Manufacturer research Specifications checked 2026-10-25 US model
EcoFlow 220W Bifacial Solar Panel
The exact EcoFlow EF-Fold-G220-04 manual rates the front at 220 W and the rear at 175 W under stated standard test conditions. Rear capture depends on reflected light, so the two figures are not a guaranteed combined output. Compare the complete panel/array limits with the receiving device's manual.
- Rated panel power
- 220 W Manufacturer source for Rated panel power (checked 2026-10-25; opens in a new tab)
- Open-circuit voltage (Voc)
- 21.5 V Manufacturer source for Open-circuit voltage (Voc) (checked 2026-10-25; opens in a new tab)
Is it right for your household?
A reader who can check front/rear ratings, array limits and the receiving station's exact solar input before choosing a bifacial panel.
A plan requiring a guaranteed 395 W combined output or a daily-energy promise.
More fit considerations
Other reasons to choose a different setup
- A reader who cannot confirm the receiving device's voltage/current and array limits.
Manufacturer specification record · No hands-on testing · Source records checked on 2026-10-25
Match the complete model code
The reviewed manual is V1.0 for EcoFlow model EF-Fold-G220-04. Check that code on the product and use the matching manual; don't transfer its bifacial ratings to another EcoFlow 220W model. The box list includes a 2.5 m solar-to-XT60i cable, but that connector does not establish compatibility with every station.
Do not add the rear-side rating to the front nameplate
Under the manual's stated STC of 1,000 W/m², AM1.5, and 25°C, front rated power is 220±5 W and rear rated power is 175±5 W. EcoFlow describes the rear side as capturing reflected light. It does not make 395 W a guaranteed operating output; surrounding surfaces and conditions affect rear-side contribution.
Use the electrical parameters in the input check
The manual lists Voc 21.5 V, Vmp 18.4 V, front Isc 12.4 A and front Imp 11.9 A; rear Isc and Imp are separately 9.9 A and 9.5 A. EcoFlow instructs readers to check that panel output parameters fall within the connected device's input range. Use that exact device manual to evaluate limits; this guide does not prescribe array wiring or a compatible panel count.
Plan space and protect the connected equipment
The manual lists an approximate 7 kg panel with a 615×2155×25 mm unfolded footprint and 615×590×32 mm folded footprint. It gives the panel an IP68 rating but says not to soak it and warns against liquid contacting the junction box or connectors. A connected station and its cables have their own environmental limits; keep those instructions separate.
Specifications & sources
These are manufacturer specifications, not independent performance measurements. Source records checked on 2026-10-25. We have not tested this model hands-on.
- Rated panel power
-
220 W
Front side 220±5 W; rear side is separately rated 175±5 W and is not an additive guaranteed output.
Checked 2026-10-25. Source for Rated panel power (opens in a new tab)
- Open-circuit voltage (Voc)
-
21.5 V
Checked 2026-10-25. Source for Open-circuit voltage (Voc) (opens in a new tab)
- Listed panel weight
-
15.4 lb
Approx. 7 kg / 15.4 lb per manual.
Checked 2026-10-25. Source for Listed panel weight (opens in a new tab)
- Optimum operating voltage (Vmp)
-
18.4 V
Checked 2026-10-25. Source for Optimum operating voltage (Vmp) (opens in a new tab)
- Optimum operating current (Imp)
-
11.9 A
Front side; rear-side Imp is separately listed as 9.5 A.
Checked 2026-10-25. Source for Optimum operating current (Imp) (opens in a new tab)
- Short-circuit current (Isc)
-
12.4 A
Front side; rear-side Isc is separately listed as 9.9 A.
Checked 2026-10-25. Source for Short-circuit current (Isc) (opens in a new tab)
- Connector and included lead
-
Photovoltaic connectors adapted to MC4; 2.5 m solar-to-XT60i cable listed in box
Checked 2026-10-25. Source for Connector and included lead (opens in a new tab)
- Folded and unfolded dimensions
-
Unfolded 615×2155×25 mm; folded 615×590×32 mm
Checked 2026-10-25. Source for Folded and unfolded dimensions (opens in a new tab)
- Manufacturer-stated panel protection
-
IP68 (manual rating for panel; manual says do not soak)
Checked 2026-10-25. Source for Manufacturer-stated panel protection (opens in a new tab)
- Rear-side rated power (separate rating)
-
175 W
Rear side 175±5 W under the manual's stated STC. This is a separate side rating and is not added to front-side rated power as a guaranteed output.
Checked 2026-10-25. Source for Rear-side rated power (separate rating) (opens in a new tab)
- Rear-side short-circuit current
-
9.9 A
Rear-side short-circuit current, separately listed in the exact-model manual.
Checked 2026-10-25. Source for Rear-side short-circuit current (opens in a new tab)
- Rear-side optimum operating current
-
9.5 A
Rear-side optimum operating current, separately listed in the exact-model manual.
Checked 2026-10-25. Source for Rear-side optimum operating current (opens in a new tab)
- Output lead polarity marking
-
The 1.5 m panel output cable is marked positive (+) and negative (−); a 2.5 m solar-to-XT60i cable is listed in the box.
Lead labeling and included cable only; no connection sequence or station compatibility is inferred.
Checked 2026-10-25. Source for Output lead polarity marking (opens in a new tab)
Research notes & original documents
What remains unknown
- No specific station model or permitted panel count is evaluated in this record.
- No site-specific bifacial gain, real-world output, or charge-time result is asserted.