1. Introducció
The Ecosonique P303 Portable Power Station is a versatile and reliable power source designed to provide electricity for various applications, including outdoor activities like camping, travel, and hunting, as well as indoor emergency backup during power outages. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your P303 power station. Please read this manual thoroughly before using the device.

Image: The Ecosonique P303 Portable Power Station, a compact and robust device with multiple output ports and a carrying handle.
2. Producte acabatview
2.1 Components i ports

Image: Diagram illustrating the various components and ports of the Ecosonique P303 Portable Power Station, including output ports, LED display, and cooling fan.
- 100W PD 3.0 Output: USB-C port for fast charging compatible devices.
- 18W QC 3.0 Output: USB-A port for quick charge compatible devices.
- 10W USB-A Output: Standard USB-A ports for charging various devices.
- Pantalla LED: Mostra el nivell de la bateria i l'aigua d'entrada/sortidatage, i indicadors d'estat.
- 12V DC5521 Output: Four DC ports for compatible 12V devices.
- 12V Car Charging Port: Standard car cigarette lighter socket.
- 300W 110V AC Outlet: Four standard AC outlets for household appliances.
- Entrada de corrent continu: Port for charging the power station via AC adapter or car charger.
- Ventilador de refrigeració: Activates automatically to dissipate heat during operation.
- 18W 500lm LED Light: Built-in light with multiple modes for illumination.
2.2 Característiques clau
- Capacitat de càrrega ràpida: Equipped with a 100W PD 3.0 output port, allowing rapid charging of devices like smartphones and laptops.
- CPAP Support: Provides stable power for CPAP machines for extended periods (up to 18 hours with a 15W CPAP and DC-DC converter).
- Sistema avançat de gestió de bateries (BMS): Ensures reliable power safety with built-in overload, over-voltage, overcharge, and short-circuit protection.
- Multiple Recharging Modes: Supports recharging via AC wall outlet, car charger, and solar panel (sold separately) with a built-in MPPT controller for optimal solar charging efficiency.
- Multifunctional Emergency Lights: Features an 18W 500lm LED light with four modes (low, medium, high, SOS) for various lighting needs.
3. Instruccions de seguretat
To ensure safe operation and prolong the lifespan of your Ecosonique P303 Power Station, please adhere to the following safety guidelines:
- Do not disassemble, repair, or modify the unit. Incorrect assembly may cause fire, explosion, or injury.
- Keep the device away from fire, heat sources, and direct sunlight. Store in a cool, dry, and well-ventilated area.
- Avoid exposure to water, rain, or high humidity.
- Do not use the device in environments with strong static electricity or magnetic fields.
- Ensure proper ventilation during use. Do not block the cooling fan vents.
- Feu servir només els cables i adaptadors de càrrega proporcionats o aprovats.
- Mantenir fora de l'abast dels nens i mascotes.
- If the device emits smoke, unusual odors, or makes abnormal noises, immediately stop use and contact customer support.
- Do not drop, puncture, or subject the device to strong impacts.
- Dispose of the product according to local regulations for lithium-ion batteries.
4. Configuració
4.1 Desembalatge i inspecció inicial
Upon receiving your Ecosonique P303 Power Station, carefully unpack all components and inspect for any signs of damage. The package should include:
- 1 × Ecosonique Tech P303 Power Station
- 1 × Adaptador de CA
- 1 × Car Charger Cable
- 1 × DC-DC Converter
- 1 × Manual d'usuari

Image: A visual representation of the Ecosonique P303 Portable Power Station and its included accessories: AC adapter, car charger cable, DC power cord, and user manual.
4.2 Càrrega inicial
It is recommended to fully charge the Ecosonique P303 Power Station before its first use to optimize battery performance and lifespan. Refer to the 'Charging the Power Station' section for detailed instructions.
5. Instruccions de funcionament
5.1 Càrrega de la central elèctrica
The P303 offers three methods for recharging:

Image: Visual guide demonstrating the three methods to recharge the Ecosonique P303 Portable Power Station: via solar panel, car charger, and AC wall adapter.
- Presa de corrent altern (60 W): Connect the provided AC adapter to the DC input port and plug it into a standard wall outlet. Full charge typically takes 7-8 hours.
- Car Charger (30W): Use the provided car charger cable to connect the DC input port to your vehicle's 12V cigarette lighter socket. Full charge typically takes 10-12 hours.
- Solar Panel (100W, sold separately): Connect a compatible solar panel (below 18V/300W) to the DC input port. The built-in MPPT controller optimizes charging efficiency. Full charge typically takes 5-6 hours with a 100W solar panel under optimal sunlight.
5.2 Using the Output Ports
To use any output port, ensure the power station is turned on. Press the respective power button for AC, DC, or USB outputs. The LED display will show the active output and current power consumption.

