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EcoFlow DELTA Pro Ultra X
Whole-Home Power. Unbound.
High Power. High IQ.
DELTA Pro Ultra X scales from 12 to 36kW. With a new Adaptive Start algorithm, it intelligently identifies connected appliances and tailors startup for each, seamlessly handling surges up to 45kW and high-demand appliances like a 5-ton AC.
Get Through Any Outage
Always Reliable When It Matters Most
Your 24/7 Money Saver
Here's a Typical Day of Savings
Day and night, power shifts between solar, storage, and off-peak rates—maximizing every watt to get you the best deal. Here's what that might look like on a typical day of use.
No Wasted Watts
Compatible with Existing Rooftop Solar²
With the EcoFlow Current Sense Transformer, every extra watt is redirected to your DPUX battery—never wasted or sold back to the grid for pennies.
The Highest Safety Standards
What's in the box?
Specs
Standard Capacity
12.288kWh, 6144Wh x 2
Maximum Capacity with 1 inverter
61.440kWh, 6144Wh x 10
AC Output
12kW, 120/240V, 60Hz
Up to 36kW in 3 parallel units
Maximum Capacity with 3 inverters
184.32kWh, 6144Wh x 30
Net Weight (lb)
Inverter: 34.5±0.2kg（70.06±0.44 lb）
Battery: 50.5±0.2kg（111.3±0.44 lb）
Dimension (mm)
Inverter: 675 × 475 × 230 mm (26.6 × 18.7 × 9.06 in.)
Battery：660 × 455 × 204 mm (26 × 18 × 8 in.)
Battery Chemistry
LFP
Warranty
5 years
Screen
✓
Extra Battery
✓
AC Outlets
NEMA 5-20 (x2) 120V 20A
NEMA L14-30 (x1) 120/240V 30A
NEMA 14-50 (x1) 120/240V 50A
UPS
<10ms standalone, <20ms with Smart Home Panel 3
Rated AC Input Power
12kW,100/200-120/240V, 50A
DC Input
Total 10kW, 2 ports
80-500V/15A, 5000W Max Each
Noise Level
Noise level <30 dB at 0.5 m (ambient temperature 25 °C, 4 kW output)
IP Rating
IP54
Battery Temperature
Operating&Storage temp: −4°F to 113°F (−20°C to 45°C)
Inverter Temperature
Operating&Storage temp: −4°F to 122°F (−20°C to 50°C)
FAQs
What are the specifications of the AC output ports of the DELTA Pro Ultra X?
The AC output ports and specifications of the DELTA Pro Ultra X are as follows:Front: NEMA 5 - 20 interface (120V 20A), L14 - 30 interface (120V/240V 30A), 14 - 50 interface (120V/240V 50A).Right side: 5 + 8 input/output interface (120V/240V 50A)
What are the specifications of the DC input ports of the DELTA Pro Ultra X? Are there any DC output ports?
The DC input ports and specifications of DELTA Pro Ultra X are as follows:High-PV input port: 80-500V//15A per interface, with a total maximum input of 10000W.There is no DC output port.
How many battery packs can the DELTA Pro Ultra X connect to at most?
The DELTA Pro Ultra X supports the parallel connection of up to 10 battery packs (with a single battery pack capacity of 6144kWh), which can significantly increase the backup power capacity.
What is the UPS switching time of the DELTA Pro Ultra X?
The UPS switching time of the DELTA Pro Ultra X is divided into two scenarios:When the DELTA Pro Ultra X operates independently: Power outage time < 10ms;When the DELTA Pro Ultra X operates in combination with the EcoFlow Smart Home Panel 3 (32 Circuits) or the Smart Gateway, the power outage switching time < 20ms.
What should be noted when connecting old batteries (DELTA Pro Ultra series) to the DELTA Pro Ultra X?
When connecting old batteries (with SN starting with Y712) to the DELTA Pro Ultra X, the following points must be followed:Only connect the old batteries to the rightmost Battery Port (the one farthest from the Power In/Out Port) for upgrading. Do not connect any batteries to the middle Battery Port to avoid abnormalities.Do not unplug the parallel connection cable during the upgrade process until the upgrade indicator on the screen disappears and the device restarts.
Which ecological products is the DELTA Pro Ultra X compatible with?
