No rule fires for this kit in Minneapolis in December. The result is waiting for manual review before we call it a pass.
The kit contains 1 × EcoFlow DELTA 3 Plus and 1 × EcoFlow 220W Bifacial Portable Solar Panel (EF-Fold-G220-04). The maker does not publish how the panels are wired, so we check the layout a 12 V controller can start on with the fewest panels in series: 1 in series × 1 strings.
What fails, and where
In all three: Phoenix (warm, December), Denver (moderate, December) and Minneapolis (cold, December): 33 of 34 pass
- Worth knowing
The panel and station connectors differ, so you need an adapter.
Show the numbers
You need an adapter from MC4 to XT60; it's added to the parts list.
A year with this kit in three climates
Across the nine runs the same kit goes from no blackouts (van in Phoenix) to 365 days without power (cabin in Phoenix). The hardware is identical in every run. Only the weather and the load change, so a review from one location says little about yours.
| Use | Phoenix, AZ (warm) | Denver, CO (moderate) | Minneapolis, MN (cold) |
|---|---|---|---|
| VanWeekend van, 400 Wh a day | no blackouts | 21 days without powerfirst 5 Jan, longest 4 days | 116 days without powerfirst 3 Jan, longest 44 days |
| CabinYear-round cabin, 1,697 Wh a day | 365 days without powerfirst 1 Jan, longest 365 days | 365 days without powerfirst 1 Jan, longest 365 days | 365 days without powerfirst 1 Jan, longest 365 days |
| GarageGarage backup, 453 Wh a day | no blackouts | 8 days without powerfirst 5 Jan, longest 3 days | 95 days without powerfirst 3 Jan, longest 25 days |
What to add so it passes in the cold
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| Part | Why | Qty | Buy |
|---|---|---|---|
| Cable 10 , 8.8 mpanels to controller, red + black, 4 m run | 12.4 A × 1.56 = 19.3 A; 1.7 % drop at 18.4 V string voltage. | 8.8 m | Search |
| Adapter MC4 to XT60 | The panel and station connectors differ. | 1 | Search |
How this page was computed
Every compatibility rule the checker has runs against the kit in the worst solar month of each city. The year is simulated hour by hour with the listed loads; parts to add come from the auto-fix and the computed parts list.
- Kit contents from the manufacturer verified 2026-09-16
- NREL PVWatts v8 typical weather years Phoenix, Denver, Minneapolis; fetched 15 September 2026
The formulas are the same open engine the checker runs; the methodology page lists every constant.
These results are for reference. Wiring must be installed by a qualified electrician. Mobile installations follow ABYC E-11; stationary ones NEC 690/706.