Plug-in hybrid · 2020–2023
How much it costs to charge the Mercedes-Benz Clase B B 250 e (W247)
10.7 kWh battery. Charging from 20 to 80% puts 6.4 kWh into the battery: see what it costs at home, how long it takes and what you pay at a public charger.
Charging at home
Charging at home from 20 to 80%
On a standard tariff, the time makes no difference: the same price at any hour. On an EV tariff, charge in the off-peak window (23h30 to 5h30; yours are in your tariff details).
| Standard (price cap) £0.2632/kWh, Ofgem price cap unit rate | £1.86 |
| EV tariff, off-peak £0.0760/kWh, 23h30 to 5h30 | £0.54 |
| EV tariff, peak £0.3500/kWh: avoid charging at these times | £2.47 |
| Ofgem price cap £0.2632/kWh, price cap unit rate | £1.86 |
With 7,456 miles a year, always charging at home costs about £618 on the standard tariff and £179 off-peak on an EV tariff: you save £440 a year. Note: on an EV tariff the peak rate is usually higher than the standard rate, so it pays off most if you can also move other usage into the off-peak hours.
Prices including VAT, from the Ofgem price cap and suppliers’ EV tariffs, checked on 2026-10. Includes 10% charging losses.
How long it takes to charge from 20 to 80%
| Charger | Time |
|---|---|
| 3-pin plug (10 A, 2.3 kW) | 3 h 4 min |
| Commando socket or 16 A wallbox (3.7 kW) | 1 h 55 min |
| 7 kW home charger (32 A, 7.4 kW) | 57 min |
| Rapid charger, from 10 to 80% (up to 24 kW) | 31 min |
Approximate times, losses included. On a rapid charger, average power of 60% of the car’s maximum.
Public charging
At a public charger, the price depends on the operator and on your payment method or subscription. With an estimated median price (£0.60/kWh on slow chargers and £0.79/kWh on rapid chargers), charging from 20 to 80% costs about £3.85 on a slow charger and £5.07 on a rapid charger.
Open the mapHow much 62 miles costs
With the official consumption of 17.8 kWh/100 km (on the motorway, it is higher).
Frequently asked questions
How much does it cost to charge the Mercedes-Benz Clase B B 250 e (W247) at home?
Charging from 20 to 80% (6.4 kWh into the battery) costs about £1.86 on the standard tariff and £0.54 off-peak on an EV tariff, VAT and losses included.
When should I charge the Mercedes-Benz Clase B?
On a standard tariff, at any time: the price is the same. On an EV tariff, in the off-peak window (23h30 to 5h30), often less than a third of the standard rate. On Agile (a price every 30 minutes), in the cheapest half hours of the day.
How long does it take to charge the Mercedes-Benz Clase B at home?
From 20 to 80%, about 1 h 55 min on a 3.7 kW socket or wallbox and 57 min on a 7 kW home charger.
How long does it take on a rapid charger?
From 10 to 80%, about 31 min on a charger that delivers the car’s maximum 24 kW. Allow about £5.07 from 20 to 80% at a public charger.
Other Mercedes-Benz Clase B versions
- B 250 e (W247, battery 12,9 kWh usable) 2024–2026 · 12.9 kWh
- B 250 e (W247 restyling) 2023–2024 · 11.5 kWh
Sources of the technical data: www.adac.de · www.km77.com