RENOGY 2775 E All off Grid Solar System Instruction Manual

: June 13, 2024
: Renogy

Table of Contents

RENOGY 2775 E All off Grid Solar System
Product Information
Product Usage Instructions
Important Safety Instructions
General Safety Information
General Information
Key Features
Included Components
Controller Panel Structure
Controller Operation
System Status Icons
System Status Troubleshooting
Maintenance
Frequently Asked Questions
Technical Specifications
Dimensions
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RENOGY 2775 E All off Grid Solar System

Product Information

The Renogy 100W & 50W Eclipse Lightweight Suitcase is a portable solar panel system designed for charging batteries. It comes with a 10A PWM Charge Controller that regulates the voltage and amperage from the solar panel to properly charge the battery bank. The system includes MC4 to Alligator Clips with a fuse for connecting the charge controller to the battery. The controller panel has a built-in LCD screen that displays important information such as battery voltage, battery capacity, temperature, error codes, and load mode. The system has five load working modes, including pure light control mode, light control + time control mode, manual mode, debugging mode, and always-on mode. The load mode can be easily adjusted using the red button on the controller. The system also features safety measures such as error code indications for battery over-discharge, battery overvoltage, load short circuit, overload, and controller overheating.

Product Usage Instructions

Connect the battery: Ensure the correct connection to the battery. If connected correctly, the controller screen will light up. Otherwise, double-check the connection.
Connect the solar panel: Connect the solar panel to the controller. Make sure there is sufficient sunlight for the panel to generate a higher voltage than the battery. The sun icon on the LCD screen will indicate if the solar panel is connected properly.
Connect the load: Connect your load (electrical devices) to the controller’s load output terminal. Ensure that the current does not exceed the controller’s rated current.
Grounding (if needed): If grounding is required, ground the positive pole of the controller.
Load Mode Setting: To adjust the load mode, long press the red button in any mode to enter the load mode setting interface. The load mode will start flashing. Short press the button to cycle through the available load modes. Long press the button again to save and exit the mode setting, or wait for 10 seconds for the system to save and exit automatically.
Manually Switching On/Off Load: In manual mode (load mode 15), short press the button in any interface to switch the load on or off. Note that there may be a delay in displaying the load icon on the LCD screen after switching it on.

It is important to follow these instructions for safe and properoperation of the Renogy 100W & 50W Eclipse Lightweight Suitcase. Refer to the error code list in the user manual for troubleshooting any potential issues that may arise.

Important Safety Instructions

Please save these instructions.
This manual contains important safety, installation, and operating instructions. The following symbols are used throughout the manual to indicate potentially dangerous conditions or important safety information.
WARNING : Indicates a potentially dangerous condition. Use extreme caution when performing this task.
CAUTION: Indicates a critical procedure for safe and proper operation of the controller

NOTE : Indicates a procedure or function that is important to the safe and proper operation of the controller.

General Safety Information

Read all the instructions and cautions in the manual before beginning the installation.
There are no serviceable parts for this controller. Do NOT disassemble or attempt to repair the controller.
Make sure all connections going into and from the controller are tight.

Battery Safety

Use only sealed lead-acid, flooded, gel or lithium batteries which must be deep cycle.
Explosive battery gases may be present while charging. Be certain there is enough ventilation to release the gases.
Be careful when working with large lead acid batteries. Wear eye protection and have fresh water available in case there is contact with the battery acid.
Carefully read battery manuals before operation.
Do NOT let the positive (+) and negative (-) terminals of the battery touch each other.
Recycle battery when it is replaced.
Over-charging and excessive gas precipitation may damage the battery plates and activate material shedding on them. Too high of an equalizing charge or too long of one may cause damage. Please carefully review the specific requirements of the battery used in the system.
Equalization is carried out only for non-sealed / vented/ flooded / wet cell lead acid batteries.
Do NOT equalize sealed / VRLA type AGM / Gel cell batteries UNLESS permitted by battery manufacturer.

General Information

The Renogy 100W & 50W Eclipse Lightweight Suitcase combines highly efficient monocrystalline solar panels with a 10A PWM charge controller to create an easy-to-use, ‘plug and play’ system.
This system is specifically designed for mobile off-grid applications, where space and weight limitations are abundant. The models support 12V/24V deep cycle battery varieties such as sealed-lead acid, gel, and flooded.
The alligator clips included in this package make it easy to connect the panel to a battery in seconds. If one ever needs to connect a battery with a different type of end terminal, the alligator clips are attached via MC4 Connectors.

Key Features

High Efficiency monocrystalline solar cell with high conversion rate
Lightweight and durable design with side bag
Easy to read LCD displaying solar charge information
Upgraded 3-stage PWM charging algorithm
Protection against: overcharge, over discharge, overload and short-circuit.
Positive ground controller.
A wide range of load working modes facilitate the product’s application to different types of loads.

Included Components

10A PWM Charge Controller
Regulates the voltage and amperage coming from the solar panel to properly charge the battery bank.
MC4 to Alligator Clips w/ Fuse
Used for connecting charge controller to battery. The entire cable from the charge controller to the alligator clips measures 3.3 feet with an in-line fuse of 10A

Controller Panel Structure

RENOGY-2775-E-All-off-Grid-Solar-System-fig-2

Controller Operation

Step 1: Connect the battery. If the connection is correct, the controller screen lights up; otherwise, check whether the connection is correct.
Step 2: Connect the solar panel. If sunlight is present and strong enough (the solar panel voltage is greater than battery voltage), the sun icon on the LCD screen is on; otherwise, check whether the connection is correct.
Step 3: Connect the load. Connect the load leads to the controller’s load output terminal, and the current shall not exceed the controller’s rated current.
** The controller has a common positive pole inside. If grounding is needed, ground the positive pole.

