Renogy E.FLEX 50 User Manual

The Renogy E.FLEX 50 is a portable, flexible monocrystalline solar panel designed for off-grid power applications. It features a 50W power output, high-efficiency solar cells, durable ETFE laminate construction, waterproof rating (IP67), integrated kickstands, and MC4 connectors. Ideal for charging 12V batteries, powering RVs, boats, camping, and emergency backup. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Connections 6. Connecting to Devices 7. Operation & Charging 8. Safety Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Flexible solar panel, MC4 connectors, integrated kickstands, junction box with bypass diodes.

Feature	Description
High-Efficiency Cells	Monocrystalline solar cells with high conversion efficiency
Flexible Design	Bendable up to 30 degrees for curved surfaces
ETFE Laminate	Durable, weather-resistant coating
IP67 Waterproof	Protected against dust and temporary immersion
Integrated Kickstands	Adjustable stands for optimal sun angle
MC4 Connectors	Standard connectors for easy system integration
Lightweight	Portable design for easy transport
Bypass Diodes	Minimizes power drop from partial shading
Corrosion-Resistant	Suitable for marine and outdoor environments
Plug-and-Play	Easy connection to charge controllers or batteries

Installation

Unpack and inspect contents. Choose optimal location with direct sunlight.

Position panel: Place on flat or curved surface; use included adhesive strips or mounting holes if needed.
Adjust angle: Deploy kickstands for optimal sun exposure (adjust seasonally).
Connect to system: Use MC4 connectors to link to charge controller or battery.
Secure wiring: Route cables safely to avoid damage or tripping hazards.

WARNING! Do not install near flammable materials. Ensure all connections are dry before powering.

First-Time Setup

Connect panel to your power system; verify operation.

Connect to charge controller: Attach MC4 connectors from panel to controller input.
Connect controller to battery: Follow controller manual for proper battery connection.
Verify polarity: Ensure positive (+) and negative (-) connections are correct.
Check output: Use multimeter or controller display to confirm voltage/current.
Optimize placement: Adjust panel angle toward the sun for maximum output.

CAUTION! Never connect panel directly to battery without a charge controller to prevent damage.

Specifications

Maximum Power (Pmax): 50W
Open Circuit Voltage (Voc): 22.3V
Short Circuit Current (Isc): 2.94A
Maximum Power Voltage (Vmp): 18.6V
Maximum Power Current (Imp): 2.69A
Cell Type: Monocrystalline Silicon
Dimensions: 26.8 x 16.5 x 0.08 in (680 x 420 x 2 mm)
Weight: 2.2 lbs (1.0 kg)
Operating Temperature: -40°F to 185°F (-40°C to 85°C)
Max System Voltage: 600V DC
Connector Type: MC4 (male/female pair included)
Warranty: 12-year product, 25-year power output

Controls and Connections

Panel has no active controls; operation is passive. Junction box contains bypass diodes. Connections via MC4 connectors.

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

Kickstands: Fold out to adjust tilt angle; fold flat for storage.

Mounting: Use adhesive backing or corner grommets for permanent installation.

Connecting to Devices

Connect to charge controller, battery (with controller), or power station.

Charge controller: Connect panel to controller's solar input terminals.
Battery: Always use a charge controller between panel and battery.
Power station: Use appropriate adapter cable if needed.
Multiple panels: Connect in series or parallel per system design.

Tip: Disconnect all connections before handling wiring. Keep connectors clean and dry.

Operation & Charging

Panel generates DC power when exposed to sunlight.

Ensure sunlight: Place panel in direct sun, avoid shading.
Monitor output: Check charge controller for charging status.
Seasonal adjustment: Change tilt angle with kickstands for best performance.
Storage: Fold kickstands, clean surface, store in cool, dry place.
Performance: Output varies with sunlight intensity, angle, temperature, and cleanliness.

WARNING! Do not attempt to disassemble junction box. Avoid walking on panel.

Safety Features

Bypass diodes reduce hotspot heating from shading. ETFE laminate provides electrical insulation. IP67 rating protects against water ingress.

Electrical Safety: Panel produces DC voltage when illuminated—handle with care.

Care & Maintenance

Regular cleaning maintains efficiency. Disconnect before cleaning.

Cleaning: Use soft cloth and mild soapy water; rinse with clean water.
Inspection: Check for physical damage, loose connections, or debris.
Connectors: Keep MC4 connectors free of dirt and moisture.
Storage: Store in protective case or bag when not in use.

CAUTION! Do not use abrasive cleaners or high-pressure water. Do not bend beyond 30 degrees.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
No output power	Shading, dirty panel, bad connections	Clean panel, check all connections, ensure full sun exposure.
Low power output	Poor angle, cloudy weather, partial shade	Adjust panel angle, remove obstructions, check for shading.
MC4 connectors not mating	Dirt/debris, wrong gender	Clean connectors, ensure correct pairing (male to female).
Panel overheating	Poor ventilation, excessive sun	Ensure rear ventilation, avoid confined spaces.
Physical damage	Impact, excessive bending	Inspect for cracks; contact support if damaged.
Battery not charging	Faulty controller, wrong wiring	Verify controller operation and correct polarity.

Reset: Disconnect and reconnect all connections.

Service: Contact Renogy support for warranty claims or repairs.