BYD Sealion 8 Battery Specs: kWh, Range and Charging
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The BYD Sealion 8 is a plug-in hybrid, so it pairs a petrol engine with an LFP Blade Battery. There are two versions. The front-wheel-drive DM-i uses a 54 Ah Blade Battery, around 19 kWh, for up to 103 km of electric range, while the all-wheel-drive DM-p uses a larger 78.4 Ah Blade Battery, around 35.6 kWh, for up to 152 km. Both use BYD's safe lithium iron phosphate chemistry and can be charged to 100 percent every day.
BYD Sealion 8 Battery at a Glance
| Measurement | DM-i (FWD) | DM-p (AWD) |
|---|---|---|
| Battery type | LFP Blade | LFP Blade |
| Rated capacity | 54 Ah | 78.4 Ah |
| Usable energy (approx) | ~19 kWh | ~35.6 kWh |
| Electric range (NEDC) | Up to 103 km | Up to 152 km |
| DC charging | 40 kW | 74 kW |
| AC charging | 7 kW | 7 kW |
What Battery Does the BYD Sealion 8 Use?
The Sealion 8 is not a pure EV. It is a Dual Mode plug-in hybrid, combining a 1.5-litre petrol engine with an electric drive system and a high-voltage battery. Like the Shark 6, it lets you switch between EV and HEV driving modes.
Both versions use BYD's own lithium iron phosphate Blade Battery, the same safe and durable chemistry found across the BYD range. The difference between them is size, which is why electric range and charging speed vary. To understand the chemistry itself, see our explainer on how the BYD Blade Battery works.
Sealion 8 Battery Specs: DM-i vs DM-p
The Sealion 8 comes in two configurations, each with a different battery:
- DM-i (front-wheel drive): A 54 Ah Blade Battery, roughly 19 kWh of usable energy. This is the efficiency-focused version, badged Dynamic in some markets.
- DM-p (all-wheel drive): A larger 78.4 Ah Blade Battery, roughly 35.6 kWh. This is the performance version, adding a rear motor for all-wheel drive and up to 359 kW of combined power.
The rated capacity figures of 54 Ah and 78.4 Ah are taken directly from the Sealion 8 owner's manual. The kWh figures are the approximate usable energy reported for the Australian market, which the manual itself does not list in kWh.
Electric Range and Charging
Because the DM-p has a much larger battery, it travels further on electricity and charges faster:
- DM-i electric range: Up to 103 km on the NEDC cycle, or roughly 80 km in real-world driving
- DM-p electric range: Up to 152 km on the NEDC cycle, or roughly 120 km in real-world driving
- DC fast charging: 40 kW on the DM-i, or 74 kW on the DM-p
- AC charging: 7 kW on both versions
For most owners, the electric range covers daily commuting, with the petrol engine reserved for longer trips. That is the core appeal of BYD's plug-in hybrid approach, which our guide to how BYD's DM-i plug-in hybrid system works explains in full.
Why the LFP Blade Battery Matters
The Sealion 8's lithium iron phosphate Blade Battery brings several practical benefits:
- Safety: LFP chemistry is highly stable and resists thermal runaway, a core BYD strength
- Longevity: LFP cells tolerate many more charge cycles than other chemistries
- Daily full charging: Unlike some EVs, you can charge an LFP battery to 100 percent every day without harming it
- V2L: The Sealion 8 includes Vehicle-to-Load, letting you power appliances or tools from the battery
The Shark 6 shares this same EV and HEV switching and LFP foundation, as covered in our guide to every BYD Shark 6 specification.
Common Mistakes
- Treating it like a pure EV: The Sealion 8 is a plug-in hybrid, so it always has a petrol engine as backup
- Applying the 20 to 80 percent rule: That guidance is for other battery chemistries. LFP batteries are happy charged to 100 percent daily
- Assuming both versions share a battery: The DM-i and DM-p use different-sized batteries with different ranges
- Confusing NEDC and real-world range: Real-world electric range is lower than the NEDC figure
Frequently Asked Questions
What battery is in the BYD Sealion 8?
An LFP Blade Battery. The DM-i has a 54 Ah pack and the DM-p a larger 78.4 Ah pack, both lithium iron phosphate.
How big is the Sealion 8 battery in kWh?
Around 19 kWh for the DM-i and around 35.6 kWh for the DM-p, based on Australian market figures.
What is the electric range?
Up to 103 km for the DM-i and up to 152 km for the DM-p on the NEDC cycle, with real-world figures lower.
Can I charge the Sealion 8 battery to 100 percent?
Yes. Its LFP chemistry is designed for daily full charging without harm.
How fast does it charge?
DC charging is 40 kW on the DM-i and 74 kW on the DM-p, with 7 kW AC charging on both.
The BYD Sealion 8's battery specs are straightforward once you know it is a plug-in hybrid. The front-wheel-drive DM-i carries a 54 Ah Blade Battery for around 103 km of electric range, while the all-wheel-drive DM-p steps up to a 78.4 Ah pack for up to 152 km and faster charging. Both rely on BYD's safe, long-lasting LFP chemistry that you can charge fully every day.