BYD Sealion 7 Battery Health Calculator
Calculate your BYD Sealion 7's remaining battery capacity and check it against original specifications.
BYD Sealion 7 — At a Glance
Battery Capacity
82.5–91.3 kWh
Chemistry
LFP
WLTP Range
283–323 mi
Real-World Range
230–275 mi
Max DC Charging
230 kW
10–80% DC Time
~24 min
Power
308 bhp (230 kW)
0–62 mph
6.7s
Kerb Weight
2,210 kg
Thermal Mgmt
Active liquid cooling
On Sale Since
2025
Variants
3 (2025)
Enter your BYD Sealion 7 energy data below to calculate your battery's current health.
Your readings
- 1
From the on-screen energy app — a recent average is fine.
- 2
The range your car is estimating right now.
- 3
The battery percentage shown on the display.
Your vehicle
Battery health
85.9 kWh usable of 91 kWh when new · 5.9% capacity lost
Healthy — typical for a well-kept Sealion 7. Add your odometer to compare against the fleet.
Add your odometer above to see how you compare to the fleet.
Sealion 7 estimated average
These curves are aggregated, owner-reported degradation data — not official manufacturer figures. Your own result above is the number that matters.
Wh/mi or Wh/km
On the central rotating touchscreen, open "Vehicle" → "Trip Info" or "Energy". Average consumption in Wh/km or Wh/mi is shown in the trip data.
Estimated Range
Estimated range is displayed prominently on the instrument cluster (behind the steering wheel) and on the main screen dashboard widget.
Battery Percentage
Battery percentage is shown on the instrument cluster next to the range and on the main screen status bar.
BYD Sealion 7 battery degradation — what to expect
3 variants
In our database
We track 3 variants of the BYD Sealion 7 with usable capacity data for each.
82.5–91.3 kWh
Capacity range
Usable battery capacity varies by trim and model year — from 82.5 to 91.3 kWh.
8 years
Typical warranty
Most EV manufacturers offer an 8-year battery warranty with a minimum capacity retention guarantee.
Battery degradation varies by chemistry, climate, charging habits, and usage patterns. Use the calculator above to check your BYD Sealion 7's current capacity against its original specification.
BYD Sealion 7 battery capacity by variant
These are the usable (not gross) capacity figures used by our calculator.
| Variant | Years | Capacity (kWh) |
|---|---|---|
| 82.5 kWh RWD Comfort | 2025 | 82.5 |
| 82.5 kWh AWD Design | 2025 | 82.5 |
| 91.3 kWh AWD Excellence | 2025 | 91.3 |
Values may vary slightly by market, software version, and production batch.
About the BYD Sealion 7
The BYD Sealion 7 is BYD's direct challenger to the Tesla Model Y, positioned as a mid-size electric SUV with competitive pricing, strong range, and the brand's proven Blade Battery technology. It arrives in Europe and other markets as BYD continues its aggressive global expansion.
Using BYD's LFP (lithium iron phosphate) Blade Battery in either 82.5 kWh or 91.3 kWh configurations, the Sealion 7 offers a WLTP range of up to 323 miles. The Blade Battery's cell-to-pack design is renowned for its safety — BYD famously demonstrated it withstanding a nail penetration test without catching fire. LFP chemistry also means the battery can be charged to 100% daily without accelerating degradation.
DC charging peaks at 230 kW, delivering a 10-to-80% charge in around 24 minutes. This is a significant step up from earlier BYD models and makes the Sealion 7 competitive with the best in the segment. The interior features BYD's rotating 15.6-inch central screen and a driver display, with a clean, minimalist design.
Available in rear-wheel drive and all-wheel drive configurations, the Sealion 7 offers a comfortable ride with well-judged suspension tuning. Build quality has improved markedly over earlier BYD models, and the pricing — typically undercutting the Model Y — makes it an increasingly popular choice.
What the press thinks
Early reviews position the Sealion 7 as a serious Tesla Model Y alternative. The Blade Battery's safety credentials and LFP longevity are praised, along with competitive pricing and improved charging speed. Critics note the infotainment software still lags behind Tesla's, and the brand lacks an established charging network.
BYD Sealion 7 — Frequently Asked Questions
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