EcoFlow DELTA 2 Max (1900) Solar Generator (PV400W)
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Need backup power that charges fast and lasts for years? The EcoFlow DELTA 2 Max (1900) Solar Generator (PV400W) is the all-in-one solution you can trust.
The EcoFlow DELTA 2 Max (1900) Solar Generator (PV400W) is made for anyone who wants reliable, portable power without compromise. With a powerful 2400W AC output, it runs almost all your appliances and tools with ease. Thanks to EcoFlow’s X-Boost technology, it can even power devices up to 3100W, giving you flexibility well beyond most portable power stations.
With a base capacity of 2kWh, the DELTA 2 Max keeps your essentials powered for hours. For longer outages or extended trips, connect up to two Smart Extra Batteries to expand your capacity to 6kWh. Its simple plug-and-play design means you can even link it to your home’s transfer switch for partial backup, keeping your fridge, lights and key appliances running smoothly during blackouts.
First of Its Kind Mobile Charging Power Solution
Recharging is lightning fast. Combine up to 1000W of solar with AC power and you’ll reach 80% in just 43 minutes. Stick with AC alone and you’ll still get to 80% in just 53 minutes. With solar only, you can fully recharge in about 2.3 hours by connecting two EcoFlow 400W solar panels or four 220W bifacial panels. The included PV400W panel is a perfect match for dependable charging at home or on the go.
Key Features of the DELTA 2 Max (1900) Solar Generator (PV400W)
- Expandable capacity: 1900Wh capacity (158Ah@12V) to fit your energy storage needs. Ideal for home backup, caravanning, outdoors or even everyday use.
- Built to last 6× longer: Get 10 years of daily use until hitting 80% of its original capacity. That's down to its LFP battery chemistry giving you 3000 cycles.
- Huge AC output: With X-Boost mode, get up to 3100W output power to run 99% of home appliances. Power 13 devices at once, including 4 AC outlets.
- Fastest recharging: World's fastest AC recharging and X-Stream dual AC+Solar charging speeds. Up to 1000W solar input to charge in as fast as 2.3 hours
- Capture more energy: 99% MPPT efficiency maximises solar generation during the daytime.
- Customised in-app energy management: Prioritise solar or AC charging, view input and output power, battery levels and more.
- 5-year warranty：24+36 (Registration for warranty extension)
EcoFlow’s dual solar input design with independent MPPT technology ensures maximum efficiency from every panel. Whether you’re using rooftop systems, portable solar panels or a mix of both, the DELTA 2 Max gets the best possible performance out of your setup. And with the 800W Alternator Charger, you can even recharge directly from your vehicle while driving, turning road trips into a constant power top-up.
Reliable Power for Every Family Need with DELTA 2 Max
RVing & Outdoors
Home Backup
Professional Work
Filmmaking & Photography
DELTA 2 Max (1900) Solar Generator (PV400W) Specifications
| Capacity | 1900Wh (158Ah@12V) |
| Extra Battery | Supports up to two DELTA 2 Max Smart Extra Batteries / DELTA Max Smart Extra Battery |
| AC Output | 4 outlets, 2400W total (Surge 4800W) |
| Max Device(s) Power (with X-Boost) | X-Boost 3100W |
| USB-A Output | 2 ports, 5V, 2.4A, 12W Max per port |
| USB-A Fast Charge | 2 ports, 5V, 2.4A / 9V, 2A / 12V, 1.5A, 18W Max |
| USB-C Output | 2 ports, 5/9/12/15/20V, 5A, 100W Max per port |
| Car Power Output | 1 port, 12.6V, 10A, 126W Max |
| DC5521 Output | 2 ports, 12.6V, 3A, 38W Max per port |
| AC Charging | X-stream Fast Charge 2300W, 10A |
| AC Input Voltage | 220-240V~10A 50Hz/60Hz |
| Solar Charging | 11-60V 15A, single port 500W; dual port 1,000W |
| Car Charging | Support 12V/24V battery, 8A |
| Battery Chemistry | LFP (LiFePO4 battery) |
| Cycle Life | 3000 cycles to 80+% capacity |
| Connectivity | Wi-Fi & Bluetooth |
| Dimensions | 497 × 242 × 305 mm /19.6 × 9.5 × 12 in |
| Net weight (kg) | 23 kg |
Grows to 6kWh Triple Your Energy Storage
10-Year LiFePO4 Battery Life Built for Durability, Safety, and Portability
Built to last, the DELTA 2 Max uses upgraded LFP battery chemistry, giving you 3000 cycles before hitting 80% capacity. That’s around 10 years of everyday use—six times longer than many similar units. Even with all this power, it runs whisper-quiet at just 30 dB, making it one of the quietest 2kWh stations available.
Ultra-Quiet 30dB Performance Undisturbed Charging Experience
The EcoFlow DELTA 2 Max (1900) Solar Generator (PV400W) combines fast charging, expandable capacity and long-term durability in a portable design. It’s a smart way to stay powered no matter where life takes you.
LFP Battery Chemistry
6× longer lifespan than comparable power stations.
Advanced BMS Protection
Advanced battery management monitors voltage, current, and temperature for maximum safety and longevity.
Robust Design
Rugged one-piece construction withstands heavy use. Reinforced ports resist wear and tear from constant travel.
Advanced Tech, Lighter Build
Advanced LFP technology delivers 2kWh capacity at just 23kg - significantly lighter than comparable power stations.
Multi-Layer Protection System
LFP cells ensure safety, durability, and efficient performance in all temperatures.
Anti-slip base and fire-resistant casing provide dual-layer protect
What's in The Box of DELTA 2 Max (1900) Solar Generator (PV400W)?
