Product Overview
Core Parameters Summary
- AC Input Range90 - 264V (Global)
- Charging MethodCC / CV / Trickle (3-Stage)
- Cooling SystemPassive Fanless Integration
- Power Efficiency≥ 90% at full load
- No-Load Power< 1.8W
- Enclosure MaterialV0 Flame-Resistant PC
Core Advantages
Built to exceed consumer standards with commercial-grade engineering.
Fast Charging
High-efficiency power conversion algorithms significantly reduce charging time while maintaining cell integrity and minimizing heat generation.
Intelligent Protection
Built-in micro-controller constantly monitors voltage, current, and temperature in real-time to ensure absolute operational safety.
Wide Compatibility
Broad AC input range (90-264V) accommodates global power grid standards seamlessly without requiring manual voltage switching.
Industrial Grade
Robust fanless passive cooling architecture and rugged V0 flame-resistant casing designed specifically for harsh environments.
Energy Efficient
Exceeds 92% efficiency at full load and consumes less than 1.8W in standby, minimizing wasted power and reducing operational costs.
8-Level Safety Protection
Comprehensive, redundant electronic safeguards ensure risk-free charging environments.
Overcurrent Protection
Instantly limits current output if the draw exceeds safe operational parameters, preventing wire overheating.
Short Circuit Protection
Detects output shorts in microseconds and halts power delivery until the fault is physically cleared.
Overvoltage Protection
Clamps the output voltage to prevent spikes from damaging the sensitive BMS inside the lithium pack.
Reverse Polarity
Blocks current flow completely if the charger is connected incorrectly, eliminating the risk of spark or fire.
Overtemperature
Monitors internal thermals; reduces output or shuts down entirely if ambient heat pushes the unit past safe limits.
12-Hour Auto-Shutoff
Hard-coded timeout prevents continuous indefinite charging if a damaged battery fails to reach terminal voltage.
Full-Charge Shutoff
Cuts power mechanically when the trickle phase confirms the cells are at 100% capacity.
Recharge Wake-Up
Automatically re-engages charging if the battery drops below a threshold voltage while still plugged in.
Technical Specifications Comparison
Select the right voltage and amperage for your battery architecture.
| Model No. | Output Voltage / Current | Input Frequency | Input Voltage Range | Efficiency | Communication | Certifications |
|---|---|---|---|---|---|---|
| R4202 | 42.0V / 2A | 50/60Hz | 90-264V AC | ≥90% | CAN, UART, NTC, RS485 | CE, FCC, UL, RoHS, PSE, KC |
| R4203 | 42.0V / 3A | 50/60Hz | 90-264V AC | ≥90% | CAN, UART, NTC, RS485 | CE, FCC, UL, RoHS, PSE, KC |
| R4204 | 42.0V / 4A | 50/60Hz | 90-264V AC | ≥90% | CAN, UART, NTC, RS485 | CE, FCC, UL, RoHS, PSE, KC |
| R4206 | 42.0V / 6A | 50/60Hz | 90-264V AC | ≥90% | CAN, UART, NTC, RS485 | CE, FCC, UL, RoHS, PSE, KC |
| 54602 | 54.6V / 2A | 50/60Hz | 90-264V AC | ≥90% | CAN, UART, NTC, RS485 | CE, FCC, UL, RoHS, PSE, KC |
| 54603 | 54.6V / 3A | 50/60Hz | 90-264V AC | ≥90% | CAN, UART, NTC, RS485 | CE, FCC, UL, RoHS, PSE, KC |
| 54604 | 54.6V / 4A | 50/60Hz | 90-264V AC | ≥90% | CAN, UART, NTC, RS485 | CE, FCC, UL, RoHS, PSE, KC |
| 54605 | 54.6V / 5A | 50/60Hz | 90-264V AC | ≥90% | CAN, UART, NTC, RS485 | CE, FCC, UL, RoHS, PSE, KC |
Ready to Source This Charger?
Contact our B2B team for bulk pricing, custom configurations, and OEM partnership opportunities.
Request B2B QuoteApplication Scenarios
Versatile performance across different operating environments.

Daily Commuter Vehicles
Reliable charging solutions for daily commute electric bikes, enabling seamless home and office charging experiences.

Shared Mobility Fleets
Efficient fleet charging infrastructure for shared mobility services, supporting multiple vehicles with fast and reliable charging.

Micro-Mobility Hardware
Versatile charging compatibility for various micro-mobility devices including e-scooters, folding bikes, and compact electric vehicles.
DIY Retrofit Kits
Complete retrofit solutions for custom electric bike builds, providing professional-grade charging for personalized e-bike projects.