EcoFlow DELTA Pro 3 vs Anker SOLIX F3800 Plus
Both give you 120V and 240V power and grow with extra batteries. They differ on output, solar input and price.
Pick the Anker F3800 Plus if you need to run big 240V loads or want the most solar input. It has 6,000 W of output against EcoFlow's 4,000 W.
Pick the EcoFlow DELTA Pro 3 if you want slightly more stored energy, wheels and a handle, and fast wall charging, and your loads stay under 4,000 W.
Side by side
| Spec | EcoFlow DELTA Pro 3 | Anker SOLIX F3800 Plus |
|---|---|---|
| Battery capacity | 4,096 Wh | 3,840 Wh |
| Continuous output | 4,000 W | 6,000 W |
| Surge | 8,000 W | 9,000 W |
| Voltage | 120V and 240V | 120V and 240V |
| Max expansion | Up to 48 kWh system | 26.9 kWh |
| Solar input | 2,600 W | 3,200 W |
| Wall charging | 0–80% in about 50 min | Standard AC |
| Battery | LFP, 4,000+ cycles to 80% | LFP, 10+ year life |
| Weight | About 114 lb | Not published in our sources |
| Warranty | 5 years | 5 years |
| List price | $3,699 | $2,799 |
Both prices drop often. The DELTA Pro 3 has been listed around $2,300 on sale, which changes the value picture, so check both before you buy.
Power output: Anker wins
Output decides what you can run at the same time. With 6,000 W, the F3800 Plus can run a well pump, fridge, freezer and lights together with room to spare. The DELTA Pro 3's 4,000 W covers essentials, but a 240V well pump plus a few kitchen loads gets close to its limit. EcoFlow's X-Boost mode can reach 6,000 W for resistive loads such as heaters, but it lowers voltage to do it, so it does not help motors.
Capacity and expansion: close, EcoFlow ahead
Out of the box the EcoFlow stores 256 Wh more, which is about an hour of a typical fridge. Both accept extra battery packs. EcoFlow's system reaches higher total capacity, which matters if you plan to run a home for several days.
Solar charging: Anker wins
The F3800 Plus accepts 3,200 W of solar against 2,600 W for the DELTA Pro 3. In a long outage, more solar input means more of the battery refills each sunny day.
Portability and charging: EcoFlow wins
The DELTA Pro 3 has wheels and a telescopic handle and charges from the wall to 80% in under an hour. That makes it easier to move and quicker to top up before a storm arrives.
Which should you buy?
Anker F3800 Plus
- You have a well pump or other 240V motor
- You want the most solar input
- You want the lower list price
EcoFlow DELTA Pro 3
- Your loads stay under 4,000 W
- You want to move it around
- You want fast charging before a storm
Not sure what your home draws? Use our outage load calculator to add up your appliances, then compare.
Specs and prices come from manufacturer listings and published reviews. We have not lab-tested these units. Prices change often, so check the current price before you buy.