EcoFlow DELTA 2 Max: what it runs and for how long

On a full charge it runs a refrigerator for about 26 h and a chest freezer for about 2.2 days.

Who is the EcoFlow DELTA 2 Max a good fit for?

The EcoFlow DELTA 2 Max meets every requirement for 6 of the 12 uses we filter for.

• ✓Keeping a fridge running in an outage
• ✓Home backup
• ✓RVs
• ✓Fast solar charging
• ✓Running a window AC for several hours
• ✓Starting a 120 V well or sump pump
• ✕Van life · needs weight ≤ 45 lb; the EcoFlow DELTA 2 Max has 50 lb
• ✕Carrying a CPAP on trips (light enough to pack) · needs weight ≤ 20 lb; the EcoFlow DELTA 2 Max has 50 lb
• ?UPS use with computers and routers · can’t be checked: EcoFlow doesn’t publish the UPS switchover figure
• ✕Balcony solar and apartments · needs weight ≤ 40 lb; the EcoFlow DELTA 2 Max has 50 lb
• ✕A LiFePO4 station under $500 · needs list price ≤ $500; the EcoFlow DELTA 2 Max has $1,299

Can you add batteries to the EcoFlow DELTA 2 Max?

Yes. EcoFlow lists the EcoFlow DELTA 2 Max as expandable with extra batteries, up to 6,144 Wh in total, so you can grow it for longer outages instead of replacing it.

How fast does the EcoFlow DELTA 2 Max recharge?

From a wall outlet it charges at up to 1,800 W; EcoFlow doesn't publish a full-charge time. From solar it needs about 2.7 hours of strong sun at its 1,000 W solar limit, with panels delivering 75% of their rating.

What are the EcoFlow DELTA 2 Max's full specifications?

These figures come from EcoFlow's official US page, checked 2026-10-12. "Not published" marks specs EcoFlow doesn't publish.

How does the EcoFlow DELTA 2 Max rank against other 2,000–2,999 Wh power stations?

Among the 10 current 2,000–2,999 Wh models, the EcoFlow DELTA 2 Max is in the top third for capacity, surge, solar input and AC charging speed and in the bottom third for rated cycles and weight.

Who should not buy the EcoFlow DELTA 2 Max?

Skip the EcoFlow DELTA 2 Max if any of these describe you; each comes from its published specs.

• You carry it often. At 50 lb, it is heavier than 7 of the 10 2,000–2,999 Wh models that publish a weight. The Jackery Explorer 1500 v2 holds 1,536 Wh at 32 lb.
• You need a UPS. No switchover time is published for the EcoFlow DELTA 2 Max, so treat it as battery backup that may let a desktop restart.

How long does the EcoFlow DELTA 2 Max last at different loads?

About 1,741 Wh reaches the AC outlets, so a steady 100 W load runs for about 17 h and a load at its full 2,400 W rating for about 44 minutes.

What does the EcoFlow DELTA 2 Max cost per kWh over its rated life?

About $0.21 per kWh of storage at list price, if you use all 3,000 rated cycles. The median for 2,000–2,999 Wh models is $0.15 per kWh, so the EcoFlow DELTA 2 Max is more expensive over its rated life.

Rated life energy = 2,048 Wh × 3,000 cycles ≈ 6,144 kWh. List price $1,299 ÷ 6,144 kWh ≈ $0.21.

How many hours of sun does the EcoFlow DELTA 2 Max need to refill?

With panels delivering 75% of their rating (our calculator's default), the EcoFlow DELTA 2 Max needs the hours of strong sun below. Its 1,000 W solar limit caps the charge rate, so panels beyond about 1,333 W add nothing in strong sun.

What can the EcoFlow DELTA 2 Max run at the same time?

The EcoFlow DELTA 2 Max can carry 9 of the 10 common pairs we check at once, with the runtimes below. It can't carry microwave oven + electric kettle: together they pass its running or start-up limit.

Which EcoFlow DELTA 2 Max specs are unpublished or conditional?

EcoFlow doesn't publish these specs for the EcoFlow DELTA 2 Max: UPS switchover.

5 published figures come with conditions, shown under the spec table: AC charge time, UPS switchover, expanded capacity, rated cycles and solar input.

How does the EcoFlow DELTA 2 Max compare with similar power stations?

By capacity, the nearest models from other brands are Anker SOLIX C2000 Gen 2, DJI Power 2000 and Jackery HomePower 2000 Plus v2.

How is the EcoFlow DELTA 2 Max different from the EcoFlow DELTA 3 Max Plus?

The EcoFlow DELTA 3 Max Plus is the closest EcoFlow model. Pick the EcoFlow DELTA 2 Max if you want a lower list price; otherwise the EcoFlow DELTA 3 Max Plus gives you the opposite trade-off.

Which models from other brands are closest in size?

Anker SOLIX C2000 Gen 2

2,048 Wh

2,400 W AC · 41.7 lb · $1,499.99DJI Power 2000

2,048 Wh

3,000 W AC · 48.5 lb · $1,899Jackery HomePower 2000 Plus v2

2,048 Wh

2,400 W AC · 41.4 lb · $1,199

Which other EcoFlow models are similar?