Image: Infographic detailing the large capacity of the Ecosonique P303 (296Wh/80000mAh) and the estimated number of charges or hours of use for various devices across its 13 output ports.
- Preses de CA: For devices requiring 110V AC power, up to 300W total.
- USB-C PD 100W: For fast charging laptops, tablets, and smartphones.
- USB-A (QC 3.0 & Standard): For charging various USB-powered devices.
- DC5521 & Car Port: For 12V DC devices, such as mini-fridges or CPAP machines (using the included DC-DC converter for CPAP is recommended for efficiency).

Image: An individual using the Ecosonique P303 Portable Power Station to power a CPAP machine, highlighting its suitability as a medical device backup.
5.3 Funcionament de la llum LED
The built-in 18W 500lm LED light can be activated by pressing its dedicated button. Cycle through the modes by pressing the button repeatedly:

Image: Illustration of the four lighting modes (Low, Medium, High, SOS) available on the Ecosonique P303 Portable Power Station's built-in LED light.
- Baixa brillantor
- Lluminositat mitjana
- Alta brillantor
- SOS Signal Light (flashing pattern for emergencies)
6. Manteniment
Proper maintenance ensures the longevity and optimal performance of your power station.
- Emmagatzematge: Store the power station in a cool, dry place away from direct sunlight and extreme temperatures. The ideal storage temperature is between -10°C and 40°C (14°F to 104°F).
- Salut de la bateria: To maintain battery health, fully charge the unit every 3-6 months, even if not in use. Avoid completely depleting the battery for extended periods.
- Neteja: Use a soft, dry cloth to clean the exterior of the power station. Do not use abrasive cleaners or solvents. Ensure vents are free from dust and debris.
- Eviteu la sobrecàrrega: Do not exceed the maximum output wattage (300W AC). Overloading can trigger safety protections and potentially damage the unit.
7. Solució De Problemes
If you encounter issues with your Ecosonique P303, refer to the following common problems and solutions:
| Problema | Causa possible | Solució |
|---|---|---|
| La central elèctrica no s'encén | La bateria està completament esgotada. | Connect to an AC adapter or car charger for a few minutes to initiate charging. |
| No hi ha sortida des dels ports AC/DC/USB | Output port not activated; Device connected exceeds power station's capacity; Power station battery is low. | Ensure the specific output button (AC, DC, USB) is pressed. Check device wattage. Recharge the power station. |
| Charging slowly or not at all | Incorrect charger/cable; Solar panel not in direct sunlight or incompatible; High ambient temperature. | Use original or compatible chargers. Ensure solar panel is optimally positioned. Charge in a cooler environment. |
| Cooling fan is noisy | Normal operation under heavy load; Fan malfunction. | The fan may run louder when dissipating heat from high power output. If noise is excessive or constant at low load, contact support. |
| La pantalla LED no funciona | Unit is off; Display malfunction. | Ensure the unit is powered on. If still unresponsive, contact customer support. |
If the problem persists after attempting these solutions, please contact Ecosonique Technology customer support for further assistance.
8. Especificacions
| Característica | Especificació |
|---|---|
| Nom del model | Ecosonique Tech P303 Portable Power Station |
| Capacitat de la bateria | 296 Wh (80000 mAh) |
| Tipus de bateria | Lithium Ion (32 cells included) |
| Sortida de CA | 4 x 110V, 300W (Pure Sine Wave) |
| Sortida USB-C | 1 x PD 100W |
| Sortida USB-A | 1 x QC 3.0 (18W), 2 x 10W |
| Sortida de corrent continu | 4 x DC5521 (12V/10A), 1 x Car Port (12V/10A) |
| Entrada de càrrega | DC Input (AC Adapter, Car Charger, Solar Panel with MPPT) |
| Dimensions (L x A x A) | 8.82" x 5.94" x 7.28" |
| Pes de l'article | 6.6 lliures (3.1 quilograms) |
| Llum LED | 18W 500lm (Low, Medium, High, SOS modes) |
| Certificacions | FCC, UL |
| Temperatura de funcionament | De 0 °C a 40 °C (32 °F a 104 °F) |
9. Garantia i Suport
9.1 Informació de la garantia
The Ecosonique P303 Portable Power Station comes with an 18 mesos de garantia des de la data de compra. Aquesta garantia cobreix els defectes de fabricació i la mà d'obra en condicions d'ús normal. No cobreix els danys causats per un mal ús, accidents, modificacions no autoritzades o desastres naturals.
9.2 Atenció al client
For any questions, technical assistance, or warranty claims, please contact Ecosonique Technology customer support. Please have your purchase receipt and product model number (P303) ready when contacting support.
You can find contact information on the official Ecosonique Technology weblloc web o a través del vostre distribuïdor.





