Carbest POWER SOLAR PANEL 135 User Instruction

The Carbest POWER SOLAR PANEL 135 is a high-efficiency 135W monocrystalline solar panel designed for off-grid power generation, charging 12V/24V battery systems, and powering small appliances. It features durable tempered glass, IP65 waterproof rating, corrosion-resistant aluminum frame, MC4 connectors, and bypass diodes for partial shading performance. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Monocrystalline solar cells, Tempered glass surface, Aluminum frame, Junction box with bypass diodes, MC4 connectors, Mounting holes.

Installation

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

1. Choose location: Select area with maximum sunlight exposure, minimal shading.
2. Mounting: Use provided mounting holes with appropriate brackets (not included).
3. Orientation: Angle panel toward sun (typically 15-40 degrees depending on latitude).
4. Secure wiring: Route cables safely, avoid sharp bends or pinching.

WARNING! Do NOT install during rain, strong wind, or thunderstorms. Panel is heavy; use proper lifting techniques and secure mounting to prevent falls.

First-Time Setup

Connect panel to charge controller or system; verify polarity.

1. Connect cables: Attach MC4 connectors from panel to extension cables (if needed).
2. Connect to charge controller: Ensure panel positive (+) connects to controller positive input.
3. Connect battery: Connect controller to battery following manufacturer instructions.
4. Verify operation: Check controller display for voltage/charging status.

CAUTION! Always connect battery before connecting solar panel to controller to avoid damage. Disconnect panel during wiring by covering with opaque material.

Specifications

• Maximum Power (Pmax): 135W
• Open Circuit Voltage (Voc): 22.5V
• Short Circuit Current (Isc): 7.65A
• Optimum Operating Voltage (Vmp): 18.5V
• Optimum Operating Current (Imp): 7.30A
• Maximum System Voltage: 600V DC
• Power Tolerance: ±3%
• Cell Efficiency: >20%
• Temperature Coefficient of Pmax: -0.40%/°C
• Temperature Coefficient of Voc: -0.30%/°C
• Warranty: 25-year linear power output, 10-year product warranty

Controls and Connections

Panel has no active controls; operation is passive. Junction box contains bypass diodes and MC4 connector ports.

Connections: Positive (+) MC4 female connector, Negative (-) MC4 male connector (standard polarity).

System Components Needed: Charge controller (MPPT or PWM recommended), Battery (12V/24V), DC load or inverter, Mounting hardware, Appropriate gauge cables.

Connecting to System

Series/Parallel configurations possible for higher voltage/current.

1. Turn off all system components before connecting.
2. Series connection: Connect positive of one panel to negative of next (increases voltage).
3. Parallel connection: Connect all positives together, all negatives together (increases current).
4. Use appropriate combiner boxes and fuses for multiple panels.
5. Select proper cable gauge based on distance and current.

Tip: Label all cables for easy identification. Use weatherproof conduit for outdoor runs.

Operation & Performance

Panel generates DC electricity when exposed to sunlight.

1. Optimal angle: Adjust seasonally for maximum yield (steeper in winter, shallower in summer).
2. Monitoring: Use charge controller display to check voltage, current, and power output.
3. Cleaning: Keep surface clean for maximum efficiency (see Maintenance section).
4. Shading: Avoid partial shading as it significantly reduces output (bypass diodes help minimize loss).
5. Temperature: Performance decreases slightly at high temperatures (see temperature coefficients).

WARNING! Never short-circuit the panel terminals. Output voltage can cause severe shock or fire hazard.

Safety Features

Bypass Diodes: Allow current to bypass shaded cells, preventing hot spots and damage. Waterproof Junction Box: Sealed to IP65 standards. Frame Grounding: Provides grounding point for lightning/surge protection (use proper grounding equipment).

Care & Maintenance

Regular inspection ensures long-term performance.

1. Cleaning: Use soft cloth, water, and mild detergent if needed. Rinse with clean water.
2. Inspection: Check for cracks, delamination, or discoloration quarterly.
3. Connections: Verify MC4 connectors are secure and weatherproof annually.
4. Mounting: Ensure all bolts and brackets remain tight.

CAUTION! Do NOT use abrasive materials, high-pressure water, or harsh chemicals. Do NOT walk on panel. Perform maintenance during low-light conditions or cover panel completely.

Regulatory Information

Certifications: CE, RoHS compliant. Meets IEC 61215 and IEC 61730 standards for design qualification and safety. Copyright © 2025 Carbest Power Solutions; all trademarks property of Carbest International Ltd. For technical support, visit www.carbestpower.com or contact +1-800-555-ENERGY.

Troubleshooting

Testing: Use multimeter to measure Voc in full sunlight (should be ~22.5V).

Service: +1-800-555-ENERGY; www.carbestpower.com/support