BYD Seal U
Charging cable
Charges about 50% faster on 22 kW public posts than a 7.4 kW cable.
Why this fits your Seal U+−
The BYD Seal U 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.
Which BYD Seal U versions does it fit?+
This cable fits every BYD Seal U, because they all share the same Type 2 charging inlet. That includes:
- BYD Seal U Boost
- BYD Seal U Comfort
- BYD Seal U Design
Whichever Seal U trim you drive, it is the same cable, so you can order with confidence.
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: Seal U (Song Plus). BEV 71.8/87kWh Blade LFP, DC up to 140kW; DM-i PHEV variant also sold. AC up to 11kW.
How long does it take?
Charging
the BYD Seal U.
The BYD Seal U is a full-size electric SUV that launched in the UK in 2024, aimed squarely at family buyers who want genuine boot space and a long-range capable battery. It is sold with two Blade LFP battery options: a 71.8kWh pack on entry trims and an 87kWh pack on higher-spec versions. Both use a Type 2 inlet for AC and a CCS socket for rapid DC charging.
Day-to-day charging at home or on a public AC post uses a Type 2 to Type 2 cable that you supply yourself. The Seal U's onboard AC charger accepts up to 11kW on three phases. Rapid DC charging at up to 140kW is handled by the tethered cable at the charger, so you do not need to carry anything extra for motorway stops.
Select your battery above. On AC both packs charge through the same 11kW onboard charger, so the larger 87kWh simply takes proportionally longer to fill. 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 Seal U need?
The Seal U's 11kW onboard charger runs on three phases, but three-phase home supplies are rare in the UK. On the single-phase supplies found in most British houses, your wallbox caps at 7.4kW regardless of what cable is connected. A 7.4kW Type 2 to Type 2 lead is therefore the practical choice for the overwhelming majority of Seal U owners charging at home, delivering the full speed a standard domestic wallbox can provide.
Where a three-phase cable does make sense is on 22kW public AC chargers or in a property that genuinely has three-phase power coming in. At those points the Seal U can draw its full 11kW, and a 22kW-rated cable will let it do so. On a single-phase wallbox at home, though, a 22kW cable charges at exactly the same speed as a 7.4kW one, so the only thing it adds is cost.
A 5m cable handles most home driveways comfortably. If your parking spot is some distance from the wallbox, or you tend to park with the nose closest to the garage, a 7m or 10m lead removes any awkward reaching.
What does it cost to charge?
The 87kWh pack costs roughly £6.50 to top up from empty on an off-peak tariff running at around 7.5p per kWh, rising to around £23.50 at the standard 27p rate. The 71.8kWh version comes to roughly £5.50 off-peak and around £19 at the standard rate. LFP chemistry means you can routinely charge to 100% without stressing the battery, making those overnight fill-ups work hard. Public rapid charging is a different story cost-wise, often 45p to 80p per kWh, so it suits planned stops rather than daily use. Tariffs vary, so check what you pay.
Also for your Seal U
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
BYD Seal U FAQs
Good
questions.
Still not sure? Our team will confirm the right cable for your vehicle.
Contact usWhat 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.
Does the BYD Seal U support V2L?+−
Yes. The BYD Seal U supports vehicle-to-load (V2L), so a V2L discharge cable lets you run tools, appliances and devices straight from the battery through the Type 2 inlet, at up to 3.6kW.
What charging cable does the BYD Seal U need?+−
A Type 2 to Type 2 cable. The Seal U uses a standard Type 2 AC inlet, which matches the connector on UK home wallboxes and public AC posts. For home charging on a single-phase supply, a 7.4kW rated cable is sufficient and the sensible choice. Only step up to a three-phase cable if you have three-phase power at home or regularly use 22kW public AC chargers.
Can the BYD Seal U charge at 22kW?+−
No. The Seal U's onboard AC charger is limited to 11kW on three phases. A 22kW-rated cable makes no difference to that ceiling. On a typical UK single-phase home supply the car charges at 7.4kW, set by the supply rather than the cable. You would only see 11kW on a three-phase supply or a 22kW public AC charger, and even then the car cannot exceed 11kW.
How long does a BYD Seal U take to charge at home?+−
On a 7.4kW home wallbox the 87kWh version takes roughly 12 hours from empty to full, while the 71.8kWh pack takes around 10 hours. Both sit comfortably within an overnight window. Because the Seal U uses LFP chemistry, there is no penalty for charging to 100% routinely, which helps you start each day with maximum range. A three-pin socket is far slower at around 2.3kW and is best treated as an emergency option only.
Does the BYD Seal U come with a charging cable?+−
BYD typically includes a granny charger with new cars for use with a domestic three-pin socket. For everyday home use a dedicated Type 2 to Type 2 cable and a home wallbox are far more practical, giving you a full overnight charge. The Seal U's 140kW DC rapid charging uses the tethered cable at the public charger, so no additional cable is needed for those stops.