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Victron 12/24V 20A BlueSolar PWM-LCD&USB (DUO Dual Battery) Solar Charge Controller
Dual Battery PWM Controller with LCD, USB & Temp Sensor - 20A
Victron Grey Smart BMV-712 Battery MonitorDESCRIPTION
Victron BlueSolar PWM-DUO LCD&USB 12/24V 20A: Dual Battery Solar Charge Controller with Intelligent Load Management
Professional-Grade Solar Regulation for Independent Dual Battery Charging
The Victron BlueSolar PWM-DUO LCD&USB 12/24V 20A is a sophisticated PWM solar charge controller engineered to charge two separate battery banks from a single solar array. Unlike standard single-bank controllers, the DUO model features a programmable charge current ratio, allowing precise distribution of available solar energy between a primary service battery and a secondary starter or auxiliary battery. This makes it an ideal solution for 4WD dual battery systems, marine installations, caravans, and off-grid setups where maintaining both a deep-cycle house battery and a cranking battery is critical.
With automatic 12/24V system voltage detection, a backlit LCD display for real-time monitoring, and dual integrated 5V 2A USB ports for direct device charging, this controller combines essential power management functions in a compact, IP20-rated chassis. The included remote battery temperature sensor enables voltage compensation based on actual battery temperature, promoting longer battery life and safer charging in fluctuating environmental conditions.
Key Features
- Dual battery charging with programmable current ratio for independent management of two battery banks
- Three-stage charging (bulk, absorption, float) with fully adjustable voltage setpoints for lead-acid and lithium (LiFePO4) batteries
- Integrated LCD display for clear visibility of system status, battery voltage, and charge current
- Dual 5V 2A USB outputs for convenient charging of phones, tablets, and other USB-powered devices
- Programmable load output with low-voltage disconnect and manual control, protected against overload and short circuit
- Comprehensive electronic protections: reverse polarity (battery and solar), over-temperature, and lightning surge protection
- Included remote temperature sensor for accurate temperature-compensated charging
- Lighting control function with fully programmable timer for dusk-to-dawn or timed lighting applications
Advanced Dual Battery Management
In many mobile and off-grid power systems, a single solar array must service both a deep-cycle battery for appliances and a starter battery for engine cranking. The BlueSolar PWM-DUO addresses this by allowing the user to set a custom charge current split (e.g., 80% to house battery, 20% to starter battery). This prevents overcharging of the starter battery while ensuring the service battery receives the bulk of available solar energy. The controller automatically detects 12V or 24V nominal system voltage, simplifying installation and reducing the risk of misconfiguration.
Intelligent Charging and Load Control
The controller employs a three-stage charging algorithm (bulk, absorption, float) that can be fully programmed via the onboard LCD interface and push buttons. This allows precise tailoring of charge voltages to suit flooded lead-acid, AGM, gel, or LiFePO4 battery types. The load output terminal can be configured for low-voltage disconnect to protect batteries from deep discharge, or used as a programmable lighting controller with dusk-to-dawn functionality. The dual USB ports provide a regulated 5V output independent of the load terminals, enabling direct charging of mobile devices without additional adapters.
Robust Protection and Reliability
Victron's BlueSolar PWM series is built for demanding environments. The DUO model includes electronic protection against reverse polarity connection of both the solar array and battery, preventing damage during installation. Over-temperature protection ensures safe operation up to 55°C ambient at full load, while the common negative grounding simplifies integration with existing vehicle or marine electrical systems. The IP20 enclosure is designed for indoor or protected mounting, with 16 mm² (AWG6) terminals that accept substantial cable sizes for low-loss connections.
Applications
- 4WD and camping dual battery systems: Maintain starting battery charge while powering fridge, lights, and accessories from the auxiliary battery
- Marine and boating: Keep both house and engine batteries topped up from solar, with corrosion-resistant construction suitable for protected marine environments
- Caravans and RVs: Charge the house battery bank and vehicle starter battery simultaneously during storage or off-grid camping
- Remote off-grid cabins: Manage two separate battery banks for redundancy or different voltage requirements
- Lighting control: Use the programmable load output for automatic solar-powered lighting in sheds, signage, or security applications
Why Choose Victron BlueSolar PWM-DUO?
Compared to generic PWM controllers, the Victron BlueSolar PWM-DUO offers superior build quality, advanced programmability, and the reliability expected from a leading power electronics manufacturer. The inclusion of a remote temperature sensor, dual USB ports, and a clear LCD interface reduces the need for additional components and monitoring equipment. Its ability to charge two batteries independently from a single solar array eliminates the complexity and cost of installing separate charge controllers or battery isolators, making it a cost-effective solution for dual battery solar charging.
With a maximum solar input voltage of 28V for 12V systems and 55V for 24V systems, this controller is compatible with standard 36-cell and 72-cell solar panels respectively. The 20A rated charge current supports solar arrays up to approximately 280W at 12V or 560W at 24V, providing ample capacity for most small to medium off-grid power systems.
Take Control of Your Dual Battery Solar System
Equip your 4WD, boat, or off-grid setup with the Victron BlueSolar PWM-DUO LCD&USB 12/24V 20A and experience reliable, programmable dual battery charging from a trusted brand. Order today to simplify your solar power management and keep both your batteries ready for action.