Normal Sequencing Display
The following menus are shown in an automatic cycle on the screen, with an interval of 3s.

RENOGY-2775-E-All-off-Grid-Solar-System-fig-3

Setting Menu on LCD Screen
Long press the red button in any mode to enter the load mode setting interface, and the load mode begins to flash. Short press the button to adjust the load mode, and long press the button again to save and exit mode setting or wait for 10s to let the system save and exit automatically. RENOGY-2775-E
-All-off-Grid-Solar-System-fig-4

Five Load Working Modes

Pure light control (0): When sunlight disappears, and the light intensity drops to the starting point, the controller initiates a one-minute delay (settable) to confirm the starting signal, and then switches on the load for operation. When sunlight emerges, and the light intensity reaches the starting point, the controller initiates a one-minute delay to confirm the shutting-down signal, and then shuts down the output to stop the load’s operation.
Light control + time control (1 to 14): The starting process is the same as pure light control. After operating for a preset period (settable from 1 to 14 hours), the load stops operation automatically.
Manual mode (15): In this mode, the user can switch the load on or off by the button, no matter whether it’s day or night.
Debugging mode (16): In cases of 6V with light signals, the load will be shut off. In cases of 5V (varies according to the preset light-controlled voltage and system voltage) without light signals, the load will be switched on. This mode enables fast check of the correctness of system installation during installation and debugging.
Normal on (17): The energized load keeps in output state.

LED Display	Mode
00	Pure light control mode
01-14	Light control + time control (1 to14 hours)
15	Manual mode (default)
16	Debugging mode
17	Always on mode

Manually Switching On/Off Load
When the load mode is set to 15 (manual mode), short press the button (non- setting mode) in any interface to switch on or off the load.

RENOGY-2775-E-All-off-Grid-Solar-System-fig-5

Note: As load start is a type of soft start, display of the load icon on the LCD screen will be delayed after the load is switched on.

System Status Icons

Error Code List

Code on LCD Screen	Corresponding Error
E0	No Error
E1	Battery Over-discharged
E2	Battery Overvoltage
E4	Load short circuit
E5	Overload
E6	Controller overheated

System Status Troubleshooting

Description	Troubleshoot

Battery over voltage

| Use a multi-meter to check the voltage of the battery. Make

sure the battery voltage is not exceeding the rated specification of the charge controller. Disconnect battery.

Charge controller does not charge during daytime when the sun is shining on the solar panels.

| ****

Confirm that there is a tight and correct connection from the battery bank to the charge controller and the solar panels to the charge controller. Use a multi-meter to check if the polarity of the solar modules has been reversed on the charge controller’s solar terminals.

Everything is connected correctly, but the LCD on the controller does not turn on

| ****

Check the rated battery voltage. The LCD will not display on the charge controller unless there is at least 9V coming from the battery bank.

---|---

Maintenance

For best controller performance, it is recommended that these tasks be performed from time to time.

Check wiring going into the charge controller and make sure there is no wire damage or wear.
Tighten all terminals and inspect any loose, broken, or burnt up connections
Make sure readings in the LCD and LED are consistent.

Frequently Asked Questions

Q. Can the kit charge two or more 12V batteries connected in parallel?
A. Yes, it’s possible if the batteries have the same type and capacity and are wired in parallel as a single 12V battery bank.
Q. Is there any risk that the solar kit will over charge my battery?
A. One of the functions of the solar charge controller is to ensure that your battery is not over charged; therefore there is no risk of overcharge.
Q. Can I extend the battery leads?
A. Yes, it’s possible – please choose the same size of cable for extension. However, there longer the extension, the greater the line loss. Bigger gauge will be required for longer runs.
Q. Do I need to clean the solar panels?
A. Yes, it is recommended for better performance. Dust and dirt should first be swept off the panel surface using a soft brush. When the sweeping is complete, use a wet cloth to wipe the panel surface to remove remaining dirt and grime.
Q. Can rain damage the solar kit?
A. Yes, the charge controller is not waterproof.

Technical Specifications

Solar Panel Parameters

Description	100 W Parameters	50W Parameters
Maximum Power	100 W	50 W
Open Circuit Voltage (Voc)	23.1 V	23.6 V
Short Circuit Current (Isc)	6.07 A	3.13 A
Maximum Power Voltage (Vmp)	18.3 V	18.3 V
Maximum Power Current (Imp)	5.35 A	2.85 A
Cell Type	Monocrystalline	Monocrystalline
Operating Temperature	−40°F to +185°F	−40°F to +185°F
Folded Size	21.25×21.5×0.35 inches	21.65×11.4×0.42 inches
Net Weight	7.25 lbs	3.97 lbs

Charge Controller Parameters

Electrical Parameters

Overload and short circuit protection

Reverse current from battery to solar panel protection at night

Charging Parameters Glossary

Equalization Voltage —equalization voltage is a corrective over-charge of the battery. The user should consult their battery manufacturer regarding specific battery equalization capacity. This parameter sets the equalization voltage to set the battery at when it reaches the equalization state.
Boost Voltage —users should check with their battery manufacturer for proper charging parameters. In this stage, users set the boost voltage where the battery will reach a voltage level and remain there until the battery undergoes an absorption stage
Float Voltage— once the charge controller recognizes the set float voltage, it will commence floating. The battery is supposed to be fully charged in his state, and the charge current is reduced to maintain battery stability levels.

RENOGY-2775-E-All-off-Grid-Solar-System-fig-6