
EcoFlow DELTA 3 Max Plus
EcoFlow DELTA 3 Max Plus
SKU: EFD3MP-US
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- Price: $1,049.00
- Regular price
- List Price: $1,899.00
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- Price: $1,049.00
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PRODUCT DESCRIPTION
Description
EcoFlow DELTA 3 Max Plus



The EcoFlow DELTA 3 Max Plus delivers 3000W continuous power with 6000W surge capacity, making it capable of running demanding appliances like refrigerators, washers, and power tools. Its X-Boost™ technology extends compatibility to devices requiring up to 3800W. The 2048Wh battery charges from 0-80% in just 43 minutes using generator input, and expands to 10kWh with additional modules for extended runtime. Five charging methods provide flexibility for any situation. Smart output prioritization through the mobile app lets you allocate power strategically across circuits, optimizing runtime based on your essential loads.
- 1-5kWh expandable with DELTA 3 Extra Battery, DELTA 2 Extra Battery or DELTA 2 Max Extra Battery (with Alternator Charger XT150 Output Cable), DELTA Pro 3 Extra Battery (with Alternator Charger XT150 Output Cable & Smart Generator Adapter).
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1800W AC output, 2200W (surge 3600W) with X-Boost
- 5 fast recharging methods (AC, Solar, 800W Alternator Charger, Smart Generator 3000 (Dual Fuel), Multicharging)
- 5-year warranty

Up to 3x the runtime
2-4kWh expandable capacity to fit your energy storage needs. Add up to two DELTA 3 Max Plus (2048Wh) Smart Extra Batteries to gain a capacity of 6144Wh for DELTA 3 Max Plus (2048Wh) and 7168Wh for DELTA 3 Ultra Plus (3072Wh),* giving you extended runtime for home backup, RVing, outdoor adventures, and everyday use.
Compact size
The extra battery’s overall volume is reduced by approximately 25% compared to the DELTA 2 Max Smart Extra Battery.
DELTA 3 Max Plus Extra Battery
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Expandable capacity - Increase the capacity of DELTA 3 Max Plus and DELTA 3 Ultra Plus with an extra 2048Wh.
- Compact size - The extra battery's overall volume is reduced by approximately 25% compared to the DELTA 2 Max Smart Extra Battery, making it easier to store, carry and stack.
- Long lifespan with an LFP battery.
- Easy to use - Plug-and-play without setup. Monitor the charge level and temperature via the EcoFlow App.
- Up to 5-Year Warranty - Get peace of mind with a 3-year standard warranty and 2 additional years when you register through the EcoFlow App.
Specifications
| Feature | Specification |
| Capacity | 2048Wh |
| AC Output | 2400W Total (Surge 4800W) |
| Max Device Power | 3400W (with X-Boost 3.0) |
| Battery Chemistry | Full-tab LFP (LiFePO4) |
| Cycle Life | 4,000 Cycles to 80%+ Capacity |
| AC Charging Speed | 0-80% in 68 Minutes |
| Solar Input | 500W Max (11V-60V, 15A) |
| UPS Switchover | <10ms (NAS and HID supported) |
| Weight | Approx. 44.8 lbs (20.3 kg) |
| Dimensions | 19.45 x 9.41 x 12.01 inches |
What’s in the Box:
- 1 x EcoFlow DELTA 3 Max Portable Power Station
- 1 x AC Charging Cable
- 1 x Car Charging Cable
- 1 x DC5521 to DC5525 Cable
- 1 x User Manual & Warranty Card
FAQs:
1. How long can the DELTA 3 Max power a refrigerator? With its 2048Wh capacity, the DELTA 3 Max can typically run a standard residential fridge (approx. 120W) for 14–16 hours. This runtime can be extended significantly by adding solar panels or utilizing the EcoFlow app to manage energy-saving settings.
2. Can I use the DELTA 3 Max as a backup for my computer or server? Yes. It features a professional-grade <10ms UPS (Uninterruptible Power Supply) switchover. This is fast enough to keep sensitive equipment like desktop computers and NAS servers running without a reboot during a power failure.
3. Is the DELTA 3 Max loud while it is running? The DELTA 3 Max is designed for "Whisper-Quiet" operation. At loads under 600W, the noise levels stay at or below 25dB—which is quieter than a library—making it ideal for indoor use or sleeping in a camper.

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OveraReview for delta 3 plus max + 800w alternator charger COMBO from the website. The unit is amazing and i have tested it on overnight cooks as i run a smoker on bbq competitions for 10-16hrs at a time. Great unit for all your needs The alternator charger was easier to install and its built like a tank. That said ONLY NOCKING 1 star because the new delta 3 plus units have a 4 prong connector to splice in the other batteries but the alternator charger comes with the older 2 prong connector that was in the Gen 2 of these batteries. You can still connect them with the 2 to 4 adaptor (the smart generator adaptor) but that does NOT come in the box. I reached out to live support and after some explaining, ecoflow sent me the adaptor free off charge (its around 70 bucks without offers). I am pretty happy with the experience and this is still 20x easier than wiring my own batteries for an overlanding build / camping build in my car. The unit is easy to use and the ecoflow app is pretty nifty.! A lot of the reviews i found only are for old firmware/software when the beta came out so just look at the date of the review and a lot of the issues have been pathched. The alternator charger has PLENTY of wire to go from the battery, under your trim pcs, all the way to your trunk if you wanted it to. The unit is about 45lbs (i think?) so not super heavy for what you get. The handles can take some abuse so easy to pick it up and move it around. With the alternator charger at 400w draw (well within the 800w rated capacity).. i can charge the unit in a couple hours (about 5 from zero).. but lets be honest, even running the ecoflow AC for 7 hrs wont drain this to zero. Do your math if you carry extra camp lights and coolers and what not for draw, add whatever safety factor you want to use and you can see if 2k watts is enough. The 4 plugs in the front and usb c ports are all i need tbdll, happy with the combo.
Great fast charging great battery power fits my needs