One Controller. Two Batteries. Endless Adventures.
The EPEVER DuoRacer Series is specifically designed for motorhomes, camper vans, boats, and other mobile solar applications where both the service battery and starter battery require reliable charging. Unlike conventional solar charge controllers, DuoRacer charges both battery banks simultaneously. While the service battery receives full MPPT charging, the starter battery is automatically maintained, ensuring your vehicle is always ready to start—even after extended periods of storage.
Featuring advanced Maximum Power Point Tracking (MPPT) technology, the DuoRacer Series continuously tracks the optimum operating point of the solar array to maximize energy harvest. With a conversion efficiency of up to 98% and a tracking efficiency of ≥99.5%, it delivers significantly higher solar yields than traditional PWM charge controllers, especially under changing weather conditions. Both the DR2210N and DR3210N support 12 V and 24 V battery systems and are compatible with LiFePO₄, AGM, Gel, and Flooded lead-acid batteries. The wide PV input voltage of up to 100 V also provides greater flexibility when designing solar arrays.
The DuoRacer Series combines intelligent multi-stage battery charging with practical features such as AES refrigerator control, RS485 Modbus communication, and comprehensive electronic protection for safe and reliable operation. The DR3210N additionally features E-Mark (ECE R10) certification, meeting automotive EMC requirements for professional vehicle installations. Whether for weekend adventures, long-distance travel, or off-grid living, the EPEVER DuoRacer Series delivers reliable and efficient solar charging wherever your journey takes you.
Key Features
- Simultaneous charging of service and starter batteries
- MPPT technology with ≥99.5% tracking efficiency for maximum solar harvest
- Advanced MPPT algorithm for fast and accurate maximum power point tracking
- PV input voltage up to 100 V for flexible solar array design
- Automatic charging power and current limiting for safe operation
- Adaptive three-stage charging algorithm to optimize battery performance and extend battery life
- Compatible with LiFePO₄, AGM, Gel, and Flooded lead-acid batteries
- AES output for automatic control of compatible absorption refrigerators
- RS485 communication interface with Modbus protocol for monitoring and configuration
- Integrated LCD display for system status and parameter settings
- Automatic power-saving mode to reduce standby power consumption
- Comprehensive electronic protection against reverse polarity, short circuit, overload, overvoltage, and overtemperature
- DR3210N: E-Mark (ECE R10) certified for vehicle applications
Package Contents
- 1 × EPEVER DuoRacer MPPT Dual Battery Solar Charge Controller
- 1 × EPEVER WiFi Adapter
- 1 × RS485 Adapter Cable for WiFi Adapter
- 1 × User Manual
Technical Specifications
| Model |
DR1206N |
DR2210N |
DR3210N |
| SKU |
2121206 |
2122210 |
2123210 |
| Rated Battery Voltage (BATT1) |
12/24VDC |
|
Rated Battery Voltage (BATT1)Rated Battery Voltage (BATT1)Rated Battery Voltage (BATT1)Rated Battery Voltage (BATT2) |
12/24VDC Auto |
| Rated Charging Current |
10A |
20A |
30A |
| Battery Input Voltage Range |
8,5 ~ 32V |
| Max. PV Open Circuit Voltage (Voc) |
60V (At min. operating environment temp.) |
100V (At min. operating environment temp.) |
100V (At min. operating environment temp.) |
| Max. PV Open-Circuit Voltage @25°C |
46 V (At 25℃ environment temp.) |
92 V (At 25℃ environment temp.) |
92 V (At 25℃ environment temp.) |
| MPP Operating Voltage Range |
(Battery Voltage + 2V) ～ 36V |
(Battery Voltage + 2V) ～ 72V |
(Battery Voltage + 2V) ～ 72V |
| Max. PV Input Power (12V) |
130W/12V |
260W/12V |
390W/12V |
| Max. PV Input Power (24V) |
260W/24V |
520W/24V |
780W/24V |
| Self-Consumption (Normal Operation) |
12mA/12V;8mA/24V |
26mA/12V;15mA/24V |
26mA/12V;15mA/24V |
| Self-Consumption (Power Saving Mode) |
4mA/12V;3mA/24V(Low-power mode) |
19mA/12V;10mA/24V(Low-power mode) |
19mA/12V;10mA/24V(Low-power mode) |
| Operating Temperature |
﹣20 ℃ ～ + 50 ℃ |
﹣20 ℃ ～ + 50 ℃ |
﹣20 ℃ ～ + 45 ℃ |
| Storage Temperature |
-30℃～+80℃ |
| Protection Rating |
IP33 |
| Dimension |
227.2×143×58.1mm |
243.7×158×63mm |
247.2×165×68.5mm |
| Weight |
0,8kg |
1,1kg |
1,4kg |
| E-Mark (ECE R10) |
- |
- |
Yes |
MT11 (accessory) Features
- Automatically identify and display the type,model and relevant parameter data of Controllers.
- Real-time display the operational data and working status of the connected devices indigital,graphicsand textual forms by a large-screen multifunction LCD.
- Three touch buttons are easy and quick to operate.
- No need for external power supply. Charge controller supply the power for MT11.
- It can browse the controller’s parameters, set the battery typeand temperature unit, and clean thegenerated energy.
- Real-time display of failure information of the connected devices.
- Longer communication distance based on RS485.
Technical Specifications
| Model |
MT11 |
| Artikel Number |
2000011 |
| Self-consumption(Power on) |
13mA / 5Vdc |
| Self-consumption(Power off) |
4mA |
| Communication way |
RS485 |
| Communication port |
3.81-4P |
| Environment temperature |
-20 ～ + 70 ℃ |
| Storage temperature range |
-20 ～ + 70 ℃ |
| Enclosure |
IP20 |
| Dimension |
98,4 × 98,4 × 50 mm |
| Base Cover dimension |
114 × 114 mm |
| Weight |
0,11kg |
