DuoRacer Series(10~30A) Dual Battery MPPT Charge Controller
Dual battery charge controller supports trickle charging(max. 1A) to the start battery(BATT2) of vehicles.
DuoRacer series is perfect for off-grid solar system such as motorhome, RVs, campers, boats, and so on. It charges the main battery (BATT1)for living, and supports trickle charging(max. 1A) to the start battery(BATT2) of vehicles at the same time.
| Model | DR1106N-DDB/DDS | DR2106N-DDB/DDS | DR3106N -DDB/DDS | DR1206N -DDB/DDS | DR2206N -DDB/DDS | DR3206N -DDB/DDS | DR2210N -DDB/DDS | DR3210N -DDB/DDS |
| BATT1 rated voltage | 12VDC | 12VDC | 12VDC | 12/24VDC | 12/24VDC | 12/24VDC | 12/24VDC | 12/24VDC |
| BATT2 rated voltage | 12VDC | 12VDC | 12VDC | 12/24VDC/Auto | 12/24VDC/Auto | 12/24VDC/Auto | 12/24VDC/Auto | 12/24VDC/Auto |
| BATT1 rated charge current | 10A | 20A | 30A | 10A | 20A | 30A | 20A | 30A |
| BATT2 rated charge current | 1A | 1A | 1A | 1A | 1A | 1A | 1A | 1A |
| Battery input voltage range | 8.5๏ฝ16V | 8.5๏ฝ16V | 8.5๏ฝ16V | 8.5๏ฝ32V (*1) | 8.5๏ฝ32V | 8.5๏ฝ32V | 8.5๏ฝ32V | 8.5~32V |
| Max. PV open circuit voltage | 60V๏ผAt minimum operating environment temperature๏ผ(*2) 46V๏ผAt 25โ environment temperature ๏ผ(*3) |
100V๏ผAt minimum operating environment temperature๏ผ(*2) 92V ๏ผAt 25โ environment temperature ๏ผ(*3) |
||||||
| MPP voltage range | (Battery Voltage+2V)๏ฝ36V | (Battery Voltage+2V)๏ฝ72V | ||||||
| Rated charge power | 130W/12V | 260W/12V | 390W/12V | 130W/12V 260W/24V |
260W/12V 520W/24V |
390W/12V 780W/24V |
260W/12V 520W/24V |
390W/12V 780W/24V |
| Max. conversion efficiency | 96.30% | 96.90% | 97.40% | 97.40% | 97.50% | 98% | 97.50% | 98% |
| Full load efficiency | 95.50% | 94.60% | 94.20% | 97% | 96% | 96% | 96% | 96% |
| Self-consumption | 12mA/12V;ย 6mA/12V (Low-power mode) | ย 12mA/12V; 6mA/12V (Low-power mode) | ย 12mA/12V; 6mA/12 (Low-power mode) | 12mA/12V;8mA/24V;4mA/12V;3mA/24V (Low-power mode) |
12mA/12V;8mA/24V;4mA/12V;3mA/24V (Low-power mode) |
12mA/12V;8mA/24V;4mA/12V;3mA/24V (Low-power mode) |
26mA/12V;15mA/24V;19mA/12V;10mA/24V (Low-power mode) |
26mA/12V;15mA/24V;19mA/12V;10mA/24V (Low-power mode) |
| Temperature compensation (*4) | โ3mV/โ/2V(default) | |||||||
| Grounding | Common negative | |||||||
| BATT2 full voltage | 13.8V/12V | 13.8V/12V | 13.8V/12V | 13.8V/12V; 27.6V/24V(default) |
13.8V/12V; 27.6V/24V(default) |
13.8V/12V; 27.6V/24V(default) |
13.8V/12V; 27.6V/24V(default) |
13.8V/12V; 27.6V/24V(default) |
| BATT2 charge return voltage | 13V/12V | 13V/12V | 13V/12V | 13V/12V; 26V/24V(default) |
13V/12V; 26V/24V(default) |
13V/12V; 26V/24V(default) |
13V/12V; 26V/24V(default) |
13V/12V; 26V/24V(default) |
- *Warning: When the lithium battery of 12V is used and the BMS is protected, the lithium battery voltage may increase up to 17V(DR*106N) or 35V (DR*206NใDR*210N) which may damage the load, so please consider the loadโs voltage
- *At minimum operating environment temperature.
- *At 25โ environment temperature.
- *The Temperature compensation coefficient is zero and not changeable when the main battery type is a lithium battery.
