EcoFlow DELTA Pro 3 with the EcoFlow 45W Portable
Unverified
This page is excluded from search: No verified way to connect this panel to this station.
The EcoFlow 45W Portable has a DC5521 output, so it can’t be wired in series or parallel from its own leads. We evaluate one panel per port.
21.9 V is below the 30 V minimum of High-PV Input, so it won’t start charging. Wire more panels in series.
Thick mark: cold Voc · Thin mark: operating Vmp, 21.9 V
Parts for this layout
Don’t buy this combination. Change the layout until the check above passes.
- EcoFlow DELTA Pro 3$2,799 View on Amazon
- EcoFlow 45W Portable$99 View on Amazon
Estimated total $2,898
Prices can change. The price on Amazon at purchase is what applies.
Can I connect the EcoFlow 45W Portable to the EcoFlow DELTA Pro 3?
No. No layout of up to four EcoFlow 45W Portable panels works on the EcoFlow DELTA Pro 3 at −10 °C. 21.9 V is below the 30 V minimum of High-PV Input, so it won’t start charging. Wire more panels in series. These port limits come from EcoFlow’s published specifications.
What is the best way to wire EcoFlow 45W Portable panels to the EcoFlow DELTA Pro 3?
We can’t recommend a wiring layout for this pair. We tested every series and parallel combination the panel’s leads allow, across 2 ports and four temperature bands, and none passed every check. The table below shows the exact limit each layout hits, so you can compare another panel.
| Port | Layout | Voc 25 °C | Voc 0 °C | Voc −10 °C | Voc −20 °C | Vmp | Isc | Watts | Verdict at −10 °C |
|---|---|---|---|---|---|---|---|---|---|
| High-PV Input | 1S1P | 25.6 | 28.2 | 29.2 | 30.2 | 21.9 | 2.1 | 0 | Won’t charge: below MPPT floor |
| Low-PV Input | 1S1P | 25.6 | 28.2 | 29.2 | 30.2 | 21.9 | 2.1 | 44 | Unverified |
How cold can it get before this string overvolts the EcoFlow DELTA Pro 3?
Cold doesn’t change the answer for this pair within our −25 °C test range. Using our assumed −0.40 %/°C (no figure is published), each EcoFlow 45W Portable panel rises from 25.6 V at 25 °C to 30.7 V at −25 °C, and that stays inside the 60 V limit of Low-PV Input.
The cold-weather correction is the same one NEC Article 690.7 requires for PV system voltage.
Which cable connects the EcoFlow 45W Portable to the EcoFlow DELTA Pro 3?
No cable makes this pair worth buying yet. We have no verified adapter or no working layout for the EcoFlow 45W Portable on the EcoFlow DELTA Pro 3, so we aren’t recommending parts. Check the port labels on your own unit, and compare the 30 to 150 V input window against your panel’s label.
How long does the EcoFlow 45W Portable take to recharge the EcoFlow DELTA Pro 3?
We can’t give a recharge time for this pair because no verified layout works. For comparison, the EcoFlow DELTA Pro 3 stores 4,096 Wh, so any panel needs to deliver real power to its 30 to 150 V input before the sun-hour maths means anything at all.
Where do these EcoFlow DELTA Pro 3 and EcoFlow 45W Portable numbers come from?
Station limits come from us.ecoflow.com and panel ratings from us.ecoflow.com, each checked against a verbatim quote on that page. Panels must also pass a physics test: Vmp times Imp must land within 15% of rated watts. Anything failing goes to quarantine and gets no page.
| Rated power | 45 W | us.ecoflow.com“45W (±3W)” |
|---|---|---|
| Open-circuit voltage (Voc) | 25.6 V | us.ecoflow.com“25.6V” |
| Operating voltage (Vmp) | 21.9 V | us.ecoflow.com“21.9V” |
| Short-circuit current (Isc) | 2.06 A | us.ecoflow.com“2.06A” |
| Operating current (Imp) | 2 A | us.ecoflow.com“2.0A” |
| Voc temperature coefficient | −0.40 %/°C | Assumed: not published by the maker |
| Output connector | DC5521 | us.ecoflow.com“Type-C” |
| High-PV Input | 30 to 150 V, 15 A, 1600 W | us.ecoflow.com“High-PV Input: 30V-150V⎓, 15A, 1600W Max” |
|---|---|---|
| Low-PV Input | 11 to 60 V, 20 A, 1000 W | us.ecoflow.com“Low-PV Input: 11V-60V⎓, 20A, 1000W Max” |
| High-PV Input connector | XT60 | offgridstores.comsecondary“EcoFlow Solar to XT60i Charging Cable” |
| Low-PV Input connector | XT60i | offgridstores.comsecondary“EcoFlow Solar to XT60i Charging Cable” |
Prices last checked and spec data verified on .