SKU: 48298106398

Victron 12/24V 20A BlueSolar PWM-LCD&USB (DUO Dual Battery) Solar Charge Controller

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Description

Victron 12/24V 20A BlueSolar PWM-LCD&USB (DUO Dual Battery) Solar Charge ControllerVictron 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

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.

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SKU: 48298106398

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4.4 ★★★★★
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Product Reviews
M
Verified Purchase
melllyn
Grantham, US
★★★★★ 3
cliffhanger, no 2nd book in sight
Format: Kindle
The book itself was pretty good. The plot is unique and full of suspense and action, although some of it felt redundant. I particularly enjoyed the realistic growth cycle of the female lead from abuse survivor with low self-esteem to badass warrior. I never would have read it though if I had known this is not complete, and there is no information available on the next book.
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Reviewed in the United States on November 17, 2024
P
Verified Purchase
priscilla
West Palm Beach, US
★★★★★ 4
4.5
Format: Kindle
4.5 The Book of Cin relies heavily on the progression and growth of our fmc, which I don't hate. It shows us the girl she was and what she allowed and who she then grows into by the end due to all the events that happens within the book. This journey - physically, mentally, and especially emotionally - takes us through her current and past experiences and expresses how one can grow from trauma. Her support group is invaluable, and the new relationships she forms prove to be just as prominent to her and her growth. This is truly a story that thrives on the characters growth throughout the book and sets us up in how to see her for the coming books. My half star comes from the pacing. Though I *thoroughly* enjoyed the ending and seeing this growth take full effect, I believe that it came with just too many pages. Sitting at about 500, we get intimate and detailed scenes that we could have maybe gone without. Oftentimes, I found myself daydreaming away from the book until something more prominent peaked my interest again. I understand the depth the book goes into to fully establish this character development and the setup that this provides for the rest of the series, but I truly do believe there were scenes that could have been cut out to help with the pacing. If you're not into slow pacing (and usually I'm not), this book is still worth the read. The ending more than makes up for it, and it is absolutely detrimental to the story that we get the events that occur and see the development take shape in front of our eyes. It makes you fist pump the sky by the end.
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Reviewed in the United States on May 20, 2025
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Verified Purchase
Robin
Cuba, US
★★★★★ 5
All the stars! Emotional! Incredible!
Format: Kindle
𝘔𝘺 𝘩𝘦𝘢𝘳𝘵 𝘥𝘪𝘥𝘯’𝘵 𝘫𝘶𝘴𝘵 𝘴𝘵𝘰𝘱 𝘣𝘦𝘢𝘵𝘪𝘯𝘨—𝘪𝘵 𝘴𝘩𝘢𝘵𝘵𝘦𝘳𝘦𝘥 𝘪𝘯𝘵𝘰 𝘢 𝘮𝘺𝘳𝘪𝘢𝘥 𝘰𝘧 𝘧𝘳𝘢𝘨𝘮𝘦𝘯𝘵𝘴 𝘵𝘰 𝘵𝘩𝘦 𝘥𝘢𝘳𝘬𝘦𝘴𝘵 𝘤𝘰𝘳𝘯𝘦𝘳𝘴 𝘰𝘧 𝘵𝘩𝘦 𝘷𝘰𝘪𝘥 𝘤𝘰𝘯𝘴𝘶𝘮𝘪𝘯𝘨 𝘮𝘦. This was one of those books I have a hard time reviewing because I struggle to find the words to adequately express how incredible it was! This book deserves every single star! It is heart-wrenching, emotional, and heavy. The depictions of self-worth, guilt, loss, love, and everything in between were done beautifully. There are multiple romances to root for and the development of the plot/world was executed brilliantly. It has an amazing set of characters that will bring out not only all the rage/hate but also sacrifice that will impact your soul! The ending of chapter 19 will live rent free in my mind and is now one of my top favorite moments from any book and why Landers will forever take a top spot in my all-time favorite book boyfriends! The depiction of what true friendship should be is also well represented! Ardan stole my heart as the best side character and if you’ve read this we need to talk (iykyk)!! I absolutely need the next book to see what happens next!! “𝘐 𝘴𝘩𝘰𝘶𝘭𝘥𝘦𝘳𝘦𝘥 𝘺𝘰𝘶𝘳 𝘱𝘢𝘪𝘯, 𝘯𝘰𝘵 𝘢𝘴 𝘢 𝘵𝘦𝘴𝘵𝘢𝘮𝘦𝘯𝘵 𝘵𝘰 𝘺𝘰𝘶𝘳 𝘸𝘦𝘢𝘬𝘯𝘦𝘴𝘴, 𝘣𝘶𝘵 𝘣𝘦𝘤𝘢𝘶𝘴𝘦 𝘮𝘺 𝘰𝘸𝘯 𝘴𝘵𝘳𝘦𝘯𝘨𝘵𝘩 𝘤𝘳𝘶𝘮𝘣𝘭𝘦𝘥 𝘪𝘯 𝘵𝘩𝘦 𝘧𝘢𝘤𝘦 𝘰𝘧 𝘺𝘰𝘶𝘳 𝘴𝘶𝘧𝘧𝘦𝘳𝘪𝘯𝘨. 