Instant-delivery e-moped in city service
Fitted across the Swift Logistics fleet with 60V 45Ah packs, absorbing all-weather stop-start duty and high-load express delivery.
Europe · city instant logisticsExport fleets have now covered over 48,000,000 kilometresAIS-156 · UN38.3 · ISO9001:2015 certified plantHS Code 8507600000 · packing code UN 3480
Lightweight high-rate two-wheeler packs and swap modules(48V / 60V / 72V)
More than 150km a day, frequent 1C fast charging and constant vibration — so why do fleets refuse cheap pouch or storage cells? TIANQIU supplies hard-shell automotive cells, 1C high-rate charge and discharge with a full charge in 70 minutes, and native swap-cabinet protocols, with OEM shell marking, custom BMS bus and per-vehicle matching.
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Single-hand swap18.5 kg
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High-rate charge1C / 70 min to full
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Dual enclosureIP67 aluminium + flame-retardant ABS
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Heavy-duty cycles3,500 @ ≥80%
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Standard sample pack5–7 days
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Powertrain warranty5 years / 3,500 cycles
verifiedOEM shell marking, custom BMS bus and per-vehicle matching · register whitepaper and C/C++ SDK provided
verifiedField Proven Reliability
Typical figures for high-frequency swap duty
From swap-cabinet connector life to active thermal-runaway detection, every figure reflects exported fleet duty and production validation.
public48,000,000+ kmVerified fleet kilometres in serviceAcross Southeast Asian monsoon, African hot gravel roads and European instant cold chain
battery_charging_full>10,000Swap connector insertion cyclesFully compatible with Gogoro and China Tower cabinet door standards, with no arcing at high cycle counts
bolt250 msEarly over-temperature / over-current cut-offAutomotive bidirectional active/passive balancing chipset with multi-protocol OTA firmware updates
fact_check< 0.3%Whole-life failure rateAcross a 500-unit instant-delivery e-moped fleet conversion
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.
analyticsField Operations & Laboratory Validation
Field operations and bench development up close
Deployment records spanning Southeast Asian monsoon flooding, hot African gravel roads and European instant cold-chain logistics.
precision_manufacturingDeployment & Bench Validation
Four engineering findings proven on vehicles and benches
Each finding maps to a specific fleet operating scenario rather than a headline specification.
Smart quick-release swap cabinet in field use
Fully compatible with Gogoro and China Tower cabinet door standards; high-frequency connectors last more than 10,000 insertions without arcing.
Swap cabinet · 30-second exchangeSmart BMS and active thermal-runaway bench
Automotive bidirectional balancing chipset cuts over-temperature and over-current events 250ms early, with multi-protocol OTA firmware delivery.
Laboratory · CAN/RS485 benchFlame-retardant housing and laser-welded busbar
Fully automated laser cold-welded copper-aluminium composite busbars eliminate loose-screw fire risk and pass a 30G three-axis shock fatigue test.
Fireproof · all-aluminium anti-vibrationtuneStandardized Fleet Sizing Chart
Motor power, duty cycle and battery bay sizing chart
Match motor power band, physical battery bay dimensions and typical duty-cycle range to lock in the standard model and voltage platform.
Reference figures for Shenzhen / Changzhou production
| Motor power band | Suitable vehicle type | Standard voltage / nominal capacity | Discharge current (continuous / transient) | Standard battery bay (L×W×H) | Typical duty-cycle range | Recommended model |
|---|---|---|---|---|---|---|
| 800W – 1200W | City commuter e-moped / standard delivery step-through | 48V 24Ah / 30Ah | 30A continuous / 60A transient (10s) | 185 × 145 × 280 mm | 60 – 80 km at a steady 35km/h | VT-2W4824 |
| 1500W – 2000W | High-speed instant-delivery moped / inter-district highway moped | 60V 30Ah / 45Ah | 45A continuous / 90A transient (15s) | 215 × 165 × 310 mm | 90 – 120 km with frequent stops at 45km/h | VT-2W6045 |
| 3000W – 5000W | Heavy crossover bike / African Boda Boda passenger-cargo / extreme gradient model | 72V 45Ah / 60Ah | 65A continuous / 150A transient limit (30s) | 255 × 190 × 340 mm | 120 – 160 km fully loaded at 180kg, uphill | VT-2W7260 |
All discharge rates are based on automotive-grade A-class LiFePO4 / NMC high-rate traction cells. Anti-condensation breather valves and self-heating film are available as options.
HS Code 8507600000 · dangerous goods packing code UN 3480
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.
fact_checkTechnical Specifications
Two-wheeler motive and swap module technical specification
Complete engineering figures covering voltage platforms, nominal capacity, continuous and transient discharge, enclosure, thermal management and cycle life.