| Environmental Parameters | ||||||||
| Operating temperature range |
-20โ~+50โ(DDS)ย -30โ๏ฝ+50โ(DDB) |
-20โ~ +50โ(DDS) -30โ๏ฝ+50โ(DDB) |
-20โ๏ฝ+50โ(DDS) -30โ๏ฝ+50โ(DDB) |
-20โ๏ฝ+50โ(DDS) -30โ๏ฝ+50โ(DDB) |
-20โ๏ฝ+50โ(DDS) -30โ๏ฝ+50โ(DDB) |
-20โ๏ฝ+45โ(DDS) -30โ๏ฝ+45โ(DDB) |
-20โ๏ฝ+50โ(DDS) -30โ๏ฝ+50โ(DDB) |
-20โ๏ฝ+45โ(DDS) -30โ๏ฝ+45โ(DDB) |
| Enclosure | IP33 | |||||||
| Mechanical Parameters | ||||||||
| Dimension(LxWxH)(mm) | 227.2ร143ร58 | 243.7ร158ร63 | 247.2ร165ร68.5 | 227.2ร143ร58 | 243.7ร158ร63 | 247.2ร165ร68.5 | 243.7ร158ร63 | 247.2ร165ร68.5 |
| Net weight | 0.8kg | 1.1kg | 1.4kg | 0.8kg | 1.1kg | 1.4kg | 1.1kg | 1.4kg |
Datasheet
EPEVER-Datasheet-DuoRacer
Manual
DuoRacer-Manual-EN-V2.5
Certificates
Certificate ROHS DuoRacer
Certificates
Certificate FCC DuoRacer
Product Highlights
Maximum Power Point Tracking technology with ultra-fast tracking speed and the tracking efficiency is no less than 99.5%
Advanced MPPT control algorithm to minimize the MPP lost rate and lost time
The wider range of the MPP operation voltage to improve the PV module utilization
Charging power & charging current limit function(BATT1)
High quality and low failure rate components
Digital circuit control of adaptive three-stage charging mode
BATT1 type can be set via LED/LCD.
Product runs into the low self-consumption mode if PV voltage is lower than 5V and there is no manual operation for some time.
100% charging and discharging in operation environmental temperature range.
LED and LCD display units optional
Standard Modbus protocol, and RS485 (5V/200mA) communication port for the customer to expand the application area.
It doesn't matter if both are 12V batteries. If both are 24V batteries, it is required to connect the Bat2 first and the Rated Voltage Level of Bat1 has to be set as 24V, or there will be System Voltage Error alarm.
Bat1 can be a lead-acid battery and lithium battery, and Bat2 has to be the lead-acid battery.
Bat1 and Bat 2 can be different types. But both batteries should have the same rated voltage, i.e., both are 12V batteries or 24V batteries.
Giuseppe –
It is a good product, but the manual does not report the charging stages, and you have to guess them using the manuals of other chargers….
mason@epever.com –
Hi Giuseppe, thanks for your comments. We will try to upgrade the manual and consider your suggestion. If you have other questions, you can also send an email to info@epever.com
Alptraveler –
The unit was straight forward to connect but the app is out of date, even discontinued. They, the company, promised they would “update” it starting the summer of 2021via an email sent to me. To date, nope. There is no way to actually talk to a person, communication is over seas. I may give it this summer than rip it out, sell it and buy the MORE POPULAR BRAND that has better reviews. I love the concept, I do not love an outdated app and no direct communication. Also, there are limitations on being able to adjust some of the values to match what you actually have in your system. i.e. Temps only in C instead if F. Again, there are better brands that have better support and bluetooth .
mason@epever.com –
Hi Alptraveler, thanks for your comment. You can download โepever pairโ app from the Apple Store or Google Play. Please send an email to support@epever.com if you have other questions.
Allan –
It’s a great mppt this DuoRacer – but setting it up using the MT-11 is hell.
I still haven’t figured it out.
I have the “normal” 40A MPPT – which I set up using the MT-50 and settings from BattleBorn. It works fine
I wish they would have someone describe in details how to set it up for Lead-Acid, LifePO4 etc etc – which specs to set when using UserDefined
mason@epever.com –
Hi Allan, thanks for your comments. Could you leave your email here, we will have technicians help you out.
another link for solar panels –
Grate overall complete guide.
Mulchi –
Gibt es ein Kabel das vom Bluetooth Modul zu diesem Laderegler geht? Wenn ja und wie heisst der Stecker? Bekomme ich das irgendwo?
sabrina@epever.com –
Hi. Thank you for your comment. I can tell you the type of the connector:CC-RJ45-3.81-150 But I ‘m not sure where you can buy it. You can choose to Google. Hope you find the final solution.
Rick Faulkner –
Perfect for what i wanted; charging both the van & leisure battery. Agreed about the App, but when i e-mail Epever about it, they always respond quick and update the App ASAP; Samsung seem to always move the goal-posts ๐ I think i have lost connection twice in 2+ years, a few weeks each time.
chenyaohua@epever.com –
Hello sir,
Thank you for your feedback! We’re glad to hear that our product is perfect for your needs, especially for charging both the van and leisure battery. We apologize for any inconvenience caused by the App, and we appreciate your understanding. We value your feedback and will continue to work on improving our product and services. If you have any specific suggestions or requirements, please let us know. In regard to the issue with Samsung, we suggest reaching out to them directly to address your concerns. Thank you again for your support!
Asgeir Sonstad –
Works well for me. Not so good english translation of the app Solar Guardian. And the app shows the sign for night (moon) in daytime and the sun in the despite the clock setting is correct. Software or hardware issue?
chenyaohua@epever.com –
Hello sir, thank you for your suggestion and feedback about the solar guardian app. Since we are upgrading the app, could you please send some details about the issue to solarguardianfeedback@epever.com? This will help our R&D team better analyze and solve the issue. Thank you so much for your help.