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Will the EcoFlow 100W Flexible Solar Panel work with the Goal Zero Yeti 200X?

Yes, with a catch. Fine in mild weather (20.3V), but on a 20°F (-7°C) morning the open-circuit voltage rises to about 22.4V, above the 22V limit. Cold makes panels push more voltage. Two panels: works, with a catch (2 panels in parallel on 8mm), about 100 W.

Verdict

Works, with a catch

It charges, but read the note. Best option: 1 panel on 8mm.

1 x 100W Flexible Solar Panel1 panel on 8mm
Yeti 200X8mm
Expected
100W
Voltage at 20F
22.4V
limit 22 V
Current
5.9A
cap 7 A
  • Fine in mild weather (20.3V), but on a 20°F (-7°C) morning the open-circuit voltage rises to about 22.4V, above the 22V limit. Cold makes panels push more voltage.
  • The brand does not say whether its voltage limit is open-circuit or working voltage, so we check against the stricter open-circuit number.
  • Its AC outlet is modified sine wave, which some devices (and most CPAPs with humidifiers) do not like.
Cables to buy
  • Needs an MC4 to 8mm adapter cable.
EcoFlow 100W Flexible Solar Panel

100 W, open-circuit 20.3 V, short-circuit 6.3 A, working 17.1 V / 5.9 A. Brand page Panel details

Goal Zero Yeti 200X

Solar input 8mm: 13 to 22 V, 100 W max. Brand page Station details

Change the count or temperature

Two panels: every way to wire them

WiringInputVolts at 20FAmpsWattsVerdict
2 panels in parallel on 8mm
Fine in mild weather (20.3V), but on a 20°F (-7°C) morning the open-circuit voltage rises to about 22.4V, above the 22V limit. Cold makes panels push more voltage.
8mm22.411.8100Works, with a catch
2 panels in series on 8mm
Open-circuit voltage 40.6V is above the station's 22V limit. Going over a station's input voltage limit can damage it.
8mm44.85.90Don't connect

Quick answers

Will the EcoFlow 100W Flexible Solar Panel work with the Goal Zero Yeti 200X?

Yes, with a catch. Fine in mild weather (20.3V), but on a 20°F (-7°C) morning the open-circuit voltage rises to about 22.4V, above the 22V limit. Cold makes panels push more voltage. Two panels: works, with a catch (2 panels in parallel on 8mm), about 100 W.

Can I connect two 100W Flexible Solar Panel panels to the Yeti 200X?

Yes, 2 panels in parallel on 8mm. That gives about 100 W, with one catch: Fine in mild weather (20.3V), but on a 20°F (-7°C) morning the open-circuit voltage rises to about 22.4V, above the 22V limit. Cold makes panels push more voltage..

What cable do I need to connect the 100W Flexible Solar Panel to the Yeti 200X?

Needs an MC4 to 8mm adapter cable.

Is it safe on a cold morning?

Panel voltage rises in the cold. One 100W Flexible Solar Panel goes from 20.3 V on its label to about 22.4 V at 20°F and 23.2 V at 0°F. The Yeti 200X accepts up to 22 V on the 8mm.

Where to buy

$199 at the EcoFlow store, Oct 28, 2026
BuyAmazon
Out of stock at the Goal Zero store
View at store

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Rules we applied
  • Goal Zero Yeti 200X: solar input 13 to 22 V on the Solar in (8mm). Goal Zero does not say whether this limit is open-circuit or working voltage, so we use the stricter reading: open-circuit voltage on your coldest morning.
  • Cold raises panel voltage: we add 0.33% per °C below 77F (25°C), this panel's own figure. At 20F one panel's 20.3 V becomes 22.4 V.
  • Current over the 7 A cap is safe: the station takes 7 A and you get fewer watts. We count only the capped watts.
  • Max 100 W on this input.
Assumptions
  • Cold-morning voltage uses this panel's own coefficient from its manual, 0.33% per °C.
  • Expected watts are the best case in full sun. Real-world midday output is usually 60 to 80% of that.
Sources
Checked Oct 28, 2026