Victron BlueSolar PWM DUO-LCD-USB 12/24V-20A Solar Charge Controller

The Victron BlueSolar PWM DUO-LCD-USB 12/24V-20A is a reliable and efficient PWM solar charge controller designed to charge two separate battery banks simultaneously. It is ideal for boats, caravans, motorhomes, and off-grid solar systems where both a starter battery and a service battery need to be maintained from a single solar array.

This DUO charge controller intelligently distributes charging current between two batteries, with a programmable charge current ratio (default 50/50). This ensures both batteries remain properly charged and protected, reducing the risk of deep discharge and extending battery life.

The built-in LCD display provides real-time system information, including battery voltage, charging status, and load output. An integrated USB port allows direct charging of mobile devices, making it especially practical for mobile and marine applications.

Supporting 12V and 24V systems, the controller includes preset charging profiles for Gel, AGM, and Flooded lead-acid batteries, ensuring optimal and safe charging. The internal temperature sensor automatically adjusts charging parameters based on battery temperature, with support for an optional remote temperature sensor for increased accuracy.

As expected from Victron Energy, the BlueSolar PWM DUO is fully protected against overcurrent, short circuit, and reverse polarity, providing robust and dependable operation even in demanding environments.

Key Features

• PWM solar charge controller

• Charges two battery banks simultaneously

• Ideal for marine, caravan, RV, and off-grid systems

• 12V / 24V automatic system detection

• 20A maximum charge current

• Programmable charge current ratio (starter vs service battery)

• Battery presets for Gel, AGM, and Flooded batteries

• Built-in LCD display for system monitoring

• Integrated USB charging port

• Internal temperature compensation

• Optional remote temperature sensor support

• Full electronic protection: overcurrent, short circuit, reverse polarity

Applications

• Boats and yachts

• Caravans and motorhomes

• Overlanding vehicles

• Backup and off-grid solar systems