Victron Energy BlueSolar PWM DUO Solar Charge Controller, 12/24V, 20A, LCD, USB, Dual Battery

Overview

The Victron Energy SCC010020060 is a BlueSolar PWM DUO LCD and USB solar charge controller for 12/24V battery systems with a 20A rated charge current. It suits small solar charging setups where one panel array needs to maintain two separate battery banks, such as a starter battery and a house or service battery on a boat.

The controller uses PWM charging with programmable bulk, absorption and float stages, and the LCD gives status monitoring and setup access from the unit. Automatic system voltage detection supports 12V and 24V operation for lead-acid battery systems, while LiFePO4 charging is supported for batteries that have an internal BMS.

Two 5V USB outputs provide up to 2A combined for charging small USB devices, and the common negative layout helps with integration into many low-voltage DC installations. The enclosure is IP20, so it belongs in a dry, protected location rather than an exposed cockpit, deck locker, or wet engine space.

Key features

• 12/24V PWM solar charge controller with a 20A rated charge current.
• Two separate battery outputs for charging a starter battery and a service or house battery from one controller.
• Programmable charge current ratio for adjusting how charging is shared between the two battery outputs.
• Programmable three-stage charging with bulk, absorption, and float stages.
• Battery algorithms for AGM, GEL, flooded lead-acid, and LiFePO4 batteries with an internal BMS.
• LCD display for system status monitoring and controller setup.
• Two 5V USB ports with up to 2A combined output for USB device charging.
• Programmable lighting control and load disconnect functions for small DC load management.
• Protection against reverse polarity connection of the solar panels or battery, plus over-temperature protection.
• Remote battery temperature sensor included for temperature-compensated charging.

Installation and setup

The unit measures 101.5 x 184.0 x 47.1 mm and weighs 0.3 kg, so it can fit on a compact electrical panel while still leaving room to view the LCD and access the terminals. Its IP20 enclosure is not sealed against spray or washdown, which makes a dry cabin, electrical locker, or sheltered equipment panel the better mounting location.

The terminals accept up to 16 mm² or AWG6 conductors. Cable size, fuse placement, and battery isolation should be matched to the vessel's DC system and the controller's 20A charge rating.

Solar and battery compatibility

For a 12V battery system, use 36-cell solar panels. For a 24V battery system, use a 72-cell panel or two 36-cell panels in series. Maximum solar voltage is 28V on 12V systems and 55V on 24V systems, so the panel array voltage should be checked before connection.

The controller supports AGM, GEL, flooded lead-acid, and LiFePO4 batteries with an internal BMS. Automatic 12/24V detection applies to standard 12V and 24V operation, but LiFePO4 setups require the correct voltage setting rather than relying on automatic detection.

Use on board

This controller is a practical fit for boats using solar to maintain both starting and house batteries while moored, anchored, or between trips. The dual battery outputs are useful where the engine start battery needs maintenance charging without giving up solar support for cabin lighting, instruments, pumps, or other house-bank loads.

The USB outputs can handle simple device charging at the controller, which is useful in a cabin, nav-station area, or sheltered equipment space. For exposed helm or deck installations, use a separate marine-rated USB outlet in a weather-protected circuit instead of relying on the controller enclosure for splash protection.

What's included

• BlueSolar PWM DUO LCD and USB 12/24V 20A charge controller
• Remote battery temperature sensor

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Orders of $100 or more qualify for free shipping when eligible. For orders under $100, shipping costs are calculated at checkout based on destination, package weight, and selected service. International shipping is available for eligible products, and certain items may require additional handling, warehouse transfers, or may ship directly from the manufacturer, which can affect processing time.

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We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

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Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

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Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

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