SKU: Vic-SCC010020060
SPECIFICATIONS
Specifications
| Model | BlueSolar PWM-DUO LCD-USB 12/24-20 |
|---|---|
| Battery Voltage | 12/24 V With Automatic System Voltage Detection [For LiFePO4 No Automatic System Voltage Detection] |
| Rated Charge Current | 20 A |
| Second Battery Output | Yes |
| Load Output | 2 USB Ports 5 V / 2 A |
| Automatic Load Disconnect | 10.5 V / 21 V |
| Maximum Solar Voltage | 28 V / 55 V |
| Self-Consumption | 10 mA |
| Protections | Battery Reverse Polarity (Fuse), Over Temperature |
| Grounding | Common Negative |
| Operating Temp. Range | -35 to +55°C (Full Load) |
| Humidity (Non-Condensing) | Max 95% |
| Charge Voltage 'Absorption' | 14.4 V / 28.8 V |
| Charge Voltage 'Float' | 13.7 V / 27.4 V |
| Battery Temperature Sensor | Yes, Remote Sensor [Included] |
| Temperature Compensation | -30 mV/°C / -60 mV/°C |
| Protection Class | IP20 |
| Terminal Size | 16 mm² / AWG6 |
| Weight | 0.3 kg |
| Dimensions (H x W x D) | 101.5 x 184.0 x 47.1 mm [4.0 x 7.4 x 1.8 inch] |
| Safety | IEC 62109-1 |
| EMC | EN 61000-6-1, EN 61000-6-3, ISO 7637-2 |
| SKU: | Vic-SCC010020060 |
| Barcode: | 8719076046219 |
| Model #: | SCC010020060 |
| MPN: | SCC010020060 |
WARRANTY
Victron Energy Limited Warranty Policy
Victron Energy warrants its products to be free from defects in workmanship and materials for a period of 5 years from the date of purchase by the end user, with a maximum of 66 months from the Victron Energy invoice date. Exceptions on this are: lead acid batteries; 2 years from date of purchase by the end user, with a maximum of 30 months from the Victron Energy invoice date, Lithium-ion batteries; 3 years from date of purchase by the end user. In addition to this proof of correct battery usage is required when making a battery warranty claim.
During this period, Victron Energy will, at its option, repair or replace the defective product free of charge. The warranty does not include performing or reimbursing de‐installation, transportation and re‐installation. This warranty will be considered void if the unit has suffered any physical damage or alteration, either internally or externally, and does not cover damages arising from improper use like: • Reverse of battery polarity. • Inadequate connection. • Mechanical shock or deformation. • Contact with liquid or oxidation by condensation. • Use in inappropriate environment (dust, corrosive vapor, humidity, high temperature, biological infestation...). • Breakage or damage due to lightning. • Connection terminals and screws destroyed or other damages, like overheat, due to insufficient tightening. • For any electronical breakage except due to lightning (reverse polarity, over‐voltage due to external cause), the state ofthe internal control diode and of the inputs/output X and Y capacitors determine the warranty.
This warranty will not apply where the product has been misused, neglected, improperly installed, or repaired by anyone else than Victron Energy or one of its authorized Qualified Service Partners. In order to qualify for the warranty, the product must not be disassembled or modified.
Repair or replacement are our sole remedies and Victron Energy shall not be liable for damages, whether direct, incidental,special, or consequential, even caused by negligence or fault.
Victron Energy owns all parts removed from repaired products. Victron Energy uses new or reconditioned parts made by various manufacturers in performing warranty repairs and building replacement products. If Victron Energy repairs or replaces a part of a product, its warranty term is not extended. In case of replacement the new component has a warranty of 6 months, without effect on the initial warranty period. All remedies and the measure for damages are limited to the above. Victron Energy shall in no event be liable for consequential, incidental, contingent orspecial damages, even if having been advised of the probability of such damages. Any and all other warranties expressed or implied arising by law, course of dealing, course of performance, usage of trade or otherwise, including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited in duration to a period of two (2) years from the date of purchase.
Life Support Policy As a general policy, Victron Energy, does not recommend the use of any of its products in life support applications where failure or malfunction of the Victron Energy's product can be reasonably expected to cause failure of the life support device or to significantly affect its safety or effectiveness. Victron Energy does not recommend the use of any of its products in direct patient care. Victron Energy will not knowingly sell its products for use in such applications unless it receives in writing assurances satisfactory to Victron Energy that the risks of injury or damage have been minimized, the customer assumes all such risks, and the Liability of Victron Energy is adequately protected under the circumstances.
As a product requires service, it must be brought back to the place of purchase. In case no contact can be taken with the merchant, or if he is either unable or not allowed to provide service, direct contact should be taken with Victron Energy.
Warranty on Repairs The warranty period on products or on printed circuits boards repaired by Victron Energy as well as on printed circuit boards for replacement is 6 months from delivery by Victron Energy.
Transport It is the responsibility of the sender to sufficiently package these products. The transport must be organized in a way to avoid any damage, especially when a single unit or heavy unit is sent.
Severability If a part of the terms and conditions set out above is held invalid, void or unenforceable due to any particular national or international legislation, it shall not affect other parts of the terms and conditions remaining.
For Australia only Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.
Exotronic provides high-quality products and solutions tailored for B2B and commercial customers, including commercial businesses, caravan manufacturers, marine electricians, OEMs, as well as emergency services, and more.
