1. Introduction
This manual provides essential information for the safe and efficient operation of your MARBERO 88.8Wh Portable Power Station M82 with 21W Solar Panel. Designed for versatility, this power station is ideal for outdoor activities, emergency backup, and off-grid power needs. Please read this manual thoroughly before use and retain it for future reference.
2. Safety Information
Your MARBERO Portable Power Station is equipped with multiple safety protections to ensure safe operation:
- OverCharge Proof: Protects the inner battery of the unit from overcharge.
- OverDischarge Proof: Protects the inner battery of the unit from overdischarge.
- OverCurrent Proof: Protects the unit from overcurrent output.
- OverPower Proof: Protects the unit from over power consumption.
- Short-Circuit Proof: Provides automatic protection in case of short-circuit.
WARNING:
- Do not short-circuit the unit.
- Do not expose the unit to direct sunlight for prolonged periods or extreme temperatures.
- Keep away from high humidity, dust, and liquids.
- Do not disassemble or reassemble the unit.
- Do not use the unit if the input voltage is too high or too low for 12V devices.
3. Package Contents
Verify that all items are included in your package:
- 1 x MARBERO M82 Portable Power Station
- 1 x Foldable Solar Panel 21W
- 1 x Power Adapter
- 1 x Cigarette Lighter Adapter
- 1 x User Manual
4. Product Overview
The MARBERO M82 Portable Power Station is a compact and lightweight device designed for versatile power needs. It features multiple output ports and an integrated LED light panel.

Image: MARBERO M82 Portable Power Station with included 21W Solar Panel, showcasing its compact design and multiple ports.
Key Features:
- High Capacity Lithium Battery: 88.8Wh for extended use.
- Multi-Output Ports: Includes AC, DC, USB-A (2x 5V-2.4A, 2x QC3.0), and USB-C (PD 18W) for various devices.
- Integrated LED Light Panel: Features 3 levels of brightness and an SOS mode for emergency signaling.
- Compact & Lightweight Design: Weighs 2.3 lbs, making it highly portable.
- Multiple Recharging Methods: Can be charged via AC wall adapter, solar panel, or car charger.

Image: Detailed diagram illustrating the various output ports available on the MARBERO M82 Portable Power Station, including AC, DC, USB-A, and USB-C.
Components:
- AC Outlets: 2x 110V/80W (120W Max) Modified SineWave.
- USB Ports: 2x USB 5V-2.4A (Total: 4.8A Max), 2x USB 5-12V/2A (Total: 5V/3.4A 18W Max) QC3.0, 1x USB-C 5V/3A, 9V/2A, 12V/1.5A (PD2.0 18W Max).
- DC Output: 1x DC Output 12-16.8V/10A, 13A Max.
- DC Input: For charging the unit via AC adapter, solar panel, or car charger.
- LED Indicators: For power, AC/DC status, and battery level.
5. Setup
Charging the Power Station:
Before first use, fully charge the power station.

Image: Illustration of the three primary methods to recharge the MARBERO M82 Portable Power Station: via power adapter, solar panel, and car charger.
- Via AC Wall Charger: Connect the provided power adapter to the DC IN port on the unit and plug it into a wall outlet. The blue LED battery indicators will blink during charging and remain solid when fully charged. Full charge takes approximately 5-6 hours.
- Via Solar Panel: Place the 21W solar panel in direct sunlight. Connect the solar panel's output cable to the DC IN port of the power station. The blue LED battery indicators will light up and blink, indicating charging.
- Via Car Charger: Connect the provided cigarette lighter adapter to the DC IN port and plug it into your vehicle's 12V cigarette lighter socket.
6. Operating Instructions
Powering On/Off:
Press the main power button (usually marked with a power symbol) to turn the unit on or off. The battery indicator will illuminate.
Using DC12V Appliances:
Plug your 12V appliance into the DC OUT port. Press the DC button to activate the DC output. Ensure your appliance's current draw does not exceed 10A.
Using AC Appliances:
Connect your AC appliance to one of the AC outlets. Press the AC button to activate the AC output. The unit provides 80W continuous output, with a 120W peak. For appliances with motors (e.g., mini-fridges), ensure their starting wattage is within the unit's peak capacity.
Using USB Digital Devices:
Plug your USB devices into the appropriate USB-A or USB-C ports. The unit supports Quick Charge 3.0 and USB-C PD (Power Delivery) protocols for compatible devices, providing optimal charging speeds.
Using the LED Light Panel:
Press the light button to cycle through 3 levels of brightness (low, medium, high) and an SOS flashing mode. Press again to turn off. Do not point the light directly at human eyes.
7. Maintenance
Proper maintenance ensures the longevity and optimal performance of your power station:
- Store the unit in a cool, dry place away from direct sunlight and extreme temperatures (-10°C to 45°C).
- Charge the unit at least once every 6 months to maintain battery health.
- Keep the unit clean and free from dust and debris.
- Do not use harsh chemicals or abrasive materials for cleaning.
8. Troubleshooting
- Unit shuts down unexpectedly: This may indicate activation of short-circuit or overpower protection. Disconnect all loads, turn the unit off, and then restart. Reduce the load if the issue persists.
- 12V devices not working: Ensure the input voltage is within the 12V-16.8V range. If the battery capacity drops or increases, it may shut down. Consult the device manufacturer for input voltage range.
- Battery indicator blinking, device not charging: This typically indicates a low battery level. Recharge the power station using one of the recommended methods (AC, solar, or car charger).
9. Specifications
| Feature | Specification |
|---|---|
| Brand | MARBERO |
| Model Name | M82SL21 |
| Capacity | 88.8Wh (6Ah/14.8V) |
| Dimensions (LWH) | 6.5"L x 3.2"W x 4.6"H (165x80x117mm) |
| Weight | 2.3 Pounds (about 1.04Kg) |
| Built-in Battery | High Quality Lithium Ion Batteries |
| Input Recharging | DC 15V-24V/1.2A Max |
| Fully Charged Time | Adapter: DC19V/1.5A, about 5-6 hours |
| DC Output | 1 x DC Output 12-16.8V/10A, 13A Max 2 x USB 5V-2.4A Total: 4.8A Max 2 x USB 5-12V/2A (Total: 5V/3.4A 18W Max) QC3.0 1 x USB-C 5V/3A, 9V/2A, 12V/1.5A (PD2.0 18W Max) |
| AC Output | 110V/60Hz |
| AC Continuous Output | 80W/120W Max Modified SineWave |
| Power Indicator | LED Indicators |
| Work Temperature | -10°C - 40°C |
| Storage Temperature | -10°C - 45°C |
| Lifecycle | >500 times |
| Special Feature | AC, DC, USB Ports, Automatic Shut Down, Extra-Long Run Time, Portable, Lightweight, High-capacity, Short Circuit Protection, Over Charge Protection, Over Voltage Protection, Overload Protection |
10. Warranty and Support
For warranty information or technical support, please refer to the documentation included with your product or contact MARBERO customer service directly. Always return your used electronic products, batteries, and packaging materials to dedicated collection points to promote environmental responsibility.