48V / 60V / 72V platforms
| Engineering metric | Specification / parameter | Engineering note |
|---|---|---|
| Voltage platforms | 48V / 60V / 72V | Covers city commuter e-mopeds, instant-delivery highway mopeds and heavy crossover bikes |
| Nominal capacity | 24Ah / 30Ah / 45Ah / 60Ah | Mapped to the VT-2W4824, VT-2W6045 and VT-2W7260 standard models |
| Continuous discharge current | 30A / 45A / 65A | Graded against the motor power band rather than one model covering everything |
| Transient discharge current | 60A (10s) / 90A (15s) / 150A (30s) | Covers loaded pull-away, inter-district overtaking and extreme gradient inrush |
| Charge / discharge rate | 1C high-rate, 0→100% in 70 minutes | Selected cells carry a fast-ion conductor coating on the anode; roughly 70% charge in 30 minutes |
| Enclosure and sealing | IP67 drawn aluminium / flame-retardant ABS dual shell | Passes a 30G three-axis shock fatigue test; anti-condensation valve and self-heating film optional |
| Thermal management | Above 60℃ the BMS derates; at 65℃ it cuts the MOS protection loop | Automotive LiFePO4 self-decomposition temperature is 650℃, far above the 210℃ of NMC |
| Cycle life | 3,500 heavy-duty deep cycles (capacity retention ≥80%) | After 2,500 1C/1C cycles, retention still holds above 80% |
| Swap and communication | CAN 2.0B / RS485 / UART · 4G Cat.1 + GPS | Compatible with Gogoro and China Tower cabinet buses; register whitepaper and C/C++ SDK provided |
| Anti-theft lock-out | One-click cloud lock of the BMS, cutting the discharge loop | Independent onboard 4G Cat.1 / GPS module with a coin-cell backup supply |
OEM shell marking, custom BMS bus and per-vehicle matching are supported. Standard sample packs start from 2–5 units, and first orders can run 50–100 units as a pilot build.
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.
straightenEngineering Feasibility & Safety Guide
Lead-acid replacement vs upgrade retrofit vs smart swap: three routes compared
As e-mopeds spread and petrol two-wheelers are converted overseas, fleets face tight dimensional limits, electrical protocol barriers and the safety risk of constant vibration.
straighten1. Measuring the bay: in-place replacement and anti-vibration clearance
Moving from heavy lead-acid to lithium frees up 40% of the space, but ignore dynamic shock and the pack shell will fatigue and crack faster.
Three-dimensional tolerance: leave 8–12mm of clearance on all sides and fit high-damping EVA foam so nothing touches hard.
Bottom exit vs top exit: where water collects in the under-seat bucket, use a top exit and an IP67 aviation connector so pooled water cannot conduct across the terminals.
Three-dimensional tolerance: leave 8–12mm of clearance on all sides and fit high-damping EVA foam so nothing touches hard.
Bottom exit vs top exit: where water collects in the under-seat bucket, use a top exit and an IP67 aviation connector so pooled water cannot conduct across the terminals.
cable2. Controller low-voltage cut-off and dashboard voltage signal definition
Fitting lithium often produces a "fuel-gauge dive" or a sudden lock-out under acceleration, because the controller discharge curve and the telemetry do not line up.
Cut-off calibration: lead-acid cuts at 52.5V on a 60V system, while 16S LiFePO4 cuts at 44.0V — the original controller low-voltage threshold must be reflashed to match.
Bidirectional bus integration: TIANQIU ships CAN 2.0B / RS485 single-wire dashboard protocol as standard, carrying accurate SOC and fault codes straight to the display.
Cut-off calibration: lead-acid cuts at 52.5V on a 60V system, while 16S LiFePO4 cuts at 44.0V — the original controller low-voltage threshold must be reflashed to match.
Bidirectional bus integration: TIANQIU ships CAN 2.0B / RS485 single-wire dashboard protocol as standard, carrying accurate SOC and fault codes straight to the display.
warning3. Why storage pouch cells puncture and catch fire under two-wheeler vibration
The export market is full of cheap pouch cells sold as equivalent (pulled from packs or downgraded from home storage), and for a fleet that is an asset bomb.
Aluminium laminate wears fast: continuous 5–50Hz road vibration work-hardens pouch tab welds into dry joints and arcs, and abrasion breaches the film until electrolyte leaks.
What TIANQIU specifies: only hard-shell steel cylindrical (21700/32140) or prismatic aluminium automotive cells, for rigid physical protection.
Aluminium laminate wears fast: continuous 5–50Hz road vibration work-hardens pouch tab welds into dry joints and arcs, and abrasion breaches the film until electrolyte leaks.
What TIANQIU specifies: only hard-shell steel cylindrical (21700/32140) or prismatic aluminium automotive cells, for rigid physical protection.
calculateFleet ROI Calculator
500 instant-delivery e-mopeds: converting from petrol / lead-acid to TIANQIU lithium
Energy cost per vehicle falls by more than $2.80 a day, whole-life failure rate held below 0.3%, and the swap-infrastructure conversion pays back within 6–8 months.
