BYD Sealion 7 Battery Replacement Phuket | 12V & Blade Battery Guide
BYD Sealion 7 is BYD’s new flagship SUV, launching in Thailand 2025 as a 4.8m mid-size SUV with 82.5 kWh Blade Battery, AWD dual-motor 530hp, and premium positioning. Sealion 7 targets Phuket buyers who want a premium BYD with long-distance touring capability.
BYD Sealion 7 Battery Specs
Main Traction Battery (Blade Battery)
- Type: LFP Blade Battery (industry-leading fire safety)
- Capacity: 82.5 kWh
- Range: 540 km (AWD) / 610 km (RWD) WLTP
- Voltage: 400V (newer trims support 800V)
- DC Fast Charging: Up to 230 kW (10-80% in 24 mins)
- Warranty: 8 years / 160,000 km
12V Auxiliary Battery
- Type: LFP Auxiliary Battery (NEW tech — not AGM!)
- Location: Under front hood
- Life in Phuket: 3-5 years (more durable than AGM)
Sealion 7 vs Sealion 6 / Atto 3
| Model | Main Battery | 12V Battery | Range |
|---|---|---|---|
| Sealion 7 (2025) | 82.5 kWh Blade | LFP 12V | 540-610 km |
| Sealion 6 (2024) | 18.3 kWh (PHEV) | AGM 12V | 1,200 km combined |
| Atto 3 | 49.92/60.48 kWh | AGM 12V | 410-480 km |
Common Sealion 7 12V Issues
- New LFP 12V tech — requires specific OEM replacement
- DiPilot 100 ADAS drains 12V when parked
- OTA updates wear 12V faster
- Parked 10+ days = wake-up failure
Sealion 7 12V Battery Replacement Price in Phuket
| Item | Price |
|---|---|
| LFP 12V battery BYD OEM | ฿2,900-3,800 |
| Installation + BMS Reset | FREE |
| Travel (city) | FREE |
| Warranty | 1 year |
BYD Service in Phuket
EV Phuket is Phuket’s #1 BYD specialist — we have BYD-specific BMS reset tools and stock the new LFP 12V batteries (rare in regular battery shops).
📞 Call EV Phuket
- Phone: 098-168-9907
- LINE: @evphuket
- 24/7 service
- 20-30 minute arrival