DELTA Pro Ultra X is compatible with the following products (some require additional accessories):Third-party devices: 3 - 7.2kW/12kW generators, charging piles, EV charging guns;EcoFlow products: EcoFlow Smart Home Panel 3 (32 Circuits) or Smart Gateway intelligent distribution box.
What are the core upgrades of the DELTA Pro Ultra X compared to the previous generation of DELTA Pro Ultra?
The total output power is increased from 7200W to 12000W;The maximum number of connectable battery packs is increased from 5 to 10;The maximum total PV input power is increased from 5600W to 10000W.
How about the solar charging capacity of the DELTA Pro Ultra X?
Supports two-way high-voltage PV inputs, with a voltage range of 80 - 500V for each way, a maximum working current of 15A per way, and a total power of up to 10,000W;The photovoltaic interface needs to be connected to the EcoFlow PV Switch Box (standard configuration).
Does the DELTA Pro Ultra X require a specific way to connect the battery packs to achieve an output power of 12KW?
Batteries need to be connected to both power-on pack ports on the Inverter. Additionally, it is recommended that the number of battery packs connected to the two ports be the same; if the number of battery packs connected to the two ports is inconsistent, the output power may not reach 12KW.
Can the DELTA Pro Ultra X output power in bypass mode when powered through the standard AC charging cable?
Yes, it's possible. The specification of the standard charging cable (EcoFlow AC Charging Cable (NEMA 5 - 15P to 5P8 Port)) is 15A, 120V. When charging with this cable, you can simultaneously output and carry a load from the front panel.
Can the DELTA Pro Ultra X change the power frequency to switch between 50Hz and 60Hz?
The frequency cannot be adjusted, and the default frequency is 60HZ. In bypass mode, the output frequency of the device is determined by the frequency of the input mains power (for example, if the mains power input is 60Hz, the output will be 60Hz; if the input is 50Hz, the output will be 50Hz).
Does the DELTA Pro Ultra X support charging by third-party generators?
Supported. There are two connection methods. You can directly connect to the Power in/out port via the accessory EcoFlow Generator Charging Adapter, or connect to the PV port through the EcoFlow FlowMaster Generator Rectifier [optional].
How to reset the Bluetooth connection of the DELTA Pro Ultra X?
When the device is turned off, press and hold the power button until the screen lights up, and then continue to hold it for about 5 seconds. When you hear the device beep twice in succession or see the device screen go off and then light up again, it indicates that the reset is successful.
Does the DELTA Pro Ultra X support grid connection?
It is not supported. The DELTA Pro Ultra X only draws power from the grid and will not actively transmit power back to the grid.
Terms & Conditions
Promotion Period
The EcoFlow DELTA Pro Ultra X Super Early Bird Campaign runs from Oct 13 to Nov 2, 2025 PST. EcoFlow DELTA Pro Ultra X will officially launch on Nov 3, 2025 PST.
Early Bird Sign-Up
From Oct 13, 2025 to Nov 2, 2025, you can subscribe via the product page by entering your email to receive the latest updates on the DELTA Pro Ultra X Series. By signing up, you agree to receive marketing emails from EcoFlow and accept the privacy policy and terms of use.
The Smart Home Panel 3 and Smart Gateway is currently not available in Canada. Please refer to the product page for the latest availability information.
To enable whole-home backup power, the DELTA Pro Ultra X Series must be used with the Smart Home Panel 3 and Smart Gateway to integrate with the home’s electrical system. The Smart Home Panel 3 and Smart Gateway are sold separately and are not currently available in Canada.
Early Bird Benefits
From Oct 13 to Nov 2, 2025 PST, you will get the following benefits:
a. Benefit 1: From Oct 13 to Nov 2, 2025 PST, customers who purchased $500 deposit will get $1000 off when completing the balance payment from Nov 3, 2025 PST - Nov 30, 2025 PST.
* Each customer is limited to one deposit purchase, each deposit entitles the customer to a one-time $1,000 discount, which is valid only when completing the balance payment between Nov 3, 2025 PST - Nov 30, 2025 PST, claim the discount by signing up with same account you use to pay the deposit.
* The $1,000 discount will be automatically applied at checkout when customers who paid the deposit place an order for the DELTA Pro Ultra X Series from Nov 3, 2025 PST - Nov 30, 2025 PST.