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-62% maintenance spend per kilometre
Across a 500-unit instant-delivery fleet, spend per kilometre falls 62% after conversion.
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+300% cell service life
Compared with lead-acid and downgraded home-storage cells, usable cycle count rises by 300%.
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Swap infrastructure paid back in 6–8 months
Energy cost per vehicle falls by more than $2.80 a day and whole-life failure rate held below 0.3%.
helpExpert Technical Q&A
Two-wheeler fleet and overseas procurement FAQ
Answers on swap-cabinet protocols, high-temperature thermal runaway, anti-theft tracking and multi-country customs documentation.
Which communication protocols do TIANQIU swap batteries support? Can they integrate with our in-house swap cabinet?expand_more
Yes. Our smart BMS natively integrates CAN 2.0B, RS485 and standard UART hardware interfaces, and connects directly to China Tower, Yiqi, Gogoro and mainstream overseas IoT cabinet buses. We provide the complete register whitepaper and C/C++ SDK, and assign a dedicated firmware engineer to support cabinet handshaking, stepped charge-current delivery and fault-code commissioning.
Summer ambient in the Middle East, South Asia and West Africa reaches 45–50°C. How does the pack avoid thermal runaway?expand_more
For extreme-heat regions we use automotive-grade LiFePO4 cells, whose thermal self-decomposition temperature is 650°C — far better than the 210°C of NMC. Internally the module uses aviation-grade thermally conductive potting plus a drawn aluminium heat-dissipating shell, with four-point NTC temperature sensing. If any cell exceeds 60°C the BMS actively derates the discharge current, and at 65°C it immediately cuts the MOS protection loop, removing any fire or explosion risk.
How do you stop packs from being stripped or stolen while a fleet is operating?expand_more
We offer fleets a "smart cloud electronic lock" integration: the pack contains an independent 4G Cat.1 / GPS module with a coin-cell backup supply. The management console shows live location tracks, and if a pack is removed without authorisation, is not returned to a cabinet, or leaves the operating geofence, the cloud can lock the BMS in one click and cut the discharge loop — turning the pack into a brick that can neither charge nor discharge, which strongly discourages black-market resale.
What compliance documents are needed to ship a full container to Europe, Southeast Asia or the Americas?expand_more
The whole TIANQIU motive range has passed the UN 38.3 vibration and drop tests, and we hold MSDS documentation, sea and air transport conditions appraisal reports, and the customs-filed outbound dangerous-goods packaging appraisal certificate. For India we support AIS-156 Part 2 test remediation; for Europe we provide CE-RED, RoHS and EU Battery Passport due-diligence declaration data.
How much does 1C high-rate charging shorten pack life? Can a rider top up in 30–40 minutes?expand_more
Our selected cells are designed for fast charging, with a fast-ion conductor coating on the anode surface. At 1C — for example 30A into a 30Ah pack — roughly 70% of charge goes in within 30 minutes and a full charge completes in about 70 minutes. After 2,500 1C/1C cycles, capacity retention still holds above 80%, far better than a typical 0.5C storage cell under fast charging.
What is the MOQ? Do you support samples and small fleet pilot runs?expand_more
We take overseas vehicle-fit validation seriously: standard sample packs start from 2–5 units with a standard shell and commissioning harness. Once the pilot is validated, first orders can run 50–100 units. Full-container purchases (two-wheeler swap packs: a 20GP takes roughly 600–800 units; these packs are far smaller than three-wheeler motive packs, so a container holds far more) include custom paint colour, laser-etched customer branding and stepped ex-works FOB pricing.
handymanEngineering Team · 48h Layout Response
Request a two-wheeler sample evaluation and swap-cabinet protocol SDK
A dedicated engineering team issues a two-wheeler electrical and dimensional topology study within 48 hours. Send your chassis battery bay dimensions, motor and controller parameters, or swap-cabinet interface standard, and a senior TIANQIU hardware architect will work directly with your engineering team.
- 5–7 days to dispatch a standard sample pack
- 100% loaded ageing on every unit before dispatch
- 5 years / 3,500 cycles global powertrain warranty
mailExport desk: sales@erickshawtrikebattery.com
callWhatsApp / global hotline: +86-755-8888-9900
directions_boatContainer consolidation within 48 hours from Shenzhen, Ningbo or Qingdao
handymanHardware architect works directly on cabinet handshaking and stepped charge currentdescriptionCommunication register whitepaper and C/C++ SDK providedinventory_2Standard sample packs from 2–5 units · pilot builds of 50–100
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.
lockProtected by NDA
Battery bay dimensions, controller parameters and swap-cabinet interface data you submit stay strictly confidential. A mutual NDA can be signed first.