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  • Powerful Electric Car Conversion Kit for 10.5m Bus School RMHD3900 Duel Motor Model with VCU Battery Complete Kit with AC Motor
  • Powerful Electric Car Conversion Kit for 10.5m Bus School RMHD3900 Duel Motor Model with VCU Battery Complete Kit with AC Motor
  • Powerful Electric Car Conversion Kit for 10.5m Bus School RMHD3900 Duel Motor Model with VCU Battery Complete Kit with AC Motor
  • Powerful Electric Car Conversion Kit for 10.5m Bus School RMHD3900 Duel Motor Model with VCU Battery Complete Kit with AC Motor
  • Powerful Electric Car Conversion Kit for 10.5m Bus School RMHD3900 Duel Motor Model with VCU Battery Complete Kit with AC Motor
  • Powerful Electric Car Conversion Kit for 10.5m Bus School RMHD3900 Duel Motor Model with VCU Battery Complete Kit with AC Motor
Powerful Electric Car Conversion Kit for 10.5m Bus School RMHD3900 Duel Motor Model with VCU Battery Complete Kit with AC Motor

Powerful Electric Car Conversion Kit for 10.5m Bus School RMHD3900 Duel Motor Model with VCU Battery Complete Kit with AC Motor

  • 2 - 99 Sets
    $42,410
  • >= 100 Sets
    $23,860

Customization:

Customized logo（Min.Order: 1000 pieces）
Customized packaging（Min.Order: 1000 pieces）
Graphic customization（Min.Order: 1000 pieces）
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Powerful Electric Car Conversion Kit for 10.5m Bus School RMHD3900 Duel Motor Model with VCU Battery Complete Kit with AC Motor

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Electric Conversion System: Enables seamless retrofitting of 10.5m school buses into zero-emission electric vehicles using duel AC PMSM motors (IE4 efficiency) and a VCU-integrated battery system.
  • High-Performance Motor: Features a Permanent Magnet Synchronous Motor (PMSM) with IE4 energy efficiency, delivering smooth acceleration, quiet operation, and optimal power distribution for daily student transportation.

Key features

  • 1. Material Technology: High-Density Lithium Battery System

    • With the RMHD3900’s lithium-ion battery system, you can achieve longer driving ranges compared to traditional lead-acid batteries*, thanks to its high energy density and lightweight design. The durable, safety-certified batteries ensure reliable performance in frequent start-stop school routes.

  • 2. Interactive Design: Advanced VCU Control System

    • With the integrated Vehicle Control Unit (VCU), you can optimize energy distribution and motor performance in real time, enabling smoother acceleration and precise power management compared to manual systems*. The VCU also enhances safety through automated fault detection.

  • 3. Performance Parameters: IE4 PMSM Motors for Efficiency

    • With dual IE4 Permanent Magnet Synchronous Motors (PMSM), you can reduce energy consumption by up to 20% compared to IE3 motors*, delivering high torque and quiet operation for seamless school bus operations. The motors are designed for durability in continuous use.

  • 4. Scenario Solutions: Dual Motor Reliability for School Routes

    • With duel motor architecture, you can ensure uninterrupted operation for daily school transportation needs, even in challenging conditions like inclines or heavy passenger loads. This setup outperforms single-motor systems in maintaining consistent speed and power*.

  • 5. Certification Standards: IE4 Efficiency Compliance

    • With IE4 (Super Premium Efficiency) certification, you can meet stringent energy efficiency regulations while lowering operational costs. This exceeds the standards of IE3 motors, making it ideal for eco-conscious fleets*.

Product details

Powerful Electric Car Conversion Kit for 10.5m Bus School RMHD3900 Duel Motor Model with VCU Battery Complete Kit with AC Motor

The RMHD3900 Electric School Bus Conversion Kit is a high-performance solution designed for 10.5m school buses, featuring dual AC Permanent Magnet Synchronous Motors (PMSM) with IE4 premium efficiency. This kit includes a complete VCU Battery System, ensuring seamless integration for reliable, eco-friendly transportation.

Technical specifications

FeatureSpecificationApplication Scenario
Motor TypeDual AC PMSM MotorsDelivering smooth acceleration for school bus routes
Efficiency ClassIE4 Premium EfficiencyReducing energy consumption in long daily commutes
Battery SystemLithium-ion with VCU IntegrationSupporting extended range for multi-stop routes
Torque Output800 Nm per motor (dual total 1,600 Nm)Ensuring hill-climbing capability and heavy load stability
Control SystemAdvanced VCU with BMSOptimizing battery health and real-time performance monitoring

Customization guide

Adjustable parameters include motor power output (to match route demands), battery capacity (for extended range), and VCU control algorithms (for specialized safety protocols). Ideal for schools requiring tailored solutions for urban, hilly, or high-capacity routes.

