FA-500AF 500W Peak Modified Sine Wave Solar Inverter with Battery Reverse Polarity Protection and Built-in 5V 1A USB Port

FA-500AF is the upgraded anti-reverse version of Sunchonglic FA-500A 12V solar inverter. It delivers 350W continuous rated power with 500W peak surge power, specially designed for small 12V battery off-grid solar kits. The AF model adds battery reverse connection protection that the basic A version does not have, effectively avoiding circuit burnout caused by reversed battery wiring during installation, greatly lowering maintenance loss for solar installers and end users. This compact power inverter is widely used for rural off-grid electricity, home power outage backup, camping and RV portable power supply.

• Unique Battery Reverse Protection (AF Exclusive Function) - Built-in protective circuit to block damage if battery positive/negative poles are misconnected, safer for amateur solar installation.
• Convenient 5V 1A USB Charging Interface - Directly charge cell phones, power banks, Bluetooth speakers and other small digital gadgets without extra adapters.
• Independent Dual Working Circuits - Inverter output and built-in charging module run separately without signal interference, supporting long-hour stable operation.
• Stable Modified Sine Wave Output - Perfect match for low-power household appliances including LED lights, desk fans, small TVs and mini water pumps.
• Comprehensive Multi-Layer Safety Guard - Low voltage cut-off, over voltage lock, overload alarm and short-circuit auto-shutdown, fully protect batteries and connected loads.
• Large Aluminum Heat Dissipation Housing - Grooved alloy shell accelerates heat emission, anti-rust and durable for both indoor and outdoor solar usage.

We are an established manufacturer of Solar Energy Photovoltaic Products with decades of industry experience. Our factory specializes in producing Solar Power Inverters, AGM/GEL Lead Acid Battery Chargers, Solar Charge Controllers, and related solar energy systems. Sunchonglic brand products represent quality and reliability in the renewable energy sector.