Configurator›EcoFlow system builder/configure/ecoflow-delta-pro

Build your full EcoFlow system

Vendor-locked configuration — only components EcoFlow themselves sells as compatible. We don't suggest cross-brand mixes that the manufacturer doesn't bless.

Running total

$3,696

Saves $1,800 vs MSRP

Why we don't suggest cross-brand mixing: connecting an EcoFlow battery to a different-brand unit isn't supported by either manufacturer's warranty, and the BMS protocols don't speak to each other. We only configure within a single brand's blessed ecosystem. If you want to mix brands, that's an intentional DIY choice — and you'll want a different tool than this one.

Base unit · selected from fit-test

EcoFlow DELTA Pro · 3,600Wh · 3,600W AC · 7,200W surge

Default. View SKU details

$2,549

Costco

Solar input · 2× Anker SOLIX PS200 (parallel on Solar Input)

2× Anker SOLIX PS200

200W · Voc 57.6V · Vmp 47.6V · Imp 4.21A · MC4 · rigid

$798

2× @ $399

Panel

Quantity

Wiring

Target input

Design min temp (°C)

For cold-Voc derate. -3.9°C ≈ 25°F.

⚠ PV wiring valid with warnings

Topology	2 panels in parallel
Combined Voc (STC)	57.6V
Cold-derated Voc @ 15°C	59.33V
Combined current (Imp)	8.42A
Combined wattage	400W

· Panel uses MC4 connector but the Solar Input input is XT60. Add an adapter cable to the shopping list.

How the validator decides — wiring math reference

Voltage in series: Voc adds across panels. 3× 57.6V = 172.8V — exceeds 165V High PV ceiling. INVALID.

Voltage in parallel: Voc stays at single-panel level. 2× 57.6V parallel = 57.6V — under 60V Low PV ceiling. VALID at warm temps; cold-Voc may push over.

Cold-Voc derate: we apply panel cold-Voc temperature coefficient × ΔT below STC (25°C). Below freezing, Voc rises by ~10% — this is what trips the WARNING / INVALID line for tight-margin configs.

Current in parallel: Imp adds. 4× 4.21A parallel = 16.84A, exceeds the 12.5A Low PV input cap. INVALID.

Wattage cap: total panel wattage shouldn't exceed the input's max-watt rating. Excess gets clipped by the MPPT — operation is safe but you lose peak yield.

Cables & adapters · auto-suggested

In-box for this configuration

all included

Item	Why needed	Status
XT60 Y-branch (2-way)	Combine 2× 200W panels into single Solar Input input	In box
EcoFlow DELTA Pro ↔ DELTA 2 Smart Extra Battery cable	Proprietary; ships with DELTA 2 Smart Extra Battery	In box

RV note: The EcoFlow DELTA Pro has a native TT-30R outlet — a standard 30A RV plugs in directly, no L14-30 adapter needed. For 50A RVs you'd add a TT-30 → 14-50 adapter (~$35) but you'll only get 120V on each leg, not split 240V.

Hardwired home backup · optional · 120V loads only

EcoFlow Power Saver Kit / Inlet Box

EcoFlow-blessed path for hardwired home backup. Powers selected 120V circuits during outage · electrician install required

Coming soon

Skip if: you'll use the EcoFlow DELTA Pro with extension cords or unplug-and-plug into appliances directly. Add if: you want a hardwired path to a transfer-switched 120V subpanel covering specific circuits (furnace, lights, refrigerator).

Your shopping list

3 items · EcoFlow system

EcoFlow DELTA Pro

via Costco

$2,549

1× DELTA 2 Smart Extra Battery

via EcoFlow Direct

$349

2× Anker SOLIX PS200

via Anker Direct

$798

Hardwired home backup

Not added · optional

—

Subtotal (MSRP)$5,496

Bundle / flash savings−$1,800

System total$3,696

Saves $1,800 vs MSRP today

7,200 Wh total energy capacity

Buy components →

Future upgrade path

Plan ahead. Your config can grow up to 10,800 Wh on this same EcoFlow DELTA Pro base.

+1yrAdd another DELTA 2 Smart Extra Battery → 10,800 Wh total · ~$349 · longer autonomy
+3yrAdd more PV — High PV input still has headroom for additional series array