EcoFlow DELTA ladder honesty · Week 2

EcoFlow DELTA 3 vs DELTA Pro 3 — carry-able mid vs wheeled home backup

Two very different jobs in one family: DELTA 3 (1,024 Wh · 1,800 W · 12.5 kg) versus DELTA Pro 3 (4,096 Wh · 4,000 W 120/240 V · 51.5 kg). Four times the Wh for about four times the weight — plus 240 V. Feature-class honesty, not a winner crown. Prices: check listing.

Honesty first (read this)

  • No invented Wh, watts, or street prices. DELTA 3 figures: EcoFlow US DELTA 3 product page (1,024 Wh · 1,800 W AC, 3,600 W surge, 2,200 W X-Boost · 500 W solar · approx. 12.5 kg). DELTA Pro 3 figures: EcoFlow US DELTA Pro 3 product page (4,096 Wh · 4,000 W 120/240 V, 6,000 W X-Boost, 8,000 W surge · 2,600 W solar · 51.5 kg). Regional (230 V) SKUs differ — check listing / label.
  • DELTA 3 vs DELTA 3 Plus. Both list 1,024 Wh; this page uses the plain DELTA 3 card. Plus-specific inputs: DELTA 3 vs DELTA 2.
  • Neighbouring compares. DELTA 3 vs DELTA 2 · Pro 3 vs DELTA 2 Max · DELTA 2 vs 2 Max.
  • Feature-class, not scoreboard. DELTA 3 wins carry, camping and apartment overnight; Pro 3 wins Wh, 240 V and circuit-level backup. Panel / inlet-box wiring is an electrician job — not a QuietWatt recommendation.

Nameplate figures below are copied from manufacturer product pages / spec sheets (checked Oct 2026) — not QuietWatt lab tests or electrical / emergency-planning advice. Regional SKUs differ; confirm the listing in your market. Estimates labelled.

Axes that actually differ

  • Wh. 1,024 vs 4,096 Wh. Size math: what size · fridge runtime.
  • Continuous AC. 1,800 W 120 V (3,600 W surge) vs 4,000 W 120/240 V (8,000 W surge). X-Boost figures are resistive-load claims, not continuous rating: peak vs continuous.
  • Weight. 12.5 kg vs 51.5 kg — one person carry vs wheels and a fixed spot: carry / Wh·kg · stairs / lightest.
  • Solar input. 500 W (11–60 V) vs 2,600 W across two ports (1,600 W high-PV + 1,000 W low-PV). Confirm Voc: how many solar panels.
  • Expand. DELTA 3 up to 5 kWh with compatible extra batteries; Pro 3 up to 12 kWh single unit (larger system figures need extra units / panels sold separately).
  • Chemistry / warranty. Both LFP, 4,000 cycles to 80%, 5-year warranty per EcoFlow listings — confirm on card.

Side-by-side (manufacturer nameplate)

Not a sponsored ranking. Figures from manufacturer listings — check listing / label before buying.

Axis DELTA 3 DELTA Pro 3
Capacity 1,024 Wh 4,096 Wh
AC continuous 1,800 W 120 V (3,600 W surge) 4,000 W 120/240 V (8,000 W surge)
Solar max 500 W 2,600 W (2 ports)
Weight approx. 12.5 kg / 27.6 lb 51.5 kg / 113.5 lb (wheeled)
Expand (single unit) up to 5 kWh up to 12 kWh
Chemistry / cycles LFP · 4,000 to 80% LFP · 4,000 to 80%
Price Check current listing Check current listing

QuietWatt is independent. Verify the exact model page. Heat / resistive loads and transfer-switch jobs need electrician / generator honesty — see peak vs continuous · space heater · transfer switch · quiet gen vs station (surge / LRA / start / continuous / whole-home rarely on a portable alone). Not medical advice for CPAP — see CPAP overnight.

Models in this ladder (confirm listing)

Filter by job. Prices move weekly — check current listing; QuietWatt does not quote a street price.

Model Wh · notes Why it lands here Approx. USD
EcoFlow DELTA 3 portable mid 1,024 Wh · 1,800 W · 12.5 kg Apartment overnight / camping. DELTA 3 vs DELTA 2. Check current listing
EcoFlow DELTA Pro 3 home backup 4,096 Wh · 4,000 W 120/240 V · 51.5 kg Multi-day outage / 240 V loads. home vs portable. Check current listing
EcoFlow DELTA 2 Max ~2 kWh middle Middle rung — see Pro 3 vs DELTA 2 Max When 1 kWh is thin but 51 kg is too much. Check current listing

When the smaller box is enough · when the bigger one is worth it

DELTA 3 is enough

Apartment / camping

Fridge + router overnight, laptops, CPAP (not medical advice), car-trunk carry. fridge runtime.

DELTA Pro 3 is worth it

Multi-day / 240 V

Well pump, 240 V loads, circuits via panel (electrician). transfer switch.

Middle ground

~2 kWh

DELTA 2 Max class: Pro 3 vs DELTA 2 Max · EcoFlow vs Anker.

Buy (affiliate placeholders)

Affiliate disclosure (FTC): QuietWatt may earn a commission if you buy through links on this page once enrolled. Links below are #aff-* placeholders, host-owned / TBD — no program is live yet. Until then, use the official product URLs above. Prices: check current listing.

Buy via EcoFlow Buy via Amazon

Placeholder anchors: #aff-ecoflow, #aff-amazon — host-owned / TBD.

Sources