How fast does the DELTA 3 Classic charge from a wall outlet?

EcoFlow rates it at 0–80% in about 45 minutes on AC. Full charge takes a bit longer. It also accepts solar, car and extra-battery charging.

Can it run a refrigerator or a microwave?

Yes for most household fridges, which draw well under 1800W running. A microwave usually exceeds 1800W, so it relies on X-Boost, which handles devices up to 2600W but not every appliance.

What is the 10ms auto-switch for?

It switches the unit to battery power within 10ms of a grid outage, fast enough to keep a NAS, server or router running without a reboot. It is not a whole-home transfer switch.

How long do the batteries last?

The full-tab LFP cells are rated for about 10 years of regular use, backed by a 24/7 battery management system. Capacity fades gradually over that span.

Does it come with solar panels?

This listing is the power station. The bifacial panels and adjustable bracket are separate, so check what the bundle includes before buying.

How does it compare with the Delta 2?

The DELTA 3 Classic moves to LFP cells with a longer lifespan and faster AC charging, and keeps the 1800W output class. The Delta 2 is lighter but has a shorter-rated battery life.

Where is the EcoFlow DELTA 3 Classic Solar Generator cheapest?

At EcoFlow, for $669.00, as of our latest check.

EcoFlow DELTA 3 Classic Solar Generator

Best price now

$669.00at EcoFlowChecked 42 min ago

Prices are checked against each store and labelled with when.

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EcoFlow discount code →

EcoFlow DELTA 3 Classic Solar Generator

Best price now

$669.00at EcoFlowChecked 42 min ago

Prices are checked against each store and labelled with when.

Visit EcoFlow

EcoFlow discount code →

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Price facts

Lowest price today: $669.00 at EcoFlow (checked Nov 15, 2026).

Our take on the EcoFlow DELTA 3 Classic Solar Generator

The EcoFlow DELTA 3 Classic is a portable power station with an 1800W AC inverter (3600W surge) and X-Boost, so it can run fridges, microwaves and power tools that draw more than its rating. It charges from AC, solar, car or a second battery, and AC charging reaches 80% in about 45 minutes. Its LFP cells are rated for roughly 10 years of use, and the 10ms auto-switch makes it usable as a home backup for a NAS or router. It sits below EcoFlow's larger Delta Pro units on capacity but beats most same-class rivals on charge speed and quiet operation.

Best forHome backup for routers, NAS and fridgesCamping and RV trips with solar chargingPowering high-draw appliances through X-BoostQuiet indoor use

Pros

1800W continuous output with 3600W surge
X-Boost runs appliances rated up to 2600W
0–80% AC charge in about 45 minutes
10ms auto-switch for uninterrupted backup
LFP cells rated for around 10 years of use
Quiet at 30dB or less at moderate loads

Cons

Heavy for one-person carrying
Solar input limited compared with larger Delta models
Bifacial panels and bracket sold separately from the station
X-Boost can't run every high-wattage appliance reliably

EcoFlow DELTA 3 Classic Solar Generator prices at every store

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$669.00Checked 42 min ago
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About the EcoFlow DELTA 3 Classic Solar Generator

The EcoFlow DELTA 3 Classic Solar Generator is a portable power station paired with portable solar panels. It has 1800W AC output (3600W surge). X-Boost technology lets it power devices rated up to 2600W, including fridges, microwaves, laptops and heated blankets.

It offers 4 ways to charge. Charging over AC takes it from 0 to 80% in 45 minutes. The solar panels have a two-in-one bifacial design with up to 25% conversion efficiency and collect up to 25% more energy. A 30-60° adjustable bracket has an integrated angle guide. The panels use tempered glass with an ETFE coating and are rated IP68 for water and dust resistance.

The power station uses automotive-grade full-tab LFP cells rated for 10 years of use. It has 24/7 BMS protection and an EV-grade CTC structure. A 10ms auto-switch keeps critical devices such as NAS systems and servers running during an outage. Noise stays at or below 30dB at 600W. The OASIS 3.0 app provides real-time monitoring, Storm Guard backup, a self-powered mode and scheduled tasks.

AC output: 1800W (3600W surge)
X-Boost: Powers devices up to 2600W
AC charging: 0-80% in 45 minutes
Charging methods: 4
Battery: Automotive-grade full-tab LFP cells, 10-year service life
Protection: 24/7 BMS protection, EV-grade CTC structure
Backup switchover: 10ms auto-switch
Noise: 30dB or less at 600W
Solar panels: Bifacial, up to 25% conversion efficiency, tempered glass with ETFE coating
Panel bracket: Adjustable 30-60° with integrated angle guide
Panel rating: IP68
App: OASIS 3.0: real-time monitoring, Storm Guard backup, self-powered mode, scheduled tasks
Warranty: 3-year standard, plus 2-year extension through app registration
In the box: Solar-to-XT60 charging cable

Questions and answers

How fast does the DELTA 3 Classic charge from a wall outlet?: EcoFlow rates it at 0–80% in about 45 minutes on AC. Full charge takes a bit longer. It also accepts solar, car and extra-battery charging.
Can it run a refrigerator or a microwave?: Yes for most household fridges, which draw well under 1800W running. A microwave usually exceeds 1800W, so it relies on X-Boost, which handles devices up to 2600W but not every appliance.
What is the 10ms auto-switch for?: It switches the unit to battery power within 10ms of a grid outage, fast enough to keep a NAS, server or router running without a reboot. It is not a whole-home transfer switch.
How long do the batteries last?: The full-tab LFP cells are rated for about 10 years of regular use, backed by a 24/7 battery management system. Capacity fades gradually over that span.
Does it come with solar panels?: This listing is the power station. The bifacial panels and adjustable bracket are separate, so check what the bundle includes before buying.
How does it compare with the Delta 2?: The DELTA 3 Classic moves to LFP cells with a longer lifespan and faster AC charging, and keeps the 1800W output class. The Delta 2 is lighter but has a shorter-rated battery life.
Where is the EcoFlow DELTA 3 Classic Solar Generator cheapest?: At EcoFlow, for $669.00, as of our latest check.