DELTA 3 Ultra Plus (3072Wh) delivers 3600W rated-output (7200W surge) , with X-Boost™ 3.0 technology, it supports devices up to 4600W—effortlessly handling heavy-duty appliances. The inverter samples AC voltage and current every 33µs with high precision with a DSP chip, ensuring a pure sine wave output with beyond grid-level stability—ideal for powering sensitive electronics reliably.
Easily Scales Up—From Hours to Days
3–11kWh expandable capacity
Compatible with Smart Generators for unlimited runtime
Go Hybrid—Extend Backup with a Smart Generator
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Pair DELTA 3 Ultra Plus (3072Wh) with an EcoFlow Smart Generator [6] to achieve longer runtime—automatically switching between fuel and battery to keep you powered through multi-day outages or off-grid adventure.
Two Easy Ways to Connect to Your Home
Wall Charging - 1800W Input, 0-80% in 89 mins. [9] EcoFlow’s exclusive Storm Guard Mode [10] monitors severe weather alerts and automatically triggers AC charging remotely using industry-leading X-Stream fast charging tech—so it can be ready long before a disaster hits.
Generator Charging - Charges at up to 3200W via smart generator—0–80% in 53 minutes. With exclusive Generator Auto Start/Stop Mode, [11] the EcoFlow Smart Generator 4000 (Dual Fuel) recharges DELTA 3 Ultra Plus (3072Wh) automatically when battery levels run low—delivering hands-free backup power for storms, outages, and off-grid use.
Solar Charging - 1600W input, 0–80% in 101 mins. After the storm clears, just 101 mins of sunlight is all it takes to recharge DELTA 3 Ultra Plus (3072Wh). Pair it with EcoFlow 400W Solar Panels (25% high-efficiency) for reliable power during camping trips, van life, or off-grid living. [12]
Alternator Charging - 1000W Input, 0-80% in 142 mins. With EcoFlow Alternator Charger Plus 1000, [13] get ready in just over 2 hours while on the move—10× faster than conventional solutions. [14]
Solar + Generator Dual Charging - 3960W Input, 0-80% in 48 mins. Fastest charge in just 48 mins with 3960W dual input from solar panels and the Smart Generator 4000.
Solar + Alternator Dual Charging - 2600W Input, 0-80% in 60 mins. Dual input from 1600W solar and 1000W alternator charging keeps you powered faster than ever, even on the go.
Deeper Insights, Easier Control
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Monitor your energy usage, savings, and solar generation—all with one intuitive dashboard. Easily track battery status, real-time electricity rates, and financial savings.
[1] 0-80% in 48 minutes was measured in optimal conditions using the EcoFlow Smart Generator 4000 (Dual Fuel) and Solar Panels, total 3960W input.
[2] Based on proper product usage, DELTA 3 Ultra Plus (3072Wh) is estimated to have a lifespan of approximately 10 years, according to internal simulation test data. This information is for reference only; actual user experience may vary.
[3] Multiple appliances' backup time based on ideal conditions; actual results may vary.
[4] Require connecting 1*DELTA 3 Ultra Plus (3072Wh) + 2* DELTA 3 Max Plus Smart Extra Battery with EcoFlow Smart Extra Battery Expansion Adapter. The EcoFlow Extra Battery Expansion Adapter will be released soon.
[5] Require connecting 1*DELTA 3 Ultra Plus (3072Wh) + 2* DELTA Pro 3 Smart Extra Battery with EcoFlow Smart Extra Battery Expansion Adapter. The EcoFlow Extra Battery Expansion Adapter will be released soon.
[6] EcoFlow Smart Generators are sold separately.
[7] Manual Transfer Swith is sold separately.
[8] This accessory should be purchased separately.
[9] All charging speed data comes from EcoFlow labs and is for reference only. The actual data may vary slightly depending on the usage environment, device condition, software version, and other factors.
[10] Feature requires preset activation via the EcoFlow App.
[11] To enable this feature, connect DELTA 3 Ultra Plus (3072Wh) to the Smart Generator using the charging cable and enable the preset in the EcoFlow App. Communication is handled via Bluetooth or Wi-Fi.
[12] EcoFlow Solar Panels are sold separately.
[13] EcoFlow Alternator Charger Plus 1000 will be launched soon and it's sold separately.
[14] Compared with car cigarette port charging.
[15] Refers to the internal resistance of EF Full-Tab LFP Cells being 1.5mO, which is 25% lower than the 2mO internal resistance of the previous EF #C33 Battery Cell.
[16] A 25% reduction in single-cell internal resistance. According to the heat generation formula Q = I²Rt, under the same current, a 25% reduction in resistance leads to a proportional 25% decrease in heat generation.
[17] Unless otherwise noted, all above data comes from EcoFlow labs and is for reference only. The actual data may vary slightly depending on the usage environment, device condition, software version, and other factors.
[18] Noise levels measured at 1m under 25°C ambient: =25dB (600W) for charging/discharging.[19] Unless otherwise noted, all images, videos, and screen display contents about the product itself on this page are for reference only. Actual product effects (including but not limited to appearance, color, and size) and screen display contents (including but not limited to backgrounds, UI, and illustrations) may vary.
[19] Unless otherwise noted, all images, videos, and screen display contents about the product itself on this page are for reference only. Actual product effects (including but not limited to appearance, color, and size) and screen display contents (including but not limited to backgrounds, UI, and illustrations) may vary.
Specs
Net Weight
33.7±0.6kg
Dimensions (HWD)
613.1mm×327.71mm×394.95mm
Rated Capacity
3072Wh 51.2V 60Ah
Cell Chemistry
LFP(LiFePO4)
AC Output
120V~60Hz 3600W total (surge 7200W),
20A(x4) Max per port, 30A(x1) Max per port
X-Boost
4600W
USB-A Output
USB-A(x1): 5V-3A/9V-2A/12V-1.5A, 18W Max
USB-C Output
USB-C(x1): 5/9/12/15V-3A, 20V/28V--5A, 140W Max(HID)
USB-C(x2): 5/9V/12V/15V-3A 20V-2.25A, 45W Max per port, total 45W
12V DC Output Port
12.6V-30A, 378W Total
Anderson: 30A Max (Shared power with car cigarette lighter)
Cigarette Lighter Output Port
12.6V-10A, 126W Total
CAR:10A Max (Shared power with Anderson port)
AC Input (Charge Only)
100-120V~15A 50/60Hz
Maximum PV Input Power(W)
1600W
Optimal operating temperature
20°C to 30°C (68°F to 86°F)
Charge Temperature
0°C-45°C(32°F-113°F)
Discharge Temperature
-10 to 45°C(14°F-113°F)
Storage Temperature
-10 to 45°C(14°F-113°F)
Warranty
5-Year Warranty
*Includes 3-year standard warranty and 2-year extended warranty available upon EcoFlow App registration.
Communication Method
Wi-Fi & Bluetooth
UPS
<10ms