Get inspired

Transform your school bus into an eco-friendly powerhouse with the RMHD3900 Conversion Kit. With its quiet operation and zero emissions, students enjoy a safer, healthier ride while schools reduce operational costs.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Motor Power Output150 kW+20% (180 kW)+40% (210 kW)*
Battery Capacity200 kWh250 kWh300 kWh
Efficiency RatingIE4 StandardIE4+ EnhancedIE4 Pro (25% lower energy loss)
Range200 km250 km300 km

Supplier's note

  1. Technical Breakthroughs:

    • Dual AC PMSM Motors: Deliver 40% higher torque than traditional systems for steep terrain.
    • VCU Integration: Enables real-time battery optimization, extending lifespan by 30%.
    • IE4 Efficiency: Reduces energy consumption by 20% compared to IE3 models.

  2. Version Selection Guide:

    • Base Model: Ideal for urban schools with short routes (≤200 km/day).
    • Advanced Model: Suited for mixed terrain or extended routes (200–250 km/day) with moderate payloads.
    • Pro Model: Best for hilly regions or high-capacity needs (≥300 km/day), offering triple the industry-standard chemical resistance in batteries for extreme weather resilience.

*Pro Model’s 210 kW output outperforms competitors by 15% in peak torque scenarios.

Frequently asked questions

  • Which electric school bus conversion kit suits daily routes for a 10.5m RMHD3900 school bus?

  • How do I maintain the lithium batteries in the RMHD3900 electric school bus kit?

  • Why choose PMSM motors over induction motors for the RMHD3900 conversion?

  • Can the RMHD3900 conversion kit support custom charging solutions?

  • Is the RMHD3900 electric school bus kit certified for safety and efficiency?

  • What’s the estimated range of the RMHD3900 duel motor conversion kit on a single charge?

  • How long does it take to fully charge the RMHD3900 electric school bus batteries?

  • Does the RMHD3900 conversion reduce noise compared to diesel buses?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Electric Motor (AC)Urban routes, frequent stops- Industry Standard: IE3 efficiency (92% energy conversion)
- Our Base: IE4 efficiency (95%▲3%)
- Our Advanced: IE5 efficiency (97%▲2%)
Motor Type: PMSM (12,000 RPM▲20% vs induction motors)		▲3% efficiency reduces charging needs by 10%
Smooth acceleration for school zones		Advanced versions may require specialized maintenance
Battery SystemLong-distance routes, all-day operation- Industry Standard: 200 kWh (NMC chemistry)
- Our Base: 220 kWh (LFP▲10% safer)
- Our Advanced: 250 kWh (LTO▲13.6% lifespan)		▲25% capacity extends range by 30%
LFP chemistry eliminates thermal runaway risk		Advanced batteries are 15% heavier
Vehicle Control Unit (VCU)Real-time monitoring, safety protocols- Industry Standard: Basic BMS monitoring
- Our Base: Smart BMS with thermal alerts
- Our Advanced: AI-driven predictive maintenance		▲20% fault detection speed reduces downtime
Advanced: Predicts battery degradation 6 months ahead		Advanced systems may require software updates
Charging SystemRapid charging stations, depot charging- Industry Standard: 150 kW DC fast charging
- Our Base: 200 kW (▲33%)
- Our Advanced: 350 kW (▲73%)		▲33% cuts charging time to 45 minutes for Base
Advanced: Full charge in 20 minutes		Advanced chargers need higher voltage infrastructure
Thermal ManagementExtreme temperatures, prolonged use- Industry Standard: Passive cooling (45°C max)
- Our Base: Active liquid cooling (▲20% efficiency)
- Our Advanced: Dual-zone cooling (▲30% thermal stability)		▲20% efficiency prevents overheating in summer
Advanced: Maintains optimal temps in -20°C to 50°C		Advanced systems add 5% to upfront cost
Safety FeaturesStudent transportation, emergency stops- Industry Standard: Basic collision sensors
- Our Base: 6-camera surveillance + emergency braking
- Our Advanced: Lidar + automatic pedestrian detection		▲50% accident prevention rate vs industry
Advanced: 99% obstacle detection accuracy		Advanced sensors may require driver training

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