Sunjack SJ-PANL2-400W Quick Start Manual

The Sunjack SJ-PANL2-400W is a 400W portable solar panel designed for off-grid power generation, featuring high-efficiency monocrystalline cells, a durable foldable design, integrated kickstands, multiple output ports (USB-A, USB-C, DC), weather-resistant construction, and compatibility with power stations and direct device charging. Below are key sections for safety, features, setup, operation, specifications, and troubleshooting.

Features at a Glance

Key components: Foldable solar panel array, Output ports, Integrated kickstands, Carrying handle, Cable management.

Safety Information

Read all instructions before use.

1. Electrical Safety: Do not disassemble or modify the panel or cables.
2. Environmental: Use in dry conditions; avoid submersion despite IP65 rating.
3. Sun Exposure: Avoid looking directly at the reflective surface in bright sun.
4. Heat: Panel surface can get hot during operation; handle with care.
5. Children & Pets: Keep away during operation.

WARNING! Never connect the DC output directly to a battery without a proper charge controller. This can cause damage or fire.

Unpacking & Components

Unpack and inspect contents. Ensure all items are present and undamaged.

1. Sunjack SJ-PANL2-400W Solar Panel (folded).
2. User Manual (this document).
3. DC to Alligator Clip Cable (for battery charging with controller).
4. Carrying Case (optional, depending on package).

CAUTION! Inspect for physical damage. Do not use if the glass surface is cracked or cables are frayed.

Specifications

• Model: SJ-PANL2-400W
• Max Power (Pmax): 400W
• Open Circuit Voltage (Voc): ~24V
• Short Circuit Current (Isc): ~11A
• Cell Type: Monocrystalline Silicon
• USB-A Output: 5V DC, 2.4A Max per port (12W total)
• USB-C Output: 5V/9V/12V/15V/20V, 3A (60W Max PD)
• DC Output: 12V-24V, up to 400W (with compatible device)
• Operating Temperature: -4°F to 140°F (-20°C to 60°C)
• Weight: Approx. 22 lbs (10 kg)
• Warranty: 24 Months limited warranty

Setup & Positioning

For optimal performance, position the panel correctly.

1. Unfold: Lay the panel on a flat, clean surface. Unfold all sections.
2. Angle: Use the integrated kickstands to tilt the panel towards the sun. Optimal angle is roughly equal to your latitude.
3. Direction: Face the panel TRUE SOUTH (in Northern Hemisphere) or TRUE NORTH (in Southern Hemisphere).
4. Sunlight: Ensure no shadows (from trees, buildings, etc.) fall on any part of the panel.
5. Ventilation: Allow space behind the panel for heat dissipation.

Tip: Adjust the angle every few hours to follow the sun for maximum output.

Connecting Devices

Connect your device after positioning the panel in sunlight.

1. USB Devices (Phones, Tablets): Use the provided USB-A or USB-C cable to connect directly to the panel's corresponding port.
2. Laptops (USB-C PD): Use a USB-C to USB-C cable supporting Power Delivery (PD). Connect to the panel's USB-C port.
3. Power Station: Use the appropriate DC cable (usually MC4 to XT60 or Anderson) to connect the panel's DC output to your power station's solar input. Check compatibility first.
4. 12V Batteries (via Controller): Connect the panel's DC output to a solar charge controller's input. Then connect the controller's output to your battery using the alligator clip cable. THIS STEP IS CRITICAL.

WARNING! Always connect the device BEFORE exposing the panel to sun. Disconnect the device BEFORE moving or covering the panel.

Charging Operation

Operation is simple once connected.

1. Check Sunlight: Ensure the panel is in direct, unobstructed sunlight.
2. Connect Device: Plug your device or power station into the correct port.
3. Verify Charging: Your device should indicate it is charging. Power stations will show solar input watts.
4. Monitoring: Output will vary based on sun intensity, angle, and temperature. Peak output occurs on cool, sunny days with perfect angle.
5. Disconnecting: Unplug your device first. Fold the panel and store it away.

Note: The panel does not have an ON/OFF switch. Output is live when in sunlight.

Performance Tips

• Clean Surface: Wipe the glass surface with a soft, damp cloth to remove dust, snow, or bird droppings for better efficiency.
• Avoid Heat Buildup: Output decreases as panel temperature rises. Good ventilation helps.
• Partial Shade: Even a small shadow on one cell can drastically reduce total output. Reposition to avoid shade.
• Cable Length: Use the shortest, thickest cables possible to minimize power loss.
• Cold Weather: Solar panels are more efficient in colder weather, but ensure connectors are free of ice.

Care & Storage

Proper care extends the product's life.

1. Cleaning: Unplug all devices. Clean with soft cloth and water if needed. Do not use abrasive chemicals.
2. Drying: Ensure the panel and ports are completely dry before folding and storing.
3. Storage: Fold the panel neatly. Store in a cool, dry place away from direct sunlight when not in use for extended periods.
4. Transport: Use the carrying handle. Avoid dropping or placing heavy objects on the folded panel.

CAUTION! Do not fold or unfold the panel with cables attached. This can damage the ports.

Regulatory Information

FCC Part 15: This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. Copyright © 2025 Sunjack. Sunjack is a trademark. For support, visit www.sunjack.com or contact [email protected].

Troubleshooting

Reset: Disconnect all devices and cover the panel for 2 minutes to reset internal electronics.

Service: [email protected]; www.sunjack.com