EcoFlow DELTA 3 Max Ultra Plus Portable Power Station
EcoFlow DELTA 3 Max Ultra Plus Portable Power Station
Buy now, Pay later! Just select
or
at checkout!
Learn more
Couldn't load pickup availability
EcoFlow DELTA 3 Ultra Plus Portable Power Station
Overview: Long-Lasting Home Backup
The EcoFlow DELTA 3 Ultra Plus delivers a staggering 3600W rated AC output (7200W surge). With X-Boost™ 3.0 technology, it supports heavy-duty appliances up to 4600W—effortlessly handling electric dryers, clothing steamers, and electric frying pans. Using an advanced DSP chip, it ensures pure sine wave output with beyond grid-level stability for your most sensitive electronics.
Extreme Durability & Advanced BMS
Equipped with automotive-grade full-tab LFP cells, the DELTA 3 Ultra Plus offers 10 years of reliable power. The EV-grade CTC structure protects against overnight condensation and off-road bumps, while the ARM Cortex-powered BMS monitors your battery 24/7 for peak performance and safety.
Intelligent Control via OASIS 3.0
Take full command of your energy with OASIS 3.0. The EcoFlow App dashboard allows you to monitor solar generation, track electricity savings, and enable Storm Guard Mode to automatically lock in backup power before severe weather hits.
Scalable Runtime: The DELTA 3 Ultra Plus features an expandable capacity from 3kWh to 11kWh. It is compatible with the following Extra Batteries via the EcoFlow Smart Extra Battery Expansion Adapter (Coming early 2026):
- DELTA 3 Max Plus Smart Extra Battery
- DELTA Pro 3 Smart Extra Battery
Technical Specifications
| Dimensions | 24.1 x 12.9 x 15.6 in (613.1 x 327.7 x 395.0 mm) |
|---|---|
| Net Weight | Approx. 74.3 lbs (33.7 kg) |
| Rated Capacity | 3072 Wh (51.2V, 60Ah) |
| Battery Chemistry | LiFePO₄ (LFP) |
| Cycle Life | 80%+ capacity after 4000 cycles |
| AC Output | 120V, 3600W total (Surge 7200W) |
| X-Boost™ Output | Up to 4600W |
| USB-C Output (x1) | 140W Max |
| USB-C Output (x2) | 45W Max per port (45W total) |
| Solar Input | 11-60V, 18A, 800W per port (1600W total) |
| AC Charging Input | 1800W Max (0-80% in 89 mins AC only) |
| 12V DC Output | Anderson: 12.6V-30A (378W Total) |
| UPS Transfer Time | < 10ms |
| Warranty | 5 Years |
Note for Owners: To ensure you receive your full 5-year coverage (3 years standard + 2 years extension), please register your warranty through the EcoFlow App after receiving your unit.
Compatibility & Expansion
What's In The Box
- EcoFlow DELTA 3 Ultra Plus (3072Wh)
- AC Charging Cable
- User Manual & Warranty Card
[1] Dual-charging speed (48 mins) requires solar + generator input totaling 3960W.
[2] 10-year lifespan based on cycle life simulation to 80% original capacity.
* Class B EMC certification ensures no interference with TVs, Wi-Fi, or home electronics.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Your History
Did you mean to add this to your cart?
More Than A Store
No sales pressure, just honest advice. Not sure what you need? We've been helping Canadians go off-grid for over a decade. Trust the team with a proven track record.
Canadian Owned
Serving you from the true north
Building Dreams
Helping you build a legacy for your family
Kyle Benger
I almost NEVER leave a 5 star review. They are reserved in my world for places that do something EXCEPTIONAL. Kyle A. And the crew at Cabin Depot are a group of those exceptional people. They patiently worked with us as we developed our off grid setup and provided not only fair prices, but wonderful follow-up with my installation and operational questions as our system came together. Thank you and we look forward to a continued relationship.
Sebastien Harvey
I purchased a drolet myriad III wood stove from cabin depot. Customer service was great, delivery was fast and they replied to all of my questions very quickly. When I received the wood stove I unboxed it while the driver was here (as suggested by the company). Everything was perfect and the driver from midland transportation was very accommodating.
A+ thank you very much!
Tom Wiseman
I’ve taught customer service to many organizations in my professional career. I’m now long retired and still find excellent customer service difficult to come by!
The Cabin Depot, and especially Kyle Aubin, are exceptional examples of customer support and service!! My only regret was not reaching out sooner!
I would have saved myself significant time, lessened aggravation, and a happier installation of my EG46000XP and generator backup.
Lyle’s patience and response time, his pleasantness and professionalism, will contribute significantly to me looking first to them for future sales and service!
Angelique Wood
We ordered our PV panel, battery bank and inverter set up in September 2024. There were a number of hurdles to get over and many times we worried we were not going to accomplish our dream of greater self sufficiency.
With the owner of Cabin Depot involved, we have received strong support in resolving our issues and have now got an inverter, lithium battery and PV set up which has taken us from using a generator and having periodic power, to uninterrupted power supply allowing us to run a number of electrical devices continuously, including our well pump and a modem.
We look forward to a continued relationship with Cabin Depot and thank them for helping us to get over the finish line with what has been a daunting project.
Shayne Kovich
Recently added a EG4 LL battery to my existing system.
Cabin Depot was great to deal with, shipping was around a week., which is pretty good considering it was shipped across Canada.
Only delayed by 1 day but that was a UPS thing.
This battery was added to 3 existing EG4 Lifepower batteries.
Everything worked no issues at all., only thing was the communication ports are in different locations and the supplied cables are too short to reach,
No big deal.
All in all very happy and would order again
Larry Scarr
Propane stove came on time in perfect condition, super easy install, helpful customer service, very competitive price!! Just a good company. We will be buying more off grid supplies from this fantastic group of professionals!!
Alberta Wild
I was so impressed last year when I called from Alberta - searching for the right equipment (hot water on demand and propane heater… and I have to say I am impressed again - today was just a special order thermocouple to have as a spare - the service you provided for a 35 dollar part was above and beyond.