Description
Features
- Expandable capacity – 2-6kWh expandable capacity to fit your energy storage needs. Add up to two DELTA 2 Max Smart Extra Batteries to hit a capacity of 6144Wh. Ideal for home backup, RVing, outdoors or even everyday use.
- Built to last 6× longer – Get 10 years of daily use until hitting 80% of its original capacity. That’s down to its LFP battery chemistry giving you 3000+ cycles.
- Huge AC output – With X-Boost mode get up to 3400W output power to run 99% of home appliances. Power 15 devices at once including 6 AC outlets.
- Fastest recharging – World’s fastest AC recharging and X-Stream dual AC+Solar charging speeds. Up to 1000W solar input to charge in as fast as 2.3 hours.
- Capture more energy – 99% MPPT efficiency maximizes solar generation anytime.
- Customized in-app energy management – Prioritize solar or AC charging, view input and output power, battery levels and more.
- 5-Year warranty
SMART HOME ECOSYSTEM
MAXIMUM POWER, MINIMUM FUSS
Specifications
| SKU | EFDELTA2Max-US |
| Brand | EcoFlow |
| Capacity | 2048Wh |
| Extra Battery | Supports up to two DELTA 2 Max Smart Extra Batteries / DELTA Max Smart Extra Battery |
| AC Output | 6 outlets, 2400W total (Surge 4800W) |
| Max Device(s) Power (with X-Boost) | X-Boost 3400W |
| USB-A Output | 2 ports, 5V, 2.4A, 12W Max per port |
| USB-A Fast Charge | 2 ports, 5V, 2.4A / 9V, 2A / 12V, 1.5A, 18W Max |
| USB-C Output | 2 ports, 5/9/12/15/20V, 5A, 100W Max per port |
| Car Power Output | 1 port, 12.6V, 10A, 126W Max |
| DC5521 Output | 2 ports, 12.6V, 3A, 38W Max per port |
| AC Charging | X-stream Fast Charge 1800W, 15A |
| AC Input Voltage | 100-120V~ max. 15A 50Hz/60Hz |
| Solar Charging | 11-60V 15A, single port 500W; dual port 1,000W |
| Car Charging | Supports 12V/24V battery, 8A |
| EcoFlow WAVE & WAVE 2 & GLACIER & Smart Generator | Supported |
| Battery Chemistry | LFP (LiFePO4 battery) |
| Cycle Life | 3000 cycles to 80+% capacity |
| Connectivity | Wi-Fi & Bluetooth |
| Dimensions | 497 × 242 × 305 mm / 19.6 × 9.5 × 12 in |
| Net Weight | 50 lbs (23 kg) |
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What’s in The Box
- DELTA 2 Max
- AC Charging Cable
- Car charging cable
- DC5521 to DC5525 cable
- Warranty card*
- Owner’s Manual
Warranty
- 5 Years Limited Factory Warranty
- 30 Day Satisfaction Guaranteed















Doug2 –
Excessive standby power consumption
The standby power consumption is very disappointing. Just having the DC on with no load apparently takes 10w! Otherwise I like the product.
Tssr –
Love the product for camping or emergencies Great
Phenomenal product love that it’s quiet verse gas.
Professor –
So far the quality and features are amazing, very
I just got the combo 2 mx + 800 watts charger and 400 solar panel and I full charge most of the time , I whish I could upgrade to a delta pro 3 that should be mind blowing for my ambulance project.
midnight_tundra_a10 –
Delta 2 + 800w Alternator Charger
I purchased this combination about a year ago and feel like I need to write a review after using these products. Prior to upgrading to this setup; I ran two Jackery (250w and 1000w) units for my power needs while camping. Switching to the Delta 2 setup minimized the amount of equipment I needed. It also provided plenty of power to run my fridge and charge any other electronics I needed charging. However, this is not the reason that prompted a review. The Delta 2 with the 800w Alternator Charger earned its worth when it got me out of an otherwise expensive situation. I was about an hour away from home running trails when I happen to damage my alternator. Because of this; I was slowly draining my battery and feared I’d have to pay for a costly tow. I had happened to leave my Delta 2 in the truck that weekend and it came in clutch. It was fully charged due to it being hooked up to the Alternator Charger. I was able to reverse the charge and run the truck off the Delta 2 for an hour until I made it home. I charged the Delta 2 every night to be able to drive to work and back until I was able to get the alternator replaced. Needless to say, the Delta + 800w Alternator Charger earned its worth. I highly recommend this setup to the point that I don’t need to run a dual battery setup since I have this to rely on. If you ask me, this combination is worth the money if you spend any time off grid or off the beaten path.
Jack1wilson55 –
Wave 3 and Delta Max 2 purchase
Bought the Wave 3 and Delta Max 2 very impressed with the quality of the product. We had a bit of a snag with logistics. So I reached out to EcoFlow and within a couple of hours the issue was resolved. The product was delivered the next morning. Should make for a great addition to the family camping trip this weekend!!!! 5 Stars!!!!!!!
Randal –
Definitely as advertised. Would recommend.
Received a split order on Thursday and Friday. Started testing today (Saturday). Insanely easy set-up. App works well. App includes a very detailed user manual that offers great hints for optimizing the system. Solar panels work well, even producing credible energy output under non-ideal conditions. Does everything I want it to so far, although I’d love some more length to the cables connecting the panels to the battery.
campingKev –
Extreme power with every possibility
This is my second unit, the first one I gave to my son in need. I have been using to power our 35′ while charging through EcoFlow 90 alternator generator connected to 2 Battleborn LIFe4 batteries charging with 800 watt solar panels in pass through mode. Loving the freedom to travel on our own power.
Range –
More ports for options to charge and to enjoy more
What are you waiting for, buy this now, double tx60 ports, meaning 1000 solar panels rating, car alternator charger up to 800 watts, stack additional batteries.