This flash sale is already more than half sold out, and beats even the Prime Big Deal Days price from earlier this month.
A limited-time flash sale just appeared on Amazon, and it's moving fast. The EcoFlow Delta 3 1800W portable power station with 15 outlets has dropped to an all-time low of $589, down from $999, and more than 51% of inventory has already sold at the time of writing. This price undercuts what we saw during Prime Big Deal Days earlier this month which is rare for such a recent product launch. The Delta 3 is the latest evolution of EcoFlow's celebrated Delta line and it is widely recognized as the premium benchmark for portable power stations.
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The 1536Wh lithium iron phosphate battery provides substantial capacity in a package that remains reasonably portable: Six AC outlets give you flexibility to run multiple devices simultaneously, each capable of delivering 1800W continuously. The X-Boost technology pushes that ceiling even higher to 2200W for resistive loads like space heaters, hair dryers, or power tools. This expanded wattage compatibility means the Delta 3 can handle 99% of household appliances.
Charging speed distinguishes this model from budget models. Connect to a usual wall outlet, and the Delta 3 charges all the way from flat to full in an impressive 1.5 hours with 1500W AC input capability. That's extremely swift for a unit with such a capacity. Charging from the sun at maximum efficiency takes 3.5 hours, and the optional 800W EcoFlow Alternator Charger completely recharges the battery in 2.1 hours from your steering column's alternator with the engine running.
The noise level deserves attention because most portable power stations sound like small generators when under load. EcoFlow's X-Quiet technology keeps operation at just 35 decibels for loads under 600W and 45 decibels up to 1200W. For context, 35 decibels is roughly equivalent to a whisper while 45 decibels approximates a refrigerator hum.
The transfer time matters if you're doing this for a home backup with sensitive electronics: The Delta 3 automatically switches over to battery power in less than 15 milliseconds if the grid fails. That's fast enough to keep network-attached storage devices, servers and point-of-sale terminals in continuous use with no interruption or data corruption.
Durability comes from LiFePO4 battery chemistry rated for 3,000 charge cycles while maintaining at least 70% of original capacity. In practical terms, that translates to roughly 10 years of daily use before noticeable degradation. The IP54 certification means the housing resists dust ingress and water splashes from any direction, making it suitable for construction sites or camping in light rain.
At this flash sale price, grabbing the Delta 3 1500 before inventory runs out makes a lot of sense.