Mercedes-Benz B250e Electric Drive
Charging cable
Full AC charging speed for your car.
Why this fits your B250e Electric Drive+−
The Mercedes-Benz B250e Electric Drive has a Type 2 inlet and a single-phase 3.7kW onboard charger. A 7.4kW cable already delivers its full AC speed. The 22kW option only helps if your next car charges faster.
Specifications+−
Delivery & returns+−
Free tracked UK delivery on every order. Built to order in the UK and dispatched fast. 30-day no-fuss returns.
Note: B-Class Electric Drive (Tesla-derived drivetrain). Type 2, ~3.7kW single-phase standard (higher-rate OBC option on some cars). No DC rapid. 28kWh.
How long does it take?
Charging
the Mercedes-Benz B250e Electric Drive.
The Mercedes B250e Electric Drive is the commercial name for the W242-generation B-Class BEV, produced from 2015 to 2017 with a Tesla-derived electric drivetrain and a 28kWh battery pack. It was an early mainstream electric option in the Mercedes range, designed for urban and suburban use rather than long-distance touring. All charging is through a Type 2 AC inlet, as there is no DC rapid charging capability on this model.
Charging at home or at an AC charge point requires a Type 2 to Type 2 cable. The B250e's standard onboard charger is rated at around 3.7kW on a single phase, which is slower than most current EVs. Some cars were supplied with a higher-rate optional charger, so it is worth confirming your car's specification. DC rapid charging is not available on any variant.
Estimates based on battery size and charge power. Rapid (DC) times are for a 10 to 80% charge, the way manufacturers quote them. Real-world charging varies with temperature, battery state and the charger itself.
7.4 kW or 22 kW?
Which cable does
the B250e Electric Drive need?
With the standard 3.7kW onboard charger, the B250e draws well below the 7.4kW maximum that a standard home wallbox provides. A 7.4kW Type 2 to Type 2 cable is perfectly matched to this car and will deliver the car's full charge rate without any cable being a limiting factor. There is no reason to choose a 22kW cable, as the car does not support three-phase AC charging in standard specification.
A 5m cable suits most home driveways and public charge points for this car. Because the charging rate is slow, many B250e owners leave the cable plugged in overnight and simply unplug in the morning. If the wallbox position makes a short cable awkward, a 7m lead provides useful extra slack without adding unnecessary bulk.
What does it cost to charge?
Charging the 28kWh battery from empty costs around £2 at an off-peak tariff of roughly 7.5p per kWh, and around £8 at a standard rate of roughly 27p. The slow 3.7kW charge rate means a full charge from empty takes around 8 hours, making overnight charging the most sensible routine. Partial top-ups during the day are equally effective given the modest battery capacity. Check current tariffs, as rates change.
Also for your B250e Electric Drive
Goes well with.
Plug & Cable Holder · Type 2
Wottz Plug and Cable Holder
Carry Bag
Wottz Carry Bag
Dust Cap · Type 2
Wottz Dust Cap
Mercedes-Benz B250e Electric Drive FAQs
Good
questions.
Still not sure? Our team will confirm the right cable for your vehicle.
Contact usWhat charging cable does the Mercedes-Benz B250e Electric Drive need?+−
The Mercedes-Benz B250e Electric Drive has a Type 2 inlet, so it needs a Type 2 to Type 2 cable for UK home and public charging. It charges on single-phase AC at up to 3.7kW.
Can the Mercedes-Benz B250e Electric Drive charge at 22kW?+−
No, the Mercedes-Benz B250e Electric Drive has a single-phase onboard charger limited to 3.7kW, so a 7.4kW cable already delivers its full AC speed. A 22kW cable would only benefit a future car.
What length charging cable should I get?+−
5m suits most home and public charge points. Choose 7.5m or 10m if the charge point is far from your car's charging port or you park on the far side of a bay.
What cable does the Mercedes B250e Electric Drive need?+−
A Type 2 to Type 2 cable. The B250e uses a standard Type 2 AC inlet. The standard onboard charger is rated at around 3.7kW single-phase, so a 7.4kW cable is the right choice for home and public AC charging. There is no DC rapid charging, so all top-ups go through the Type 2 socket.
Can the Mercedes B250e charge faster than 3.7kW?+−
Some B250e cars were fitted with an optional higher-rate onboard charger that supports up to 11kW on three phases. In standard specification the car charges at around 3.7kW on a single phase. If you have the upgraded charger and access to a three-phase supply, a 22kW cable would let it reach the higher rate. Otherwise, a 7.4kW cable covers all realistic use.
How long does the Mercedes B250e take to charge at home?+−
On the standard 3.7kW single-phase charger, the 28kWh battery takes around 7.5 to 8 hours from empty on a home wallbox. A 3-pin granny lead charges at around 2.3kW and extends that to roughly 12 to 13 hours. An overnight charge is the most practical approach for keeping the battery topped up.
Does the Mercedes B250e support DC rapid charging?+−
No. The B250e has no CCS or CHAdeMO port. All charging is done through the Type 2 AC socket. This limits maximum charge speed to whatever the onboard AC charger supports (3.7kW standard, up to 11kW on the optional higher-rate variant) and means the car cannot use rapid motorway chargers.