Written for overseas passenger and heavy-cargo three-wheeler fleets and conversion plants. We break down purchase CapEx, the daily fuel-versus-electricity gap (OpEx), the hidden cost of replacing lead-acid every year, and residual value — so the whole-life ROI is settled with numbers rather than claims.
verified5-year commercial warranty with residual-value buy-back · 100% performance commitment · the full model is available as an Excel workbook
Specification notice:Reference values only — batch and duty-cycle variation applies. Contact us for detailed specifications.
No paper specifications. TIANQIU systems rest on more than 80 million kilometres of commercial operation across 12 countries — evidence that stands up to a CFO.
A 60V 100Ah LiFePO4 system fully replaced the original 175cc petrol engine and the degraded lead-acid bank. Electricity cost per vehicle came in 28,000 PHP per month below petrol, and the full conversion investment broke even in month 7.2.
28,000 PHP saved per vehicle per month; break-even at month 7.2On the Mombasa–Nairobi corridor, carrying 800kg over extreme washboard surfaces, energy cost per 100km fell to 22% of the diesel and petrol baseline. With engine filters and oil servicing eliminated, daily net operating profit rose 43%.
22% of the fuel bill; daily net profit +43%Automotive-grade A-grade high-energy LiFePO4 cells cycled at 1C charge and discharge inside a 45°C thermal chamber. After 3,500 consecutive cycles, state of health remained above 80.4% — the equivalent of six years of service for a fleet charging once a day.
SOH > 80.4% after 3,500 cycles, equal to 6 yearsFor regional distributors and fleet contractors, 20GP and 40HQ ex-works shipping spreads dangerous-goods ocean freight and clearance fees across the whole container, cutting the landed cost per watt-hour by 31.8% and releasing distributor margin.
Landed cost per Wh down 31.8% (FOB / CIF)Why do the cheapest lead-acid and second-life packs destroy fleet assets? Data, not opinion — three years of real expenditure side by side.
| Financial and duty-cycle metric | Conventional lead-acid gel bank | Cheap second-life / salvaged lithium | TIANQIU automotive LiFePO4 (Tier 1) |
|---|---|---|---|
| Initial purchase cost (CapEx per vehicle) | $320 ~ $450 (very low entry) | $680 ~ $850 (mid-low price) | $1,150 ~ $1,380 (standardised assembly) |
| 100% DOD cycle life | 300 ~ 450 cycles (about 9-12 months) | 500 ~ 800 cycles (cell spread widens fast) | 3,500+ cycles (six years without overhaul) |
| Pack replacements in 3 years | 3 ~ 4 complete new banks required | 2 ~ 3 replacements, or single bad blocks | 0 replacements (one investment covers the whole cycle) |
| Fleet daily uptime | 72.4% (8-10h slow charge, range halves late in life) | 81.5% (frequent BMS protection, hard to diagnose) | 99.2% (1.5h fast charge, all-day rotation) |
| Energy plus maintenance cost per km | $0.048 / km (dead weight drags range) | $0.032 / km (wide cell dispersion) | $0.012 / km (60kg lighter) |
| Three-year TCO per vehicle | $3,180 (eats the margin) | $2,450 (high-risk trap) | $1,520 (52.2% net saving) |
Basis: 90km per day, local commercial electricity at $0.12/kWh, lead-acid scrap credit included — the standard international fleet model. Every assumption can be re-run against your own tariffs in the simulator below.
Specification notice:The figures above are engineering reference values. They may differ with production batch, configuration and actual duty cycle, and the percentages for life, efficiency, availability and coverage are engineering estimates and bench references. Contact us for the detailed specification sheet.
Move the sliders on fleet size and energy tariffs and watch CapEx and OpEx payback move in real time. Inputs cover fleet size, daily distance per vehicle, the incumbent powertrain (petrol Bajaj/TVS or lead-acid bank), and your local petrol and electricity prices.
At the default 30-vehicle fleet running 95km per vehicle per day, the engine returns a fleet payback of 6.4 months (including the complete battery pack and charger), first-year net cash saving of $41,200 after charging cost, and a three-year cumulative ROI of 368%. Recommended engineering match: TIANQIU 60V 105Ah (full-day passenger version). Any result can be converted into a container price enquiry.
The financial model only answers whether the conversion pays. Vehicle calibration, service life and export cost are what actually gets a project built.
Built for 800–1,500kg industrial and agricultural haulage — the same duty cycle behind the 22% Kenya energy comparison, calibrated to your corridor gradients and payload.
See the engineering drawingsarrow_forward
Cycle life is the most sensitive assumption in any TCO model. This whitepaper publishes the capacity-retention and internal-resistance curves after 3,500 cycles at 1C.
Read the whitepaperarrow_forward
How does full-container shipping cut landed cost per Wh by 31.8%? The cost structure and 20GP / 40HQ price tiers are published line by line.
Model the export costarrow_forwardWritten for fleet investment decision-makers, export contractors and banks underwriting green transport finance.
Send your vehicle model and fleet size, and our senior motive-power engineering team will return a multi-currency cost model and container price schedule within 24 hours on working days.
Specification notice:The figures above are engineering reference values. They may differ with production batch, configuration and actual duty cycle, and the percentages for life, efficiency, availability and coverage are engineering estimates and bench references. Contact us for the detailed specification sheet.
Vehicle data, fleet size and operating costs you submit are used only for this assessment and are covered by a mutual NDA on request.
