EcoFlow Inc. via Amazon has
2048Wh ECOFLOW Delta 3 Max LiFePO4 3400W X-Boost Portable Power Station (EF-DL-H02-3M) on sale for $799 - $39.95 when you apply promo code
CYC4P77D at checkout =
$759.05.
Shipping is free.
Thanks to Community Member
MinhTrinh for sharing this deal.
Note: Promo codes are typically for one-time use and don't always apply seamlessly. If you run into this issue, refresh the page, re-enter the code, or revisit the cart page.
Product Details:
- Ultra-Fast Charging, 0–80% in Just 1.13 Hours – Thanks to EcoFlow's advanced X-Stream technology, DELTA 3 Max can recharge from 0–80% in just over an hour. That means less waiting and more doing, whether you're preparing for a blackout, charging before a road trip, or topping up at the campsite. Reliable power is always ready when you need it most.
- Up to 3400W Continuous X-Boost Mode – Power 99% of Appliances – With an impressive 3400W X-Boost output, this portable power station easily runs high-demand appliances like fridges, microwaves, and even power tools. From emergency backup to RV adventures, enjoy peace of mind knowing your essentials stay powered without overload.
- Ultra-Quiet Performance & Rapid 10ms Transfer Time – Designed for home backup, DELTA 3 Max kicks in with less than 10ms transfer time, keeping sensitive electronics like computers and medical devices safe from outages. Plus, its ultra-quiet operation ensures your nights remain peaceful—no noisy distractions during use.
- Lighter & Durable Design, Built for 10 Years of Daily Use – DELTA 3 Max engineered with a long-lasting LiFePO4 battery. Its lighter, durable build makes it easier to carry from your home to your RV or campsite without sacrificing strength or performance. EcoFlow DELTA2 Max electric generator also comes with an extended 5-year service.
- Smarter App Control – Save on Costs Without Sacrificing Comfort – Connect with the EcoFlow app to monitor energy use in real time, set smart priorities, and cut electricity costs. Easily manage charging and discharging schedules, all while ensuring your comfort and convenience remain top priority.
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Top Comments
D2M: 2x inputs, 60V max, 15A. 60Vx15A = 900W!
D3M: 1x input, 60V Max, "500W" max. So ~8.333A, let's assume 8A. A 44% reduction in solar input capacity.
60V max input is bad enough. I have two Silfab 410W panels. Max power voltage 38V. Open Circuit Voltage 45.92V. So I can't even use these two panels in series.
LivelyTree6515:
Good on you for asking about MPPT. And good on the others for answering nicely!
When you consider panels for an EcoFlow or similar device, you'll want to design by the OPEN CIRCUIT voltage of the panels, not the Max Power voltage.
When putting panels in series, the voltage is the sum of all panel voltages.
When putting panels in parallel, the amperage is the sum of all panel amperages.
For the sake of simplicity, consider that you have 2x panels. Both the same:
Max power voltage 40V
Max open circuit voltage: 46V
Amps: 12A
Put them in series? 80V max power, 92V max open circuit, 12A.
Put them in parallel? 40V max power, 46V max open circuit, 24A!
Multiply Max power by Amps in both cases: you get 960W.
You always want to design based on the Max Open Circuit Voltage. So that in the "worst case", your voltage remains below the MPPT's max (60V in the case of both the Delta 2 and 3 Max devices).
Exceed the MPPT input voltage, and it should shut itself off. But beyond a certain voltage, you're very likely to FRY it. So best to always stay below that threshold.
Don't take my word for any of this, I'm not an expert. It's critical to do your own research. There's a lot of good stuff to learn about all of this. Not very complicated either. If I've said anything incorrect here, hopefully others will correct me.
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13% lighter because it only has 1 mppt. you have to buy the "plus" to have two like the previous model. the plus probably weighs just as much. if you are off geid you will want more mppt
Whats mppt?
https://en.wikipedia.or
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I recently bought the Anker Amazon renewed deal and actually wish I had waited for the ecoflow. I like how my eco flow batteries connect to wifi. Being restricted to Bluetooth like with my Anker solix means you have to be very close to the device to control it.
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I recently bought the Anker Amazon renewed deal and actually wish I had waited for the ecoflow. I like how my eco flow batteries connect to wifi. Being restricted to Bluetooth like with my Anker solix means you have to be very close to the device to control it.
My Anker Solix C1000x does Wi-Fi... Which one did you get?
Anker Powerhouse 767 - which is now known as the Anker Solix F2000. It was only 629 at the time so great price but for Amazon renewed. Some quick searches showed that the Anker Solix devices can connect to WiFi but I did not know the F2000 could not. My mistake but otherwise it's been a great device and I was happy for it for the price.
Hmm, that page claims it has Wi-Fi...
Hmm, that page claims it has Wi-Fi...
You can in theory hook up 12v panels up to 800w and use the battery port and a ecoflow alternator charger + 500 solar each for a total of 1800... I've not seen it done, but might work. Unfortunately car cigarette lighter is only good for about 100-120w max and through the cigarette I think is limited to 8a throughput.
That depends on your setup. This one wins on fan location, though I don't know if it is more efficient.
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