Mercedes-Benz B-Class Electric Drive
Charging cable
Charges about 50% faster on 22 kW public posts than a 7.4 kW cable.
Why this fits your B-Class Electric Drive+−
The Mercedes-Benz B-Class Electric Drive has a Type 2 inlet and a three-phase 11kW onboard charger. The 22kW cable carries its full 11kW on three-phase chargers. A 7.4kW cable would cap it. On a single-phase home wallbox both cables charge at the same 7.4kW.
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: Sold as B250e; up to 11kW AC in EU spec (3.7kW on some cars); no DC
How long does it take?
Charging
the Mercedes-Benz B-Class Electric Drive.
The Mercedes-Benz B-Class Electric Drive (also sold as the B250e) is a compact family electric hatchback produced from 2015 to 2017 in the W242 generation. It used a Tesla-sourced drivetrain and a 28kWh battery, making it one of the more capable BEVs of its era for short to medium range driving. There is no CCS or CHAdeMO port for DC rapid charging, so all charging is done through the Type 2 AC inlet.
For home and public AC charging the cable you supply is a Type 2 to Type 2 lead. The onboard AC charger on the B-Class Electric Drive was offered in different output variants depending on specification: some cars have a 3.7kW single-phase charger as standard, while the higher-rate onboard charger option supports up to 11kW on three phases. If you are unsure which your car has, check the original order specification or owner documentation before choosing a cable.
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 B-Class Electric Drive need?
If your B-Class Electric Drive has the standard 3.7kW onboard charger, a 7.4kW Type 2 to Type 2 cable is more than adequate and will deliver the car's full charge rate. There is no benefit to a 22kW cable with this charger. If your car has the optional higher-rate 11kW onboard charger and you have access to a three-phase supply, a 22kW cable lets the car charge at its faster rate, making a meaningful difference to charge time on the 28kWh battery.
Because this is an older car, many owners will be charging at home on a standard single-phase wallbox. In that case, even the 11kW charger option is capped at 7.4kW, and a 7.4kW cable covers all home-charging needs. A 5m cable handles most driveways; opt for 7m if the charge point is set back from where you usually park.
What does it cost to charge?
Charging the 28kWh battery from empty costs around £2 at an off-peak rate of roughly 7.5p per kWh, and around £8 at a standard rate of roughly 27p. At a 3.7kW charge rate the battery takes a number of hours to replenish, so overnight charging is the most practical approach. Owners with the higher-rate onboard charger can top up considerably faster where three-phase supply is available. Check current tariffs, as rates change.
Also for your B-Class 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 B-Class 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 B-Class Electric Drive need?+−
The Mercedes-Benz B-Class 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 up to three-phase AC at up to 11kW.
Can the Mercedes-Benz B-Class Electric Drive charge at 22kW?+−
Yes, the Mercedes-Benz B-Class Electric Drive has a three-phase onboard charger, so with a 22kW cable and a three-phase supply it can charge at up to 11kW.
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 B-Class Electric Drive need?+−
A Type 2 to Type 2 cable. All AC charging uses the Type 2 inlet. If your car has the standard 3.7kW onboard charger, a 7.4kW cable is the right choice. If it has the optional higher-rate charger and you use three-phase supply, a 22kW cable lets it reach up to 11kW. There is no DC rapid charging on this model.
How do I know what charge rate my B-Class Electric Drive supports?+−
The standard onboard charger supports 3.7kW single-phase. An optional higher-rate charger was available that supports up to 11kW on three phases. Check your original order confirmation, the car's onboard menu, or the V5C/service documentation to identify which version you have. When in doubt, a 7.4kW cable works with either variant on a home single-phase setup.
How long does the B-Class Electric Drive take to charge?+−
With the 3.7kW standard charger, the 28kWh battery takes around 8 hours from empty, making it an overnight charge. With the optional 11kW charger on a three-phase supply, that drops to roughly 2.5 to 3 hours. On a standard single-phase 7.4kW wallbox, the 11kW variant is limited to 7.4kW and takes around 4 hours.
Can the Mercedes B-Class Electric Drive use a rapid charger?+−
No. The B-Class Electric Drive has no CCS or CHAdeMO port and cannot rapid charge on DC. All charging is done through the Type 2 AC socket. This means charge speed depends entirely on the onboard charger fitted to your car and the AC supply available.