Onboard Chargers (OBC) | Echelon Charger
3.3KW OBC | Echelon Charger
Designed for 72V and 96V electric vehicle battery platforms. Featuring CAN Bus communication, high charging efficiency, air cooling and comprehensive protection functions, it provides reliable AC charging for electric motorcycles, utility vehicles and commercial EV applications.
Specifications
- AC Input Voltage
- 90–264 VAC
- Voltage Platform
- 72V / 96V
- Maximum Efficiency
- ≥93%
- Cooling Method
- Air Cooling
- Communication
- CAN Bus
- IP Rating
- IP67
3.3kW Onboard Charger Series for 72V & 96V Electric Vehicles
Product Overview
The 3.3kW On-board Charger Series is designed for charging traction batteries in new energy vehicles and is available for both 72V and 96V battery platforms.
With a wide 90–264VAC input range, CAN Bus communication, air cooling and multiple electrical protection functions, the charger provides stable and reliable onboard charging for different electric vehicle platforms.
Download Technical datasheet OBC 3.3KW 72V
Download Technical datasheet OBC 3.3KW 96V
Specification
| 72V Version | 96V Version |
|---|---|---|
Model | PO-AA-3D-72 | PO-AA-3D-96 |
Battery Platform | 72V DC | 96V DC |
AC Input Voltage | 90–264VAC | 90–264VAC |
Input Frequency | 47–63Hz | 47–63Hz |
Input Current | 0–16A | 0–16A |
Power Factor | ≥0.98 | ≥0.98 |
Standby Power | ≤5W | ≤5W |
Output Voltage | 50–100V DC | 64–128V DC |
Output Current | 0–40A | 0–32A |
Output Power @ 220VAC | 3300W | 3300W |
Output Power @ 110VAC | 1650W | 1650W |
Constant Voltage Accuracy | ±1% | ±1% |
Constant Current Accuracy | ±2% | ±2% |
Maximum Efficiency | ≥93% | ≥93% |
Cooling Method | Air Cooling | Air Cooling |
Weight | 4.3kg | 4.3kg |
Communication | CAN Bus | CAN Bus |
Charging Performance
The charger supports a wide AC input voltage range and automatically provides controlled DC charging output according to the selected battery platform.
The 72V version provides 50–100V DC output with up to 40A output current, while the 96V version provides 64–128V DC output with up to 32A output current.
Both versions provide constant-voltage accuracy of ±1% and constant-current accuracy of ±2%, supporting stable battery charging throughout the charging process.
Protection Functions
The onboard charger integrates multiple protection functions for reliable vehicle operation.
- Input Under-voltage Protection: 90VAC ±2V
- Input Over-voltage Protection: 264VAC ±2V
- Output Under-voltage Protection: ≤45V DC
- Output Over-voltage Protection: ≥105V DC
- Output Over-current Protection
- Output Short-circuit Protection
- Over-temperature Protection
CAN Communication & Vehicle Integration
Both versions support CAN Bus communication.
The signal interface includes CANH and CANL together with wake-up, charging connection confirmation, charging connection guidance, high-voltage interlock and electronic lock-related signals, supporting integration into vehicle charging and control systems.
Cooling & Mechanical Design
Both chargers use an air-cooled design and weigh approximately 4.3kg.
The two versions share a compact onboard installation concept, making them suitable for integration into electric vehicle platforms where charging power, communication and installation space need to be balanced.
Applications
Designed for new energy vehicle traction battery charging, with separate versions available for 72V and 96V battery platforms.
About Echelon Charger
Echelon Energy Technology specializes in onboard chargers, DC/DC converters, and integrated EV power solutions for commercial and specialty electric vehicles.
For technical discussions, product selection, or OEM/ODM cooperation:
💬 WhatsApp: +86 18114665311
