Solar charge controller BlueSolar PWM-LCD&USB 12/24V 10A by Victron Energy

BlueSolar PWM-LCD&USB 12/24V 10A by Victron Energy is a compact solar charge controller designed for small off-grid photovoltaic systems. It supports both 12 V and 24 V battery configurations and provides up to 10 A of charging current using a PWM charging algorithm. The built-in LCD displays charging status and settings, while the integrated USB port allows convenient charging of small devices directly from the PV system. The controller performs essential battery protection functions to prevent overcharge and improve the dependability of standalone solar setups.

Advantages

The controller combines PWM charge regulation with a clear LCD readout for system monitoring and adjustment. Its automatic detection of system voltage simplifies installation and reduces configuration errors. The USB output adds practical device charging without extra converters. Robust electrical protection and straightforward user controls make this unit suitable for reliable, low-maintenance operation in small-scale solar installations.

Suitable for

• Small off-grid cabins and camping power systems
• RV and caravan 12 V or 24 V solar setups
• Battery charging for small renewable energy projects
• Backup power systems for remote sensors and communications

Key specifications

• Supported system voltages: 12 V and 24 V (automatic detection)
• Maximum charging current: 10 A
• Charging algorithm: PWM (Pulse Width Modulation)
• Display: built-in LCD for status and settings
• USB output: integrated port for charging small devices
• Battery protection: overcharge prevention and basic safety features

How to use

Connect the solar panel array, battery and load according to the polarity and wiring instructions provided with the unit. The controller automatically detects whether the system is 12 V or 24 V and will manage charging with the PWM algorithm up to the 10 A limit. Use the LCD to monitor charging status, view battery voltage and adjust available settings where applicable. The USB port can be used to charge phones or similar small devices while the system is energized; observe the controller's maximum current limits.

Recommendations

Install the controller in a dry, ventilated location away from direct sunlight and excessive heat. Use appropriately sized cables and secure terminals to minimize voltage drop. For consistent battery life, select battery settings that match the battery chemistry and follow manufacturer guidelines for both the batteries and photovoltaic modules.