1. Introduzione
The EF ECOFLOW DELTA 3 Classic is a portable power station designed to provide reliable power for various applications, including home backup, outdoor activities, and emergency situations. It features a 1024Wh LiFePO4 battery, 1800W AC output (expandable to 2600W with X-Boost), and multiple charging options. This manual provides essential information for the safe and efficient operation of your device.
2. Istruzioni di sicurezza
Please read and understand all safety instructions before using the DELTA 3 Classic. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Non smontare, riparare o modificare l'unità.
- Tenere l'unità lontana da fonti di calore, dalla luce solare diretta e da materiali infiammabili.
- Evitare l'esposizione all'acqua o ad altri liquidi.
- Assicurare una ventilazione adeguata durante l'uso e la ricarica.
- Non utilizzare l'unità se è danneggiata o sembra non funzionare correttamente.
- Tenere fuori dalla portata dei bambini e degli animali domestici.
3. Prodotto finitoview
Familiarize yourself with the components of your DELTA 3 Classic portable power station.

Figura 3.1: Fronte view of the DELTA 3 Classic Portable Power Station.
Porte e controlli
The DELTA 3 Classic features multiple input and output ports for versatile connectivity.

Figura 3.2: Oltreview of the 6 versatile output ports, including USB-C, USB-A, and AC outlets.
- Porte di uscita CA: 3 x AC outlets, providing up to 1800W total.
- Porte USB-C: 1 x 100W Max USB-C, 1 x 30W Max USB-C.
- Porta USB-A: 1 x 18W Max USB-A.
- Schermo di visualizzazione: Shows battery level, input/output power, and other status indicators.
- Pulsante di accensione: Per accendere e spegnere l'unità.
4. Impostazione
Carica iniziale
Before first use, fully charge the DELTA 3 Classic. The X-Stream AC charging technology allows for rapid charging.
- Collegare il cavo di ricarica CA alla porta di ingresso CA dell'unità e quindi a una presa a muro.
- The display will indicate charging status. The unit can charge from 0% to 80% in approximately 45 minutes.
Collegamento dei dispositivi
Once charged, you can connect your devices to the appropriate output ports.
- For AC appliances, plug them into the AC output ports.
- For USB devices, use the USB-A or USB-C ports.
5. Istruzioni per l'uso
Accensione/spegnimento
Press and hold the main power button to turn the unit on or off. The display screen will illuminate upon activation.
Utilizzo dell'uscita CA
The DELTA 3 Classic provides 1800W AC output, with an X-Boost feature that can support devices up to 2600W. This allows it to power a wide range of appliances, including refrigerators, microwaves, and laptops.

Figure 5.1: The DELTA 3 Classic providing power for various scenarios, highlighting its 1800W AC output and X-Boost capability up to 2600W.
Opzioni di ricarica
The DELTA 3 Classic offers multiple ways to recharge its battery.

Figure 5.2: The four versatile charging options for the DELTA 3 Classic: AC recharging (45 min to 80%), Solar Charging (1.8 hr to 80% with 500W solar input), Generator Charging (45 min to 80%), and Alternator Charger (1.8 hr to 80% with EcoFlow 500W Alternator Charger).
- Ricarica CA: Connect to a standard wall outlet for fast charging.
- Ricarica solare: Connect compatible solar panels (optional) for renewable energy charging. With 500W solar input, it can charge in approximately 2.5 hours.
- Ricarica auto: Use the car charger cable to charge from your vehicle's 12V outlet.
- Ricarica del generatore: Can be recharged using a generator.
Funzione di alimentazione ininterrotta (UPS)
The DELTA 3 Classic features an Uninterruptible Power Supply (UPS) function to protect sensitive electronics. In the event of a power outage, it automatically switches to battery power in less than 10 milliseconds, preventing data loss and interruptions for devices like PCs, servers, and medical equipment.

Figure 5.3: The DELTA 3 Classic providing seamless power with its 10ms auto-switch UPS function, ensuring zero interruptions for critical devices.
EcoFlow App Control
Manage and monitor your DELTA 3 Classic remotely using the EcoFlow app. The app allows you to monitor energy usage, set charging schedules, and activate backup modes like storm alerts or self-power mode.

Figure 5.4: The EcoFlow app providing deeper insights and easier control, allowing users to monitor energy usage, set scheduled tasks, and manage backup modes.
6. Manutenzione
Cura della batteria
The DELTA 3 Classic uses LiFePO4 battery cells, designed for over 10 years of daily use. To maximize battery lifespan:
- Evitare di scaricare completamente la batteria frequentemente.
- Conservare l'unità in un luogo fresco e asciutto quando non viene utilizzata.
- Recharge the unit to 80% every 3-6 months if stored for extended periods.
Pulizia
Utilizzare un panno asciutto e morbido per pulire l'esterno dell'unità. Non utilizzare prodotti chimici aggressivi o materiali abrasivi.
7. Risoluzione Dei Problemi
If you encounter issues with your DELTA 3 Classic, refer to the following common problems and solutions.
- L'unità non si accende: Assicurati che la batteria sia carica. Tieni premuto il pulsante di accensione per alcuni secondi.
- Nessun output dalle porte: Check if the specific output (AC/DC/USB) is enabled. Verify the device connected is within the power station's output limits.
- Ricarica lenta: Ensure the charging cable is securely connected. Check the power source for adequate output. For solar charging, ensure panels are in direct sunlight and clean.
- Avviso di sovraccarico: Disconnect some devices to reduce the load. The unit will automatically recover once the overload is removed.
For further assistance, contact EF ECOFLOW customer support.
8. Specifiche
| Caratteristica | Specificazione |
|---|---|
| Marca | Flusso ecologico EF |
| Nome del modello | DELTA 3 Classic |
| Numero di modello del prodotto | EF-DL3-C |
| Tipo di batteria | LiFePO4 |
| Capacità | 1024 Wh |
| Uscita CA | 1800W (3600W Surge), X-Boost up to 2600W |
| Uscita USB-C | 1 x 100 W massimo, 1 x 30 W massimo |
| Uscita USB-A | 1 x 18 W massimo |
| Tempo di ricarica (CA) | 0-80% in 45 minuti |
| Ingresso di ricarica solare | Up to 500W (charges in approx. 2.5 hours) |
| Funzione UPS | <10ms Auto-Switch |
| Dimensioni | Dimensioni: 20.07 x 28.19 x 39.88 cm |
| Peso | 15 kg (33 libbre) |
| Materiale | Metal (frame/housing), Plastic/Rubber (insulation), LiFePO4 (battery) |
| Usi consigliati | Camping, Home, Commercial |
9. Garanzia e supporto
The EF ECOFLOW DELTA 3 Classic comes with a manufacturer's warranty. For detailed warranty information, please refer to the warranty card included with your product or visit the official EF ECOFLOW websito.
For technical support, troubleshooting assistance, or spare parts, please contact EF ECOFLOW customer service through their official channels. Ensure you have your product model number (EF-DL3-C) and purchase details ready when contacting support.