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EcoFlow Delta 2 Max

At a glance

Full specs โ†“
Capacity
2048 Wh
Usable energy
1843 Wh
AC output
2400 W
Surge
3400 W
Chemistry
LiFePO4
Cycle life
3000 cycles
Max solar
1000 W
Weight
50 lb
Best for
Home backup (essentials) RV & off-grid Full-size fridge Expandable
Estimated usable capacity Estimate
1,567 Wh at the outlet ยท ~77% of the 2,048 Wh rating

An estimate, not a measurement: we derate the 2,048 Wh rating for a safe depth-of-discharge and ~15% inverter loss (DCโ†’AC). We haven't bench-tested this unit yet, so treat it as a solid approximation.

EcoFlow

EcoFlow Delta 2 Max

โ˜… 4.7 / 5

The EcoFlow Delta 2 Max is a 2048Wh LiFePO4 portable power station delivering 2400W continuous (3400W surge). Rated for ~3000 cycles and up to 1000W of solar input, with expandable capacity.

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Full specifications

Battery capacity2048 Wh
Usable capacity1843 Wh
AC output2400 W
Surge output3400 W
ChemistryLiFePO4
Cycle life3000 cycles
Max solar input1000 W
ExpandableYes
Weight50 lb
Warranty5 yrs
Ports6x AC | 2x USB-C | 4x USB-A | 1x car

Video review

We recommend watching a real-world test before buying. Here's a hands-on review of the Delta 2 Max:

โ–ถWatch EcoFlow Delta 2 Max on YouTubeHobotech / DIY Solar Power

Channels we trust for hands-on testing

Independent reviewers who bench-test capacity, inverters and real-world runtime.

Hobotech
Rigorous real-world capacity & inverter testing.
DIY Solar Power with Will Prowse
The go-to for DIY off-grid and teardown reviews.
The Solar Lab
Real world testing of solar panels and power stations.

How long will the Delta 2 Max runโ€ฆ

Estimated runtime per full charge for common loads.

Phone charge (about 6.5 days (~157 hours)) Laptop (about 1.1 days (~26 hours)) Wi-Fi router / modem (about 4.4 days (~105 hours)) LED lights (per bulb) (about 6.5 days (~157 hours)) CPAP machine (about 1.6 days (~39 hours)) Mini fridge (about 1.1 days (~26 hours)) Full-size fridge (about 10 hours) 12V cooler / fridge (about 1.5 days (~35 hours)) Microwave (1000W) (about 1.3 hours) Coffee maker (about 1.7 hours)

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