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CATL TECTRANS II
CATL sells TECTRANS II on total cost, not on the battery: 12 years and 1.5 million km with 70 % capacity left, 96 % round-trip efficiency, and 0.6 t more payload for the same energy because the pack is lighter. For a fleet the two figures that move the business case are the payload and the 25-minute megawatt charge; the energy price of a swap, and the price of the pack itself, are still unpublished.
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General 5 / 8
| ModelWritten TECTRANS II or Tectrans Ⅱ; the first TECTRANS family was shown in 2024 | TECTRANS II | ↗ ↗ |
|---|---|---|
| What it isNot a single pack but a platform of standardised packs the truck maker combines | Modular traction battery platform for battery-electric commercial vehicles: heavy-duty trucks, medium-duty trucks and buses | ↗ ↗ |
| FormPack, module, rack, cabinet or container | Standardised packs, in several housing formats | ↗ ↗ |
| AnnouncedPress day of IAA TRANSPORTATION 2026 | 14 September 2026, Hanover | ↗ ↗ |
| IAA Transportation 2026Hall and stand not given in any of the releases read | Launched at the show, Hanover, 14-20 September 2026 | ↗ ↗ |
| Availability in EuropeNo start of production, no delivery date and no first customer published | not published | |
| List priceNot published | not published | |
| WarrantyNo warranty published. CATL gives a design service life instead: 12 years, 1.5 million km, 70 % capacity left (see Energy and power) | not published |
Energy and power 3 / 10
| Capacity, grossNot published. Capacity follows from how many standardised packs the truck maker fits | not published | |
|---|---|---|
| Capacity, usableNot published | not published | |
| VoltageNot published | not published | |
| Charge powerCATL says megawatt-level fast charging but gives no kW or A figure | not published | |
| Discharge powerNot published | not published | |
| Charge rateNot published | not published | |
| Charge timeTo 80 % on megawatt-level charging; CATL does not say from what state of charge | 25 min | ↗ ↗ ↗ |
| CyclesNot published as a cycle count; given as 1.5 million km over 12 years with 70 % capacity left | not published | |
| EfficiencyRound-trip efficiency, which CATL credits to a full-tab, low-impedance cell | 96 % | ↗ ↗ ↗ |
| LifeDesign service life for the heavy-duty truck configuration, together with 1.5 million km and 70 % capacity retention. A separate 15-year corrosion rating is given for coastal and cold regions | 12 years | ↗ ↗ ↗ |
Cells and build 4 / 8
| ChemistryNot published. electrive writes that the platform is expected to carry both LFP and NMC cells, which CATL has not confirmed | not published | |
|---|---|---|
| Cell formatCATL's own wording; prismatic, pouch or cylindrical is not stated | Full-tab, low-impedance cell | ↗ ↗ |
| Cell supplierCATL makes its own cells | CATL | ↗ |
| ArchitecturePublished structural figures for the enclosure: up to 250 kN lateral crush resistance, 1,000 J bottom-plate impact protection, a steel top cover that takes a 180 kg adult 10,000 times without deforming, and a 15-year corrosion rating | Modular: standardised packs combined in different numbers, in an extruded-aluminium enclosure, with standard interfaces for e-axle and central-drive layouts | ↗ ↗ ↗ |
| Energy density, by massCATL calls this about 13 % above the industry average, worth roughly 0.6 t more payload at the same capacity | 170 Wh/kg | ↗ ↗ ↗ |
| Energy density, by volumeNot published | not published | |
| MassNot published | not published | |
| DimensionsNot published | not published |
Thermal and safety 0 / 6
| CoolingNot published | not published | |
|---|---|---|
| Operating temperatureNot published as a range; CATL gives a 15-year corrosion rating for coastal and cold regions | not published | |
| ProtectionNot published | not published | |
| StandardsUN 38.3, R100, IEC 62619 and the like are not named in the launch material | not published | |
| Thermal runaway containmentNot published. The safety claims CATL does make are mechanical: crush, impact and corrosion (see Architecture) | not published | |
| Battery managementNot published | not published |
In a truck 3 / 6
| Which trucks use itNo truck maker has been named for TECTRANS II. CATL says more than 2 million commercial vehicles worldwide run on its batteries and that it held 44 % of the Chinese commercial-vehicle battery market in the first half of 2026 | not published | |
|---|---|---|
| MountingCATL claims a truck maker can cut development time by 50 % and R&D cost by 60-70 % by building on the platform | Underbody or roof, in several housing formats; fits both e-axle and central-drive layouts | ↗ ↗ ↗ |
| Battery swappingThe platform switches between plug-in charging and swapping. CATL announced a European swapping network with Octopus Energy and signed a letter of intent with DHL Group covering swapping systems, storage and ultra-fast charging on Green Freight Corridors | yes | ↗ ↗ |
| Range it gives a truckCATL's top figure, for a heavy truck with the full number of packs. No test cycle and no vehicle weight named | 1000 km | ↗ ↗ ↗ |
| Second lifeNot published for this platform; the DHL letter of intent mentions stationary storage | not published | |
| RecyclingNot published | not published |
Company 3 / 4
Where these figures come from
- CATL via PR Newswire, 14 September 2026: CATL Launches TECTRANS II at IAA Transportation 2026 to Accelerate Global Commercial Vehicle Electrification
- electrive, 16 September 2026: CATL unveils truck battery with up to 1,000 km range
- Automotive World, 15 September 2026: CATL launches Tectrans II battery platform at IAA 2026
- CarNewsChina, 15 September 2026: CATL unveils Tectrans II at IAA Transportation 2026: megawatt charging for commercial vehicles
- IAA TRANSPORTATION 2026, Hanover, 15-20 September 2026 (press day 14 September)
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