As a trusted China supplier, and factory, Starwell provides the advanced 6.6KW OBC Battery Charger designed for electric vehicles and industrial battery systems. This charger integrates high efficiency, intelligent protection, and durable design, making it a dependable choice for OEM and bulk buyers seeking long-term performance and safety.
The 6.6KW OBC Battery Charger is engineered to deliver consistent power supply for EV batteries, ensuring optimized charging cycles, extended battery life, and reliable operation even in harsh environments.
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SPECIFICATION |
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Input |
Rated input voltage |
220V OR 380V OR 110V |
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Inrush current |
≤32A |
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Input power factor |
≥0.99(@220Vin,Pomax) |
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Output |
Output method |
Constant Voltage / Constant Current |
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Output Power |
6600W@220VAC/3300W@110VAC/6600W@380VAC |
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Voltage regulation accuracy |
≤1% |
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Current regulation accuracy |
≤5% |
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Ripple voltage coefficient |
≤1% |
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Output response time |
≤5S |
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Typical efficiency |
≥93% |
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Low Voltage output |
Output method |
Constant Voltage |
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Output power |
13.8V/27.6V |
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Raged current |
5A |
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CV ccuracy |
±2% |
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Max current |
5.5A±0.5A |
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Output power |
≥62.5W |
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Ripple voltage coefficient |
1% |
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Communi cation function |
CAN Communication |
Yes |
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Baud rate |
125Kbps、250Kbps、500Kbps(Optional) |
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Terminating resistor |
No |
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PROTECTION
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Input over voltage protection |
YES |
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Input under voltage protection |
YES |
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output over voltage protection |
Output ceases when the output voltage exceeds the maximum limit by 1%. |
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Output over voltage protection |
Output ceases when the output voltage falls below the minimum limit by 5%. |
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Pprotection |
Output over current protection |
Output ceases when the output current exceeds the maximum limit by 1%. |
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Over temperature protection |
Power output begins to decrease at 85°C; automatic shutdown at 90°C. |
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Short circuit protection |
Output disabled. |
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Anti-reverse protection |
Yes. |
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Gound protection |
≤100 mΩ |
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CAN communication protection |
Automatically stops output in the event of a CAN communication failure. |
Safety Standards and Others
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Safety Standards and Others |
Withstand voltage |
Input-to-Output: 2000 VAC ≤ 20 mA Input-to-Ground: 2000 VAC ≤ 24 mA Output-to-Ground: 2000 VAC ≤ 20 mA; all tests conducted for 1 minute |
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Insulation resistance |
Input, Output, and Signal terminals to Enclosure: ≥ 10 MΩ (Test Voltage: 1000 VDC) |
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Electromagnetic immunity |
Compliant with Clause 11.3.1 of GB/T 18487.3-2001 |
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Electromagnetic harassment |
Compliant with Clause 11.3.1 of GB/T 18487.3-2001 |
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Harmonic current |
满足 GB 17625.1-2003 6.7.1.1 条 |
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Current rise time |
≤5 s, Overshoot ≤5% |
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Turn off response time |
100%到 10%≤50mS,100%到 0%≤200mS |
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Protection level |
IP67 |
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Vibration resistant |
10–25 Hz at 1.2 mm amplitude; 25–500 Hz at 30 m/s²; 8 hours per direction. |
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Noise |
≤60dB(Class A) |
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MTBF |
150000H |
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Working environment |
Relative Humidity: 5%–95% (non-condensing) |
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Operating temperature |
-35℃ ~ +85℃ |
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Storage temperature |
-55℃ ~ +100℃ |




Key Features
1. High Efficiency & Stable Output
· The 6.6KW OBC Battery Charger achieves up to 93% efficiency, reducing energy loss and improving charging performance.
· Supports constant voltage and constant current modes for precise battery management.
· Fast response time ensures smooth and stable charging output.
2. Robust Protection System
· Built-in intelligent protections including over-voltage, over-current, short circuit, and reverse polarity protection.
· The 6.6KW OBC Battery Charger automatically shuts down under abnormal conditions and safely recovers.
· Thermal protection reduces power at 85°C and shuts off at 90°C for maximum safety.
3. IP67 Sealed Design
· Fully potted structure ensures excellent waterproof, dustproof, and vibration-resistant performance.
· The 6.6KW OBC Battery Charger operates reliably even under short-term flooding conditions.
· Ideal for outdoor, industrial, and demanding environments.
4. Wide Voltage Compatibility
· Supports 110V, 220V, and 380V input, offering flexible application across global markets.
· High power factor ≥0.99 ensures efficient energy utilization and reduced grid impact.
1. Are you a manufacturer or trading company?
We are a manufacturer which has 8 years expearance in power supply/power adapter/ charger field.
2. Is your product in full current and full power ?
Yes, we will not do non-full current and non-full power product to customers.
3. Is your products safety ?
Yes. First, we utilize brand-new, fire-retardant materials; furthermore, our products have obtained numerous international certifications, including CE, RoHS, UL, FCC, TUV, GS, PSE, KC, CB, and BSMI.
4. What is your MOQ?
500pcs
5. What is your product warranty policy?
One year
6. What is the delivery time ?
Sample Orders: 2–3 business days after confirmation.
Bulk Orders: Typically 7–15 business days after confirmation; specific delivery times depend on your order quantity.
7. What service could you offer ?
OEM ODM are welcome
8. What is your payment method and trade term ?
By TT , Paypal , Western Union
For bulk order, 30% as deposit, 70% pay off before shipment