AZO Digital PWM SOL-30ED 12/24V 30A Solar Charge Controller with LCD Display

For solar installations that demand reliable battery regulation without the complexity of high-end MPPT units, the AZO Digital PWM SOL-30ED delivers a straightforward, robust solution. This 30-amp controller automatically detects 12V or 24V systems and uses a proven three-stage PWM charging algorithm to keep lead-acid batteries in peak condition. The backlit LCD screen gives you instant access to charging status, battery voltage, and load output, while dual USB ports let you charge phones or small devices directly from the sun.

Highlights

• 30A PWM charge controller for 12V/24V off-grid solar systems
• Auto-sensing system voltage – no manual switching required
• Clear backlit LCD display shows charging status, battery level, and load information
• Two USB outputs (5V/2A total) for charging mobile devices
• Compatible with sealed, gel, and flooded lead-acid batteries
• Comprehensive protection: overcharge, over-discharge, overload, short circuit, reverse polarity, and reverse current
• Common positive grounding for easy integration with existing systems

In daily use

The SOL-30ED is built for continuous off-grid duty. Its intelligent PWM charging adjusts the charge current as the battery approaches full capacity, preventing overcharging and extending battery life. The adjustable voltage setpoints (float, discharge stop, reconnect) allow you to fine-tune the controller to your specific battery bank. The front-panel LCD and LED indicators give you a quick overview of system health, while the low self-consumption (<10mA) means the controller won't drain your battery overnight. Whether you're powering a cabin, RV, boat, or remote monitoring station, this controller handles up to 360W of solar at 12V or 720W at 24V.

Full specifications

• Controller type: PWM (Pulse Width Modulation)
• System voltage: 12V / 24V auto-sensing
• Max charge current: 30A
• Max discharge current: 30A
• Max PV input voltage: <50V
• Max PV input power: 360W (12V) / 720W (24V)
• Battery compatibility: Sealed, Gel, Flooded lead-acid
• Display: Backlit LCD
• USB output: 2x USB 5V/2A
• Self-consumption: <10mA
• Operating temperature: -35°C to +60°C
• Protection: Overcharge, over-discharge, overload, short circuit, reverse polarity, reverse current
• Charging algorithm: 3-stage (Bulk, Absorption, Float)
• Equalization voltage (12V): 14.4V (flooded)
• Float voltage (12V): 13.7V (adjustable)
• Discharge stop voltage (12V): 10.7V (adjustable)
• Discharge reconnect voltage (12V): 12.6V (adjustable)
• Grounding: Common positive

Final note

The AZO Digital PWM SOL-30ED is a dependable, no-nonsense charge controller that covers all the essentials for small to medium off-grid solar systems. Its clear display, USB convenience, and robust protection features make it a practical choice for anyone who values simplicity and long-term reliability.