3.3KW OBC On Board Chargers For Electric Vehicles, Boats, IP67 EV Charger
As electric vehicle or electric boat project managers, you’re constantly seeking solutions to optimize efficiency and reliability. That’s where the SMHC3 series OBC on board charger excels. Designed specifically for your needs, this charger offers high efficiency, compact size, and extended lifespan, ensuring seamless integration with your lithium batteries. Its fully sealed design with IP67 protection enables safe operation under immersion conditions, while the built-in thermal sensing device ensures reliability in extreme temperatures. With overheat protection and guaranteed performance in any environment, this charger delivers the peace of mind you need to drive your projects forward with confidence.
Rated Battery Voltage: 48V~440V
Product Features
Input voltage range:AC90V~264V
Frequency:45Hz~65Hz
Power factor:≥0.98
Full load efficiency:≥93%
Protection grade:IP67
Working temperature:- 40℃~60℃
Storage temperature:- 55℃~100℃
CAN communication function: Optional
12V3A Auxiliary power supply: Optional
LED light indicator for charging process: Standard
Noise: ≤ 45 dB
Protect function: Output over voltage, over current, short circuit, reverse polarity protection, input under voltage and over voltage protection, and over temperature protection
Product dimensions:294(L) x 210(W) x 111(H)
Net weight: 5.9 Kg
Cooling method: Forced air cooling
There are various charger accessories available for selection.

Protection |
Function Description |
Reverse battery protection |
When the battery is reversed, the charger has no output and will not damage the charger. |
Short circuit protection |
The charger automatically turns off the output when the output shorts out. After the fault is rectified, the battery can be recharged. |
Output over-current protection |
The output current of the charger is stable, and over current charging will not occur due to mains power or environmental changes |
Over temperature protection |
When the internal temperature of the charger exceeds the internal set value, the charging current will automatically decrease, and the charging will automatically resume when the temperature recovers |
LED indicator |
Provide LED indicator for charging process and fault display, better facilitate customers to use LED indicator |
| Model | Rated Battery Voltage | Max Output Voltage | Max Output Current |
| SMHC3-4840A | 48V | 66V | 40A |
| SMHC3-6040A | 60V | 82V | 40A |
| SMHC3-7240A | 72V | 99V | 40A |
| SMHC3-8440A | 84V | 116V | 40A |
| SMHC3-9632A | 96V | 132V | 32A |
| SMHC3-12025A | 120V | 165V | 25A |
| SMHC3-14423A | 144V | 198V | 23A |
| SMHC3-31210A | 312V | 440V | 10A |




