* If a customer does not complete the balance payment by Nov 30, 2025 (PST), the $500 deposit will be automatically refunded to the original payment account after this date.
b. Benefit 2: Exclusive Perk
1) During Oct 13 to Nov 2, 2025 PST, when you purchase $500 deposit and successfully pay for the balance of DELTA Pro Ultra X Series from Nov 3, 2025 PST - Nov 30, 2025 PST, you will get a free APP Service_Energy Master (1-year free trial). A gift code will be sent via email once you have successfully completed the balance payment. Once you register the device in the EcoFlow app, you may enter the gift code to add one additional year to the service validity period.
* The gift code will be sent via email. Each app user is limited to one gift code. The gift code is for one-time use only and is valid for 1 year starting from the day you activate it in the EcoFlow App. Unauthorized sharing of gift codes is strictly prohibited. EcoFlow reserves the right to invalidate codes and cancel orders suspected of fraud, abuse, or violations of these terms.
*Limited perk is exclusively available to customers who lock in the offer with the deposit.
c. Benefit 3: Upgraded Financing Option From Nov 3, 2025 PST - Nov 30, 2025 PST, orders with Delta Pro Ultra X Series will get a 12-month interest-free financing at 0% APR when you pay with Affirm. Eligibility for this service is subject to Affirm's credit evaluation.
General Terms
a. The campaign is open to all users on ca.ecoflow.com who are Canadian citizens or residents and (i) at least 18 years of age or (ii) legal age before Oct 13, 2025 PDT to form a binding contract with EcoFlow.
b. If you encounter any issues during the Promotion period, please contact us at support@ecoflow.com for assistance.
c. For information about delivery service, please refer to our shipping policy for more details.
d. EcoFlow reserves the right to modify or cancel the promotion at any time, as permitted by applicable law. We also reserve the right to exclude any customer from the promotion in cases of fraud or abuse.
e. Participants agree to be bound by these terms and understand that EcoFlow’s decisions are final and binding. No correspondence or appeals regarding the promotion will be entertained. EcoFlow reserves the right to make final interpretations regarding this promotion.
f. During the promotion, all orders must comply with EcoFlow's purchase agreement and return policy. This promotion is not available for wholesale or distributor orders.
g. Unauthorized or fraudulent activities will result in disqualification from the promotion.
h. Participants must comply with all applicable laws and regulations.
i. All gifts in this promotion are limited in quantity and will be allocated on a first-come, first-served basis. Any issues not covered in these terms will be subject to EcoFlow's final interpretation.
j. EcoFlow is not responsible for delays caused by reasons beyond its control, including, but not limited to, network transmission failures.
k. EcoFlow is not liable for any direct or indirect losses or damages incurred by either party (including participants) due to actions or negligence related to the promotion.
l. Participants agree to release EcoFlow from any claims, including those arising from breach of contract, tort, negligence, or other legal or equitable causes related to participation in the promotion.
m. There may be certain orders that we are either unable to accept or must cancel. We reserve the right, at our sole discretion, to refuse or cancel any order for any reason. We are not responsible for inaccuracies or errors.
n. EcoFlow reserves the right to decide on any dispute arising from or in connection with the promotion.
o. We reserve the right to cancel or limit any purchase or offer redemption made 1) contrary to the terms of each offer, discount, promotion or coupon; 2) that otherwise is not in compliance with our Terms of Use; 3) that violates any applicable law; or 4) that we believe is fraudulent or made through improper
1. Charging performance of reaching 80% in approximately 1 hour was measured under controlled conditions (ambient and cell temperature of 25 °C, with stable PV or AC charging power). Actual charging time may vary due to temperature, charging power fluctuations, or other environmental factors.
2. Compatibility tested with mainstream rooftop PV systems. Actual integration may vary depending on inverter, wiring, and installer setup. Rooftop solars are sold separately and are not included with this product.
3. The description of “44+ safeguards” and “100+ anomaly detectors” is based on EcoFlow’s internal BMS design specifications and testing data. These safeguards function as intended under proper product use and within rated conditions. Actual protective performance may vary depending on system configuration and operating environment.
4. Extreme-weather protection is based on EcoFlow internal design and testing. Operating range may vary depending on conditions, installation, and maintenance.
