The EcoFlow DELTA 3 Ultra Plus takes up to 1,600 W of solar through two solar inputs (each 11–60 V, 18 A, 800 W). The quickest refill from a maker panel on sale today: 2 × Jackery SolarSaga 500 X, 1 panel on each of its 2 solar inputs, which brings it to 1,000 W and refills its 3,072 Wh in about 3.1 h of full sun.
Solar limit
1,600W
Fastest refill
3.1h of sun
Panels
2× 500 W
The panels cost $1,598 at Jackery, checked Oct 11, 2026. At a more typical 70% panel yield the refill takes about 4.4 h. Every arrangement here keeps the panels' open-circuit voltage under the limit on a -10 °C (14 °F) morning. Every panel we track.
2 × Jackery SolarSaga 500 X on the EcoFlow DELTA 3 Ultra Plus: 1 panel on each of its 2 solar inputs; 1,000 W in.
EcoFlow DELTA 3 Ultra Plus: solar input limits from EcoFlow
solar input (×2)
11 to 60 V, 18 A max, 800 W
All inputs together
1,600 W (EcoFlow: "Solar input: 11-60V⎓18A MAX, 800W per port, total 1600W")
Two panels in series add their voltages; strings in parallel add their currents. A panel's open-circuit voltage (Voc) rises on cold, bright mornings, so each arrangement below is checked with the panel's own temperature coefficient, or -0.35% per °C where the maker publishes none, at -10 °C (14 °F). Strings in parallel are kept within the input's current figure; a single string that could give more is held back by the input itself.
Every maker panel we track, on the DELTA 3 Ultra Plus
11 of the 18 panels fit, fastest refill first. Each uses every input that can take it; the hours are full sun, from empty.
Maker panels on the EcoFlow DELTA 3 Ultra Plus; prices Oct 11, 2026
"Full sun to refill" is the ideal floor: the station taking its input limit every hour. Panels rarely deliver their rating, so the 70% column is closer to a good day, and a usable day holds four to six hours of full sun in most of the US. Panels whose maker does not name an MC4 plug are counted one to an input, since they link to others only through the maker's own adapters.
Cables between panel and station
EcoFlow does not list a solar cable in the station's own box, so check the panel's box or buy the cable for its plug.
What a day of sun puts back
Watt-hours back in a day, at a 70% panel yield and the station's input limit. Winter in the northern US gives about 3 hours of full sun, a clear summer day in the Southwest 6 or more.
Watt-hours back per day; the DELTA 3 Ultra Plus holds 3,072 Wh
Setup
3 h of sun
4 h of sun
5 h of sun
6 h of sun
2 × Jackery SolarSaga 500 X
2,100 Wh68% of the battery
2,800 Wh91% of the battery
3,072 Wha full refill
3,072 Wha full refill
2 × EcoFlow 400W
1,680 Wh55% of the battery
2,240 Wh73% of the battery
2,800 Wh91% of the battery
3,072 Wha full refill
1 × Jackery SolarSaga 500 X
1,050 Wh34% of the battery
1,400 Wh46% of the battery
1,750 Wh57% of the battery
2,100 Wh68% of the battery
Check another panel on the DELTA 3 Ultra Plus
Type the figures from the panel's label or spec sheet (they are given at 25 °C). The check assumes MC4 plugs, so panels can go in series or parallel.
Enter the four figures to see how many of these panels the DELTA 3 Ultra Plus takes, and how to wire them.
EcoFlow product page: "Solar input: 11-60V⎓18A MAX, 800W per port, total 1600W" · "Ensure that the total voltage does not exceed the power station's maximum input limit." · "Ensure that the total current does not exceed the power station's maximum input rating."
