BYD vs Tesla Charging Speed: AC, DC and Peak kW Compared Across Models
On the cars most people buy today, Tesla charges faster. The Model 3 and Model Y peak at 250 kW on Superchargers, while BYD's Australian range peaks at 150 kW on the Seal and Sealion 7. At home the two are identical, since both support 11 kW three-phase AC charging. The picture flips at the top end: BYD's Super e-Platform uses a 1,000-volt architecture capable of megawatt charging, adding around 400 km in five minutes, which is well beyond anything Tesla offers today.
Charging Speed by Model
| Measurement | AC (home) | DC peak |
|---|---|---|
| BYD Dolphin | 7 or 11 kW | 60 to 88 kW |
| BYD Atto 3 | 11 kW | 88 kW |
| BYD Seal | 11 kW | 150 kW |
| BYD Sealion 7 | 7 or 11 kW | 150 kW |
| BYD Sealion 8 | 7 kW | 40 or 74 kW |
| Tesla Model 3 | 11 kW | 250 kW |
| Tesla Model Y | 11 kW | 250 kW |
How EV Charging Speed Is Measured
Charging power is measured in kilowatts, and the number quoted by manufacturers is almost always the peak. That peak is held only briefly.
What actually determines how long you wait is the charging curve: how power tapers as the battery fills. This is why the 10 to 80 percent time is the useful benchmark, not the headline kW figure.
Three things set the ceiling. Battery architecture voltage, the cell chemistry's tolerance for current, and the charger's own output.
Home Charging: The 7 kW vs 11 kW Myth
A common claim is that BYD charges at 7 kW while Tesla manages 11 kW. That is not right, and it comes from confusing single-phase and three-phase supply.
The Sealion 7 owner's manual states plainly that the car supports 7 kW single-phase charging and 11 kW three-phase charging. The Atto 3 and Seal also accept 11 kW.
- Single-phase home supply: Around 7 kW, for both brands
- Three-phase home supply: 11 kW for a Tesla Model 3, and 11 kW for most BYD models
- The real variable: Your home's electrical supply, not the badge on the car
Overnight, the difference is academic. Both cars will be full by morning. If you are setting up a home charger, our practical walkthrough of getting home charging right from day one covers cable choice and supply.
DC Fast Charging Peak kW by Model
This is where Tesla's current advantage is real and measurable.
- Tesla Model 3 and Model Y: 250 kW
- BYD Seal and Sealion 7: 150 kW
- BYD Atto 3: 88 kW. Our guide to which charger types the Atto 3 accepts explains what that means at a public station
- BYD Dolphin: 60 kW on the entry grade, 88 kW on the Premium
On paper Tesla holds a 100 kW advantage over BYD's fastest Australian model.
Charging Curve: 10 to 80 Percent
Peak power tells you little. Here is roughly what the wait looks like in practice.
- Tesla Model 3 or Model Y: About 25 to 27 minutes
- BYD Seal: Around 30 to 37 minutes
- BYD Sealion 7: Roughly 40 to 45 minutes on a 150 kW charger
- BYD Atto 3: Around 40 minutes
Tesla's curve is also flatter, holding high power for longer before tapering. Our detailed breakdown of what actually affects your Sealion 7's charging speed covers the settings and conditions that shift these numbers.
BYD Flash Charging: 1,000 Volts, Not 800
One correction worth making. BYD's flash charging does not use an 800-volt architecture, which is what Hyundai and XPeng use. BYD went further.
The Super e-Platform is the first mass-produced full-domain 1,000-volt architecture for passenger cars, paired with a redesigned Blade Battery rated to 10C.
- Peak power: 1,000 kW, a full megawatt, at 1,000 volts and 1,000 amps
- Speed: Around 400 km of range added in five minutes
- Newer stations: Up to 1,500 kW per stall, taking a compatible car from 10 to 70 percent in about five minutes
- Dual guns: No single connector handles a megawatt, so the cars use two charge ports simultaneously
- First models: The Han L and Tang L, with the technology now spreading to mainstream models in China
BYD has deployed over 5,700 flash charging stations in China and opened its first in Europe. Full technical details are published by BYD. This technology is not yet available on Australian-delivered models.
Tesla Supercharger V3 and V4
Tesla's network remains the benchmark for reliability and integration.
- V3 Superchargers: 250 kW peak
- V4 hardware: Capable of up to 500 kW with the V4 cabinet
- The catch: Most Tesla passenger cars still cap at 250 kW, so V4's full output is unused. Only the Cybertruck accepts 500 kW
- Integration: Navigation routes you through stops and preconditions the battery automatically
That preconditioning is a quiet but significant advantage, since a cold pack cannot accept full power.
CCS2 Network vs Tesla Network
BYD models in Australia use the CCS2 standard, giving access to Chargefox, Evie, NRMA, and BP Pulse. Coverage has improved considerably, though reliability across a patchwork of operators still varies.
Tesla's Supercharger network is purpose-built, tightly integrated, and consistently reliable, particularly on regional routes. For interstate driving this matters more than any peak kW figure.
Cold Weather Impact on Charging
Every EV charges more slowly when the battery is cold, and lithium iron phosphate chemistry is more sensitive to it than nickel-based cells.
Both brands address this with battery preheating. The Sealion 7 manual confirms a preheating function that conditions the battery in low temperatures so it can accept a proper charge, and BYD's scheduled charging integrates with it.
Tesla's advantage is automation. Navigate to a Supercharger and the car preconditions without you thinking about it. On a BYD, you may need to plan ahead in winter.
Which Brand Charges Faster in Practice?
For the cars you can buy in Australia today, Tesla. A Model 3 will leave a Sealion 7 at a fast charger by roughly 15 minutes on a 10 to 80 percent stop, helped by a higher peak, a flatter curve, and automatic preconditioning.
That advantage applies only at public DC chargers. At home, where most owners do the overwhelming majority of their charging, the two are identical on the same electrical supply.
Looking forward, BYD's megawatt flash charging is a generational leap beyond anything Tesla currently sells. The question is when it reaches Australian showrooms.
Common Mistakes
- Judging by peak kW: A 250 kW peak is held for moments. The 10 to 80 percent time is what you actually experience
- Believing BYD is limited to 7 kW at home: Most models accept 11 kW on three-phase supply, the same as a Tesla
- Calling BYD's flash charging 800 volt: It is a 1,000-volt architecture, a step above the 800-volt systems used by rivals
- Assuming V4 means 500 kW for your Tesla: Most Tesla cars still cap at 250 kW regardless of the charger
- Fast charging daily: Reserve DC for road trips. Home AC charging is cheaper and gentler
- Ignoring a cold battery: Charging speed collapses without preconditioning, whatever the badge
