AeternaSol PWM Solar Charge Controller 12V 20A | PD 22W & QC 18W USB-C Output

When you depend on solar power for daily routines or weekend getaways, a calm, reliable charge controller can make all the difference. The AeternaSol PWM Solar Charge Controller 12V20A is engineered for 12V battery systems and works with common panels up to 300W. With upgraded 20A PWM charging, you can expect a steady, efficient flow from sun to battery, helping you maximize energy use without overcomplicating setup.

This device isn’t just a charger; it’s the quiet guardian of your off-grid day. It optimizes charging through intelligent regulation, minimizing energy loss while keeping your battery bank healthy. A key note: there’s no polarity converter included, so connect positives and negatives correctly to protect your gear. The result is a long-lasting, dependable solution for campers, tiny homes, or remote work sites.

Why this controller stands out

• Efficient 20A PWM charging for faster, steadier battery replenishment within 12V systems.
• Zero idle drain and built-in reverse current protection safeguard battery life after sunset.
• Intuitive LCD display and clear indicators for quick status checks—ideal for on-the-go monitoring.
• Dual output with USB Type-C and standard USB ports to power or top up devices directly from solar power.

Smart monitoring and versatile use

• Supports multiple battery chemistries and customizable charging profiles for lead-acid, lithium, and more.
• SAE connectors provide quick, secure connections that stay put during activity or travel.
• 6-in-1 protection network guards against overcharge, over-voltage, reverse current, reverse polarity, short-circuit, and overheating.
• Compact, plug-and-play design makes it suitable for camping, RV life, off-grid projects, or emergency kits.

Beyond the spec sheet, the controller is built for reliability and peace of mind: monitor battery status at a glance, enjoy controlled power delivery, and plan energy usage with fewer surprises. If your setup evolves, the built-in safeguards and flexible charging options can adapt without requiring a full system overhaul.

Warranty and support are straightforward: a 1-year warranty with lifetime technical support and 24/7 assistance, so you’re covered if questions arise during installation or operation.