DELTA 3 Ultra Plus

3600W Output—Powerful. Stable.
Built to Handle It All

DELTA 3 Ultra Plus 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.

Run Outdoor Gear. Power Your RV. Charge Your Essentials— One Station Powers it All

Whether you're parked at camp or on the road, the two DC ports—Anderson[2] and car cigarette port—keep 12V gear running, from portable car fridges to car vacuums and air pumps. When you need more power, the TT-30 port enables support for your entire RV setup. And for everyday use, the high-power USB-C port fast-charges laptops and phones with ease.

4 Ways to Charge Up — Ready in Just 60 Mins

Remote charging control for added peace of mind.

Smart Output Priority Tech

Pick Your Priority Outputs, Extend What Matters Most. Manage each outlet remotely from your phone. Prioritize essentials like your fridge or medical devices to extend runtime when it counts most.

Easily Scales Up—From Hours to Days

3–11kWh expandable capacity [9]

Compatible with Smart Generators for unlimited runtime

Long-Lasting, Durable, Always Ready for Emergencies

Automotive-Grade Full-Tab LFP Cells

Rugged exterior and intelligent BMS for unmatched reliability

Unrivaled Balance for Unmatched Battery Longevity

With 27% fewer cells per kWh, [16]our 16-cell design runs cooler, lasts longer, and delivers greater stability. Each cell is rigorously tested for capacity, voltage, and internal resistance—resulting in a highly uniform pack that protects against overcharging, imbalance, and premature wear.

Compatibility

[1] Based on proper product usage, DELTA 3 Ultra Plus 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.
[2] DELTA 3 Ultra Plus features an Anderson port, while DELTA 3 Ultra does not.
[3] EcoFlow Solar Panels are sold separately.
[4] 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.
[5] Feature requires preset activation via the EcoFlow App.
[6] To enable this feature, connect DELTA 3 Ultra Plus to the Smart Generator using the charging cable and enable the preset in the EcoFlow App. Communication is handled via Bluetooth or Wi-Fi.
[7] EcoFlow Alternator Charger Plus 1000 will be launched soon and is sold separately.
[8] Compared with car cigarette port charging.
[9] DELTA 3 Ultra Plus is expandable, while DELTA 3 Ultra is not expandable.
[10] Backup time based on ideal conditions; actual results may vary.
[11] Require connecting 1DELTA 3 Ultra Plus + 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.
[12] Require connecting 1DELTA 3 Ultra Plus + 2 DELTA Pro 3 Smart Extra Battery with EcoFlow Smart Extra Battery Expansion Adapter. * This adapter is currently not available in the Philippines.
[13] To use this feature, update the software to V6.15 or above and upgrade the firmware to V7.80.99.52 or above.
[14] Refers to the internal resistance of EF Full-Tab LFP Cells being 1.5mΩ, which is 25% lower than the 2mΩ internal resistance of the previous EF #C33 Battery Cell.
[15] 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.
[16] Compared with the previous usage of EF #C33 Battery Cell.
[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] Manual Transfer Swith is sold separately.
[20] This accessory should be purchased separately.
[21] 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.