Jeri JER-120-SP-AG User Manual

The Jeri JER-120-SP-AG is a 120-watt Solar Power Generator with AGM battery technology, designed for portable off-grid power. It features multiple output ports (AC, DC, USB), a built-in MPPT solar charge controller, LCD display showing battery status and output power, overload protection, silent operation, and compatibility with solar panels up to 200W. 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 Settings 6. Connecting Devices 7. Solar Charging 8. Safety Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: AGM Battery Unit, Solar Charge Controller, LCD Display Panel, AC Output Ports, DC Output Ports, USB Ports, Solar Input Terminals.

Feature	Description
AC Output	120V AC, 60Hz pure sine wave output (max 120W)
DC Output	12V/10A cigarette lighter-style port
USB Ports	Two USB-A (5V/2.4A each) for charging mobile devices
Solar Input	MPPT controller for solar panel connection (max 200W)
LCD Display	Shows battery level, input/output power, charging status
Overload Protection	Automatic shutdown on overload or short circuit
Battery Type	Sealed AGM (Absorbent Glass Mat), maintenance-free
Cooling Fan	Temperature-controlled for silent operation
Carrying Handle	Integrated for portability
DC Input	For charging from wall outlet or car adapter (optional)

Installation

Unpack and inspect contents. Place on stable, dry surface.

Initial Charge: Connect to AC wall charger (included) for 8 hours before first use.
Connect Solar Panel: Use solar cable to connect panel to SOLAR INPUT terminals (red to +, black to -).
Connect Devices: Plug devices into appropriate AC, DC, or USB ports.
Power On: Press and hold POWER button for 3 seconds.

WARNING! Keep away from water and extreme temperatures. Do not disassemble unit.

First-Time Setup

Power on generator; monitor LCD display.

Check Battery Level: Ensure LCD shows at least 50% charge before use.
Configure Output: Press MODE button to select AC or DC priority mode.
Set LCD Brightness: Hold SET button for 5 seconds to adjust display brightness.
Solar Charging: Place solar panel in direct sunlight, ensure proper connection.

CAUTION! Use only compatible solar panels (12-24V). Do not exceed 200W input.

Specifications

Battery Capacity: 100Ah AGM.
AC Output: 120V, 60Hz, 120W continuous (240W surge).
DC Output: 12V, 10A max.
USB Output: 5V, 2.4A per port.
Solar Input: 12-24V, 200W max with MPPT controller.
Charging Time: 6-8 hours via AC; 8-10 hours via solar (full sun).
Display: LCD with battery %, input/output watts, error codes.
Weight: 28 lbs (12.7 kg).
Operating Temp: 32°F to 104°F (0°C to 40°C).
Warranty: 2 years limited.

Controls and Settings

Front Panel: POWER button, MODE button, SET button, LCD display. Port Panel: AC outlets, DC port, USB ports, solar input, DC input.

LCD Icons: Battery bar, AC/DC output indicator, solar input indicator, overload warning.

Settings Menu (accessed via SET button): Battery cutoff voltage (10.5V/11V/11.5V), LCD brightness, output priority (AC first/DC first). Safety: Overload protection, short circuit protection, low voltage disconnect, over-temperature protection.

Connecting Devices

AC Devices: Plug into AC outlets (max 120W total). DC Devices: Use 12V car adapter. USB: Connect phones/tablets.

Check device power requirements (watts/amps).
Ensure total load does not exceed 120W for AC or 10A for DC.
Connect device, then turn on generator.
Monitor LCD for output power and battery level.

Tip: For sensitive electronics, use AC pure sine wave output.

Solar Charging

Supports 12V/24V solar panels up to 200W.

Connect Panel: Use included cables to solar input terminals.
Position Panel: Place in direct sunlight, angle toward sun.
Monitor Charging: LCD shows solar icon and input watts.
Optimal Conditions: Full sun, clear sky, panel clean.
Battery Protection: MPPT controller prevents overcharging.
Charging Time: Varies by panel size and sunlight (approx 8-10 hours for full charge).

WARNING! Do not connect solar panel while generator is powering loads. Disconnect at night or in storms.

Safety Features

Overload Protection: Auto-shutdown if load exceeds 120W. Short Circuit Protection: Cuts output on DC short. Low Voltage Disconnect: Turns off at 10.5V to protect battery. Over-Temperature: Fan cools battery if >104°F. Reverse Polarity Protection: For solar input.

Care & Maintenance

Store in cool, dry place. Keep terminals clean. Recharge every 3 months if not in use.

CAUTION! Do not expose to rain or moisture. Do not use damaged cables.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits. UL Certified: Meets safety standards. Copyright © 2025 Jeri Power Systems; trademarks of Jeri Inc. For support, visit www.jeripower.com or contact 1-800-555-0199.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power output	Battery depleted/overload	Recharge battery; reduce connected load.
LCD not displaying	Battery low/display off	Recharge; press any button to wake display.
Solar not charging	Poor sunlight/connections	Check panel alignment and cable connections.
Overload shutdown	Load >120W	Disconnect devices, restart, connect lower load.
Fan running constantly	High temperature	Move to cooler location; allow to cool.
Low battery warning	Battery below 20%	Recharge immediately to prevent damage.

Reset: Disconnect all devices, turn off, wait 1 minute, restart.

Service: 1-800-555-0199; www.jeripower.com