𝘐 𝘤𝘰𝘶𝘭𝘥 𝘯𝘰𝘵 𝘴𝘵𝘢𝘯𝘥 𝘪𝘥𝘭𝘦 𝘸𝘩𝘪𝘭𝘦 𝘐 𝘭𝘪𝘴𝘵𝘦𝘯𝘦𝘥 𝘵𝘰 𝘴𝘤𝘳𝘦𝘢𝘮𝘴 𝘰𝘧 𝘢𝘨𝘰𝘯𝘺 𝘤𝘰𝘮𝘦 𝘧𝘳𝘰𝘮 𝘢𝘯𝘰𝘵𝘩𝘦𝘳 𝘸𝘰𝘮𝘢𝘯 𝘐 𝘤𝘢𝘳𝘦 𝘧𝘰𝘳. 𝘐𝘵 𝘸𝘢𝘴 𝘯𝘰𝘵 𝘮𝘺 𝘱𝘭𝘢𝘤𝘦 𝘵𝘰 𝘵𝘢𝘬𝘦 𝘵𝘩𝘢𝘵 𝘧𝘳𝘰𝘮 𝘺𝘰𝘶, 𝘺𝘦𝘵 𝘐 𝘸𝘰𝘶𝘭𝘥 𝘥𝘰 𝘪𝘵 𝘢𝘨𝘢𝘪𝘯, 𝘧𝘰𝘳 𝘢 𝘵𝘩𝘰𝘶𝘴𝘢𝘯𝘥 𝘮𝘰𝘳𝘦 𝘩𝘰𝘶𝘳𝘴, 𝘪𝘧 𝘵𝘩𝘢𝘵 𝘮𝘦𝘢𝘯𝘵 𝘺𝘰𝘶 𝘥𝘪𝘥 𝘯𝘰𝘵 𝘩𝘢𝘷𝘦 𝘵𝘰 𝘴𝘶𝘧𝘧𝘦𝘳 𝘦𝘷𝘦𝘯 𝘢 𝘴𝘦𝘤𝘰𝘯𝘥 𝘭𝘰𝘯𝘨𝘦𝘳.” “𝘐 𝘢𝘮 𝘯𝘰𝘵 𝘩𝘪𝘮. 𝘐 𝘸𝘢𝘯𝘵 𝘵𝘩𝘦 𝘴𝘩𝘦𝘭𝘭 𝘰𝘧 𝘺𝘰𝘶. 𝘐 𝘸𝘢𝘯𝘵 𝘵𝘩𝘦 𝘣𝘳𝘰𝘬𝘦𝘯, 𝘴𝘤𝘢𝘵𝘵𝘦𝘳𝘦𝘥 𝘴𝘩𝘢𝘳𝘥𝘴. 𝘐 𝘸𝘢𝘯𝘵 𝘵𝘩𝘦 𝘵𝘦𝘢𝘳𝘴, 𝘵𝘩𝘦 𝘯𝘪𝘨𝘩𝘵𝘮𝘢𝘳𝘦𝘴, 𝘵𝘩𝘦 𝘱𝘢𝘪𝘯. 𝘐 𝘸𝘢𝘯𝘵 𝘺𝘰𝘶. 𝘈𝘭𝘭 𝘰𝘧 𝘺𝘰𝘶. 𝘛𝘩𝘦 𝘧𝘦𝘢𝘳, 𝘢𝘯𝘥 𝘦𝘷𝘦𝘳𝘺 𝘧𝘳𝘢𝘨𝘮𝘦𝘯𝘵𝘦𝘥 𝘱𝘪𝘦𝘤𝘦 𝘰𝘧 𝘺𝘰𝘶𝘳 𝘣𝘭𝘢𝘤𝘬𝘦𝘯𝘦𝘥 𝘴𝘰𝘶𝘭; 𝘐 𝘸𝘢𝘯𝘵 𝘵𝘩𝘰𝘴𝘦 𝘱𝘢𝘳𝘵𝘴 𝘵𝘰𝘰.”
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Reviewed in the United States on June 23, 2025
L
Verified Purchase
Lara Loves Lit
Draper, US
★★★★★ 5
Epic Adventure with FMC coming into her power
Format: Kindle
Honestly, the author, HM Wolfe had me at the dedication: “For my readers. For the ones who suffer silently. You will not break.” About: The Book of Cin takes us on a heart wrenching and inspiring journey of love, betrayal, self discovery and healing where everything Hyacinth thought she knew about the realms - and herself - is turned upside down. As she learns about her own dormant magic, she must also find her courage and make sacrifices to protect her friends as the threat of war hangs over them. My reactions: Holy smokes, this was amazing! First off, I have to say that the trauma Hyacinth experiences from the emotional and physical abuse of her narcissistic boyfriend hit hard for me. It was written so realistically, and I especially appreciate the author’s accurate betrayal of what this type of trauma does to one's self-esteem and character. Her healing journey and growth throughout the story is paced with perfection, and I found myself cheering Cin on every time she reclaimed a bit of herself and discovered newfound strengths. The sexual tension and attraction between her and Landers is the kind of slow burn you crave, and it delivers on making you more than ready for the tension to break. “The only time I want to see you on your knees,” he whispered with a low rumble, “is when those beautiful lips are wrapped around me.” How hot 🔥 is that?! “You are mine.” He said the words not with possession, but in devotion. “You do not belong to me, but I . . . I belong to you.” If you love epic adventures with found family, a morally grey MMC, magic, and an FMC coming into her own power, this needs to be added to your TBR. Oh, and did I mention, they’re dragons?!?!
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Reviewed in the United States on September 14, 2024
S
Verified Purchase
sugar_jean
Los Angeles, US
★★★★★ 4
Great debut!
Format: Hardcover
“I will decimate anyone who tries to hurt you; anyone who lays a hand on you.” DV awareness History erasure Magic suppression Found family Chosen one Slow burn to spice I was happy that there’s a heavy exposure to domestic violence awareness and that Cin found the will and courage to acknowledge and get out of the abusive relationship she was in. She is really working toward taking back her voice, her choice and her power. The story covers themes of loss, betrayal and oppression as well as the power of friendship and having people truly see you. And Landers, our mmc, delicious.
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Reviewed in the United States on June 18, 2025

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