Vauxhall Frontera Design EV 44kWh
2025 · United Kingdom
- Capacity
- 44 kWh
- Health
- —
- Grade
- Excellent
£3,333
£76/kWh
BYD Dolphin 44.9 kWh battery packs
None listed right now. Set an alert or ask us to find one. We hold your money until the pack arrives.
A Dolphin Active (70 kW) or Boost (130 kW). Comfort and Design cars have the 60.4 kWh pack.
- Payment held until the pack arrives
- 7–14 day inspection window
- Collection arranged for you
44.9 kWh Dolphin packs
None listed
No 44.9 kWh packs listed right now.
Tell us your car and how many you need, and we will look for one for you. We will also tell you as soon as a matching pack is listed.
For storage projects
Packs from other cars with a similar size and the same chemistry, for second-life storage builds. We have not confirmed any of them fits your car, so do not buy one as a replacement.
View & buy
MG MG4 SE RWD 51kWh
2022 · United Kingdom
- Capacity
- 51 kWh
- Health
- —
- Grade
- Great
£1,250
£25/kWh
Need it fitted? Find an EV garage listed for BYD cars.EV repair shops
Can't find the right pack?
Tell us the size. We'll find it.
Reference
BYD Dolphin 44.9 kWh battery facts
The BYD Dolphin 44.9 kWh battery is the smaller Dolphin pack, in Active and Boost cars: LFP Blade cells built straight into the pack with no modules.
- Capacity
- 44.9 kWh rated
- Chemistry
- LFP (lithium iron phosphate)
- Cells
- BYD Blade: long, flat prismatic cells made by BYD
- Construction
- No modules: long Blade cells form the pack
- Trims
- Active (70 kW motor) and Boost (130 kW motor)
- Cars
- Dolphin, sold in the EU from early 2024 and the UK from the third quarter of 2024
Note: BYD gives a rated capacity. No source gives a separate usable figure, so we show the rated one.
Note: One 2025 article gives 44.5 kWh. Every other source, including the same publisher's 2023 article, gives 44.9 kWh.
Each fact is confirmed by two independent sources: BYD's UK and European press material (one source), plus ADAC, electrive and InsideEVs. Facts we could not confirm twice are left out. Checked . Sources
Sources
- BYD UK Media, BYD DOLPHIN leaps into Europe (2023)
- BYD UK Media, BYD DOLPHIN model page (2024)
- BYD Europe, BYD Blade Battery technology page
- InsideEVs, BYD Reveals Ultra-Safe Blade Battery: Pierces It With A Nail (2020)
- ADAC Autokatalog, BYD Dolphin Active (12/23–03/24)
- electrive, BYD launches Dolphin EV in Europe this summer (2023)
- electrive, BYD gears up to introduce the Atto 2 in Europe (2025)
- Car News China, BYD Blade Battery teardown reveals 170-cell pack after 40-hour freeze (2026)
- Frontiers in Mechanical Engineering, Liu, Yang, Huang & Tan, A review of cell-to-body (CTB) battery-structure integration design for electric vehicles (2026)
Questions
Buying a used Dolphin 44.9 kWh pack
Still unsure which pack is right? A specialist can check fitment with you.
Talk to a specialistGo by the trim and the motor. Active (70 kW) and Boost (130 kW) cars have the 44.9 kWh pack. Comfort and Design cars (150 kW) have the 60.4 kWh pack. The Dolphin Surf is a different car with its own packs. Send us a photo of the label and we will check.
Check the car's model, trim and year, and the label on the pack. Send us a photo of the label and we will check.
Sources disagree. A 2026 teardown of a newer Blade pack, built for China, found structural adhesive throughout that made it hard to take apart. A 2026 engineering review describes BYD's design as still serviceable. Ask a BYD specialist before you buy a pack to repair.
You have 7–14 business days to inspect it. Raise it with evidence and the seller is not paid until it is resolved.