How many amp hours is the EcoFlow Delta 2?

The Delta 2 is rated by energy, not amp-hours: 1,024 Wh of LiFePO4 capacity. Amp-hours only mean something once you fix a voltage. Referenced to a common 12 V system it's about 85 Ah (1,024 Wh ÷ 12 V). Referenced to the unit's own internal pack voltage it's a different Ah number. That's why EcoFlow publishes watt-hours — it's voltage-independent and the honest spec to compare.

How much does the EcoFlow Delta 2 weigh?

About 27 lb (12.2 kg). That makes it one of the lighter 1 kWh-class LiFePO4 stations — light enough to move room to room with one hand on the recessed handles, heavy enough that it's not a backpacking unit.

What are the EcoFlow Delta 2 dimensions?

Roughly 15.7 × 8.3 × 11 in (400 × 211 × 281 mm) — about the footprint of a small carry-on lying down. It fits on a closet shelf or in a car trunk without much fuss.

What is the EcoFlow Delta 2 AC output?

1,800 W continuous AC (2,700 W surge), or up to 2,400 W using X-Boost, EcoFlow's mode that runs higher-wattage resistive appliances by adjusting the output waveform. It has six AC outlets plus USB-A, 100 W USB-C, and a car port.

How long does the EcoFlow Delta 2 take to charge?

About 50 minutes to 80% and roughly 80 minutes to full from a wall outlet, drawing up to 1,200 W AC input. Solar input is up to 500 W, and you can combine AC and solar for faster top-ups.

Can you expand the EcoFlow Delta 2 capacity?

Yes. Adding the Delta 2 Extra Battery roughly doubles it to about 2,048 Wh, and pairing the Delta Max Extra Battery pushes it to around 3,040 Wh — useful if your real need is longer runtime rather than more outlets.

What battery chemistry does the EcoFlow Delta 2 use?

LiFePO4 (LFP), rated for 3,000+ cycles to 80% capacity — about 8–10 years of regular use. LFP runs cooler and lasts far longer than the older NMC chemistry found in many earlier power stations.

EcoFlow Delta 2 Specs Explained: Amp Hours, Weight, Dimensions & Full Spec Sheet

TL;DR · 30 seconds

1,024 Wh · LiFePO4 · 1,800 W AC (2,400 W X-Boost) · 27 lb · ~50 min to 80%. A mid-size, long-life power station that charges faster than almost anything in its class. If you came here asking about “amp hours,” the honest answer is watt-hours — we explain why below.

Full Delta 2 review → Jump to spec sheet ↓

Full spec sheet

Spec	EcoFlow Delta 2
Capacity	1,024 Wh
Battery chemistry	LiFePO4 (LFP)
Cycle life	3,000+ cycles to 80%
AC output (continuous)	1,800 W (2,700 W surge)
AC output (X-Boost)	up to 2,400 W
AC outlets	6 ×
USB-C	100 W
AC charge input (max)	1,200 W
Charge time (0–80%)	~50 min
Charge time (0–100%)	~80 min
Solar input (max)	500 W
Expandable to	~2,048 Wh / ~3,040 Wh
Weight	27 lb (12.2 kg)
Dimensions	15.7 × 8.3 × 11 in

”How many amp hours?” — the question, answered properly

This is the single most-searched spec for the Delta 2, and most pages answer it wrong by quoting a number with no voltage attached. An amp-hour figure is meaningless on its own, because:

Watt-hours (Wh) = Amp-hours (Ah) × Volts (V)

The Delta 2 stores 1,024 Wh. To turn that into amp-hours you have to choose a reference voltage:

Referenced to a 12 V system (how RV and marine folks think): 1,024 Wh ÷ 12 V ≈ 85 Ah. This is the number to use when you’re mentally comparing it to a 100 Ah lead-acid or LiFePO4 deep-cycle battery.
Referenced to the internal pack voltage (higher than 12 V): the Ah figure is correspondingly smaller for the same energy.

Weight and dimensions in context

At 27 lb (12.2 kg), the Delta 2 is on the lighter end of the 1 kWh LiFePO4 class — its LFP cells are heavier than old NMC packs but EcoFlow keeps the overall unit manageable. The recessed handles make it a one-hand carry across a room; it’s not something you backpack with, but it lives easily in a car trunk or a closet shelf.

The footprint — roughly 15.7 × 8.3 × 11 in — is about a small carry-on lying flat. That matters more than people expect: it’s the difference between fitting beside the spare tire and not.

How long will it actually run things?

A 1,024 Wh battery delivers usable energy after inverter losses (roughly 85–90% efficiency). Quick rules of thumb:

Mini fridge (~60 W average): ~13–15 hours
CPAP (no humidifier, ~30 W): ~25+ hours, easily an overnight
Full-size fridge (cycling, ~120 W average): ~7–8 hours
1,500 W space heater: under 40 minutes — high-draw resistive loads drain it fast

For a deeper runtime breakdown across capacities, see how long a 1000 / 2000 / 3000 Wh power station lasts.

★ Editor's Pick · Best mid-size all-rounder #1

EcoFlow ECOFLOW-DELTA-2

EcoFlow

EcoFlow DELTA 2

4.7 (4,863)

$429 USD · Free Prime shipping

Capacity 1,024Wh

AC Output 1,800W

Weight 27lb

Cycles 3,000

Check on Amazon →

+ Pros

· X-Stream wall recharge in 50 minutes — fastest 1 kWh class on the market

· 27 lb is class-leading for a 1 kWh LFP unit — 10 lb lighter than the Bluetti AC180

· 4,800+ reviews at 4.7 stars and Amazon 'Overall Pick' badge — the most validated unit in this tier

· 100W USB-C PD on the chassis itself runs a 16-inch MacBook Pro at peak charge speed

· Modular expansion to 3 kWh keeps the buy future-proof

− Cons

· $429 is the deal price; base list is $699 — expect creep back as the promotion rolls off

· 1,024 Wh fills the camping role but won't run a fridge for 24 hours straight

· App requires an EcoFlow account; a subset of buyers report sync issues on iOS

· Mixed long-term storage reports — a minority of users see charge drift if left below 30% for months

Should you size up to the Delta 2 Max?

If your real need is runtime rather than outlet count, the Delta 2 Max roughly doubles capacity in a similar form factor. And if fast recharge and price-per-watt-hour are your priorities, it’s worth cross-shopping the Anker SOLIX C2000 Gen 2, which charges to full in under an hour. Our EcoFlow vs Anker comparison lays the two brands side by side.