EcoFlow · Folding fabric
EcoFlow 400W Portable Solar Panel
Solar savings: 2 panels — 10%; 3 panels — 13%; 4 panels — 15%; 5 panels — 18%. Maximum 5 panels per purchase; mix models. Panels inside kits do not count. Offers do not stack.
Based on 1 separately purchased panel after adding this selection. Final total is confirmed in your bag.
Overview & Key Strengths
Why this solar panel
The EcoFlow 400W Portable Solar Panel (Solar400W-BP) is EcoFlow's flagship high-output folding panel built for DELTA 2, DELTA 2 Max, DELTA Pro, and DELTA Pro 3 home backup and RV power systems.
With a 48V Voc / 41V Vmp high-voltage array and 22.6% cell efficiency, a single 400W panel maximizes the MPPT input of a DELTA 2, while chaining three panels in series feeds 1,200W into a DELTA Pro.
- Flagship folding panel.
- 22–23% efficiency.
- IP68.
- Voc ~48V.
- 16kg panel + ~3kg kickstand case.
- Two panels in a row for DELTA Max/Pro.
- Cable included.
- Large format, fast charging.
Spec sheet
Full specs
- Brand
- EcoFlow
- Model / MPN
- SOLAR400W
- UPC / GTIN
- 842783106148
- Type
- Folding fabric
- Rated Power
- 400 W
- Connector
- Universal solar connector / MC4 / XT60
- Weight
- 41.9 lb / 19 kg
- Folded / Panel Size
- 24.8 × 21.6 �� 2.6 in / 63.0 × 54.9 × 6.6 cm (folded)
- Cell Chemistry
- Monocrystalline Silicon (ETFE)
- Cell Efficiency
- 22.6%
- Open Circuit Voltage (Voc)
- 48.0 V
- Max Operating Voltage (Vmp)
- 41.0 V
- Short Circuit Current (Isc)
- 11.0 A
- Max Operating Current (Imp)
- 9.8 A
- Unfolded Dimensions
- 93.1 × 41.7 × 1.0 in (236.5 × 105.8 × 2.5 cm)
- Weather Resistance
- IP68 Waterproof & Dustproof
- Compatible Stations
- EcoFlow DELTA 2, DELTA 3, DELTA 2 Max, DELTA Pro, DELTA Pro 3, DELTA Pro Ultra
Estimated full-sun charge time
- Small station (300 Wh)
- ~1.5 h
- Mid station (1,000 Wh)
- ~4 h
- Large station (2,000 Wh)
- ~8.5 h
0–100% estimate for one panel in strong, direct sun with good angle. Clouds, haze, shade, and the station's own solar-input limit will slow this down in practice.
In action
Reference setups & field deployment
EcoFlow 400W Portable Solar Panel powering DELTA Pro home backup
Unfolded on a sunny patio to deliver up to 400W of high-voltage solar input per panel.
4-section 400W monocrystalline array with kickstand case
Up to 22.4% conversion efficiency across four large monocrystalline sections.
400W unfolded studio view and protective case
Pairs directly with EcoFlow DELTA 2 Max, DELTA Pro, and DELTA Pro 3 via MC4-to-XT60i.
Highlights
Why it's worth it
- 400W high-voltage output (48V Voc / 41V Vmp) ideal for DELTA 2 Max, DELTA Pro, and DELTA Pro 3
- 22.6% conversion efficiency monocrystalline cells laminated in tough ETFE film
- IP68 water and dust resistance built to withstand outdoor exposure
- Carry case doubles as an adjustable 40–80° kickstand for all-day sun tracking
In the box
What's included
- EcoFlow 400W Portable Solar Panel
- Kickstand Carry Case
- Solar to XT60i Charging Cable
- 4 × Snap Hooks & User Manual
