How to Read an EV Truck Spec Sheet: The Twelve Numbers That Actually Predict Fleet Performance
An electric truck spec sheet can carry forty lines of data, and most buyers negotiate over two of them — price and range — while the numbers that actually decide fleet economics sit unread in the middle. Diesel spec literacy took fleet managers decades to build; electric spec literacy can be compressed into twelve numbers, because a battery-electric drivetrain is a simpler machine with cleaner cause-and-effect. This is the reading guide our engineering team wishes every procurement officer arrived with: what each number means, which ones predict what, and the specific traps we see tender comparisons fall into. Use it against our own model pages — the TE8L electric tractor, KTA1 electric dump truck or the cargo line — or against any competitor's sheet.
Group One: The Range Numbers (Read Together, Never Alone)
- 1. Nominal range (km) — the headline figure, measured under a fixed test cycle (usually China's GB or a UN-equivalent at partial load). Treat it as an upper bound under mild conditions, not a planning number.
- 2. Usable pack capacity (kWh) — nominal capacity times the usable window the BMS allows (typically 90-95%). This is the real energy tank. A "600 kWh" pack with a 90% window holds 540 usable kWh.
- 3. Consumption at your load (kWh/km) — the number that converts capacity into range, and the one spec sheets advertise most misleadingly. Demand the consumption figure at your GCW and terrain, not the flat-road partial-load figure. Loaded quarry duty runs 1.5-1.9 kWh/km on an 8x4; the brochure's 1.2 is a different mission.
The planning arithmetic: usable capacity ÷ loaded consumption = honest range. 540 kWh ÷ 1.7 kWh/km = 318 km on the mission that matters. That single division, done per mission profile, is worth more than any test-cycle range figure on the sheet.
Group Two: The Duty Numbers (What the Chassis Can Actually Do)
- 4. GCW / GVW rating (t) — gross combination or vehicle weight. On a tractor this is the whole story of revenue per trip: a 49 t GCW 4x2 and a 120 t GCW heavy-haul unit are different businesses.
- 5. Peak vs continuous motor power (kW) — peak power (282-510 kW across the Dongfeng line) sells brochures; continuous power sustains gradients. A truck rated 410 kW peak but 240 kW continuous will slow on a 6% grade at GCW that its "410 kW" implied it could hold.
- 6. Peak torque (Nm) and at what speed — electric motors deliver peak torque from ~0 rpm, which is the spec advantage diesel never matches: it is why an electric tipper pulls away from a standstill at full GCW without clutch drama. Compare torque curves, not just the peak figure.
- 7. Gradeability at GCW (%) — the direct answer to "can it climb my route". A quarry truck that cannot hold your haul-road ramp at legal speed is a write-off of a purchase regardless of price.
Group Three: The Battery Life Numbers (Where the Money Actually Is)
| Number | What it means | What to demand |
|---|
| 8. Cycle life (cycles to X% SOH) | How many full-equivalent cycles before capacity fades to the stated floor | 4,000+ cycles to ≥70% SOH, in writing |
| 9. Warranty structure (years/cycles/SOH floor) | The legal version of the above | 8 years / 4,500 cycles / 70-80% SOH floor, with the claim procedure named |
| 10. Chemistry & cell supplier | LFP vs NMC changes safety, cycle life and fire behaviour | Named cell supplier (e.g., CATL) and chemistry (LFP) — not "lithium-ion" |
Why group three outranks everything: the pack is 30-40% of the truck's value, and these three lines determine whether that value survives the finance term. A cheap truck with an anonymous pack and a vague warranty is expensive in a way the purchase price hides.
Group Four: The Charging Numbers (The Hidden Infrastructure Cost)
- 11. Max DC charge rate and charge curve (kW, 10-80% time) — the charge rate decides your depot capex class (120/240/360 kW hardware) and the 10-80% time decides your mid-shift opportunity windows. Ask for the curve, not the peak: a truck advertising "360 kW" that tapers to 180 kW above 60% charge has a different depot math than the headline implies.
- 12. Charging standard & swap compatibility — GB/T, CCS or MCS-track hardware, and whether the pack is swap-capable (the option that changes both capex structure and utilisation ceiling later). A fleet that buys swap-ready trucks keeps an option open that non-swap trucks cannot retrofit cheaply.
Reading a Comparison Like an Engineer
When we sit in tender evaluations, the fastest way to expose a weak sheet is the two-line test: (1) divide usable capacity by the loaded consumption at the tender's stated mission — if the honest range is below the mission's daily distance plus a 20% reserve, the truck is mispriced for the job no matter its brochure; (2) check that the continuous power and gradeability numbers survive the route's worst kilometre — a single unclimbable ramp voids the truck's economics on that corridor. Then read the warranty group against the finance term: a five-year lease against an eight-year/4,500-cycle CATL warranty leaves residual value on the table; the same lease against an anonymous two-year pack warranty embeds an unpriced risk. Our quotation package includes every number in this article per model, mission-profiled — because the buyers who ask for the twelve numbers are the buyers whose fleets run, and the ones who don't are the ones whose diesel experience we end up translating for at year two. Bring the twelve numbers to your next comparison; the sales meetings get shorter and the fleet decisions get better.
Bringing the Twelve Numbers to Your Next Purchase
The buyer who arrives at a comparison with the twelve numbers structured — whether against our own line-up like the KT5J electric cargo truck or any competitor's sheet — controls the meeting. The compression we recommend:
- Demand the mission-profiled numbers: consumption at your load and gradient, charge curve to 80%, continuous power at your worst ramp — the three requests that separate engineered sheets from marketing ones.
- Run the honest-range division: usable capacity ÷ loaded consumption, per route — the single calculation that exposes most range claims.
- Read the warranty against the finance term: years, cycles, SOH floor and the claim procedure — the three lines that determine whether the pack's value survives the loan.
- Name the cell supplier: a CATL-branded LFP pack with serialised data is a bankable asset; an anonymous "lithium-ion" line is an unpriced risk — the second-life economics in our battery piece depend on exactly this documentation.
- Check market-specific duty context: the same truck runs different numbers in Jakarta's humidity than in Almaty's winter — our country pages, such as the Indonesia electric truck market, carry the local adjustments that make the twelve numbers locally honest.
Spec literacy is a two-hour investment that pays on every truck a fleet ever buys — and the vendors who resist the twelve questions are answering one of them involuntarily.
Ready to electrify your fleet? Contact Shaanxi Fenghan Trading — authorized Dongfeng EV truck exporter. WhatsApp: +86 153 1943 1311 | Email: sales@fenghan-trade.com | dongfengevtrucks.com
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