat. Then the lighter model wins, even if you charge more often.

Your next step

Measure your route honestly once, with elevation, there and back. Calculate the watt-hours of the models you're considering and compare them with your needs instead of the range figure. If you already have a scooter, do the reference ride from step 2 and note your consumption value. From then on you plan with a number that fits your everyday life much better.