1. Introduction
The FOSSiBOT FAC580 is a high-efficiency alternator charger designed to power your FOSSiBOT power station or compatible third-party power stations directly from your vehicle's alternator. Delivering up to 580W of power, it charges significantly faster than traditional in-vehicle cigarette chargers, ensuring your devices are ready for use during your journeys. This manual provides essential information for safe installation, operation, and maintenance of your FAC580 charger.
2. Safety Information
Please read all safety instructions carefully before using the FOSSiBOT FAC580 Alternator Charger. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Ensure the charger is installed in a well-ventilated area to prevent overheating.
- Do not expose the charger to water, rain, or excessive moisture.
- Keep the charger away from flammable materials and explosive gases.
- Always ensure the vehicle's engine is off and the FAC580 switch is in the off position before connecting or disconnecting cables to the car battery.
- Use only the provided cables and accessories.
- Do not attempt to disassemble or modify the charger. Contact customer support if service is required.
- The FAC580 features multi-layer protection including short-circuit, over-current, over-heat, and over-voltage protection to safeguard your car battery, charger, and power station.
3. Package Contents
Verify that all items are present in your package:
- 1 x FOSSiBOT FAC580 Alternator Charger
- 1 x Input Cable (5M)
- 1 x Output Cable (0.5M)
- 4 x Screws
- 1 x Screwdriver
- 1 x User Manual

4. Product Overview
The FOSSiBOT FAC580 is designed for ease of use and efficient charging. Familiarize yourself with its components:

- Wire terminal to MC4: Connects to your power station.
- Power indicator light: Displays the product's operational status.
- Fan: Provides active cooling for product heat dissipation.
- Switch button: Controls power on/off and selects charging modes.
- Wire crimping terminal to O-ring terminal: Connects to the car battery.
The FAC580 is available in two colors: Classic Black and Vibrant Green.


5. Installation Guide
Follow these steps to properly install your FOSSiBOT FAC580 Alternator Charger in your vehicle:

- Step 1: Connect the Cables
Fix the input and output lines to the FAC580 with the provided screws. Before final installation, check that the product functions properly. Connect the output and input cables of the FAC580 correctly. - Step 2: Track
Route the input cable from the vehicle's interior to the car battery compartment. Ensure the cable is securely routed and not exposed to moving parts or sharp edges. - Step 3: Wire to Battery
Ensure the FAC580 switch is in the off position. Connect the input cable to the car battery: the red wire connects to the Battery positive (+) terminal, and the black wire connects to the Battery negative (-) terminal. - Step 4: Fixed
Securely fix the FAC580 onto a suitable surface within your car, such as the car wall or trunk, using the provided screws. Ensure it is stable and won't move during driving.

- Step 5: Connect Power Station
Connect your power station to the FAC580 using the XT90-MC4 cable. - Step 6: Select Mode & Start Charging
Switch the FAC580 to the desired mode to begin charging.
6. Operating Instructions
The FAC580 features a two-stage power switch to adjust output power based on input voltage, ensuring efficient and safe charging. The charger automatically stops charging if the input voltage is out of range.

6.1. Charging Modes
- Mode 1 (Recommended for Driving): Activate this mode during journeys for fast car charging.
- Input Voltage >14V: Auto boost to 580W (Fast Charging)
- Input Voltage 13.2V-14V: 300W Max Output

Image: Depicts the FAC580 charging a power station in a vehicle while driving, utilizing Mode 1. - Mode 2 (Emergency Use Only): Use this mode when you need urgent power with the engine off. The FAC580 instantly powers your power station and protects your car's battery while charging.
- Input Voltage >14V: Auto boost to 580W (Fast Charging)
- Input Voltage 13.2V-14V: 300W Max Output

Image: Shows the FAC580 providing emergency power to a power station from a vehicle with the engine off, using Mode 2.
6.2. Automatic Cut-off
- Input Voltage <13.2V: The charger automatically cuts off to prevent draining your car battery.
7. Specifications
Detailed technical specifications for the FOSSiBOT FAC580 Alternator Charger:

| Category | Detail |
|---|---|
| General | Brand: FOSSiBOT Type: Alternator Charger Model: FAC580 Color: Black (also available in Gray) |
| Power Input Specifications | Charging Voltage Range: 12V - 18V / 24V - 33V Under-Voltage Protection (UVP): 12V Under-Voltage Recovery: 12.5V Over-Voltage Protection (OVP): 35V Over-Voltage Recovery: 31V |
| Output Specifications | Rated Output Power: 580W No-Load Output Voltage: 45 - 48V Max Output Current: 15A Charging Efficiency: 92% Standby Power Consumption: < 3W |
| Weight & Size | Product Weight: 0.8kg Package Weight: 1kg Product Size (L x W x H): 18.2 x 16.2 x 4.7 cm Package Size (L x W x H): 19 x 17 x 5 cm |

8. Troubleshooting
If you encounter issues with your FOSSiBOT FAC580, refer to the following common problems and solutions:
- Charger not turning on or charging:
- Check all cable connections to ensure they are secure and correctly wired to the car battery and power station.
- Verify the car battery voltage. If the input voltage is below 13.2V, the charger will automatically cut off to protect the car battery. Start the vehicle's engine to increase alternator output.
- Ensure the FAC580 switch is in the correct operating mode (Mode 1 or Mode 2).
- Slow charging speed:
- Ensure the vehicle's engine is running and the alternator is providing sufficient power. Mode 1 (driving mode) is designed for optimal charging during journeys.
- Check the input voltage. If it's between 13.2V-14V, the output will be limited to 300W. For 580W fast charging, the input voltage needs to be >14V.
- Charger feels hot:
- The FAC580 has a professional cooling system with fans. Ensure the vents are not blocked and there is adequate airflow around the unit.
- The charger has over-heat protection and will reduce output or shut down if it gets too hot. Allow it to cool down.
9. User Tips
- Cable Inclusion: The FAC580 package includes all necessary cables (5M input cable, 0.5M output cable) for installation in your vehicle, along with screws and a screwdriver.
- Optimal Placement: For best performance and cooling, install the FAC580 in a location with good air circulation, such as the trunk or a dedicated compartment, away from direct sunlight or heat sources.
- Engine-Off Charging: When using Mode 2 for emergency engine-off charging, monitor your car battery's voltage to ensure it doesn't drop too low, although the charger has built-in protection.
10. Warranty and Support
The FOSSiBOT FAC580 Alternator Charger comes with a 1-year warranty. For technical support, warranty claims, or any questions regarding your product, please contact your retailer or FOSSiBOT customer service. Please have your purchase receipt and product model number ready when contacting support.