Brand comparison / matched 1 kWh models

BLUETTI
vs EcoFlow.

Two brands. Two comparable base units. Choose for your load, outage duration and complete system cost.

Start here: Elite 100 V2 and DELTA 3 Plus have the same rated energy and continuous AC output. Carry weight and expansion options help narrow the choice. The right model still depends on your setup.

U.S. base-model comparison • Specifications reviewed October 4, 2026 • No hands-on performance ranking

DOES A 1 kWh BASE UNIT FIT?

Battery target640 Wh
Planning runtime / either base6.40 h
Raw energy0.48 kWh
Entered average load120 W

Target = W × hours ÷ 0.90 × 1.20.
Runtime = 1,024 Wh × 0.90 ÷ 1.20 ÷ W.

Assumes full charge, 90% efficiency and 20% planning margin. Equal calculated runtime does not establish equal tested performance. Check peak demand separately.

SEE BOTH ENERGY MATCHES →
The matched pair

Same Size Class. Different Priorities.

Lighter listed base unit
BLUETTI

Elite 100 V2

Base battery1,024 Wh
Continuous AC1,800 W

Prioritize carry weight? Put this model on your shortlist, then check the ports and complete accessory cost.

Checking the energy target…
VIEW OFFICIAL MODEL →
Documented extra-battery options
EcoFlow

DELTA 3 Plus

Base battery1,024 Wh
Continuous AC1,800 W

Planning to grow storage? Compare supported batteries, connection requirements and total configuration cost.

Checking the energy target…
VIEW OFFICIAL MODEL →

Generic power-station illustrations, not product photographs. “Target met” means the entered energy budget fits; it is not a guarantee of appliance compatibility or runtime.

Published specifications

The Numbers, Side by Side.

Manufacturer specifications for U.S. base models.
SpecificationBLUETTI Elite 100 V2EcoFlow DELTA 3 Plus
Rated battery1,024 Wh1,024 Wh
Continuous AC output1,800 W total1,800 W total
Listed weight25 lb / 11.5 kg27.6 lb / 12.5 kg
Cell chemistryLiFePO₄LFP / LiFePO₄
Published transfer time≤10 ms<10 ms
AC charging claim80% in 45 minutesFull charge in 56 minutes
Maximum solar input1,000 W; 12–60 V, 20 A1,000 W total; two 500 W inputs, 11–60 V each

Elite 100 V2

Rated battery1,024 Wh
Continuous AC output1,800 W total
Listed weight25 lb / 11.5 kg
Cell chemistryLiFePO₄
Published transfer time≤10 ms
AC charging claim80% in 45 minutes
Maximum solar input1,000 W; 12–60 V, 20 A

DELTA 3 Plus

Rated battery1,024 Wh
Continuous AC output1,800 W total
Listed weight27.6 lb / 12.5 kg
Cell chemistryLFP / LiFePO₄
Published transfer time<10 ms
AC charging claimFull charge in 56 minutes
Maximum solar input1,000 W total; two 500 W inputs, 11–60 V each

Charging claims use different endpoints: 80% versus full. They cannot establish a charging-speed winner. Transfer-time claims do not guarantee that every connected device will continue without rebooting. Solar wattage alone does not establish panel compatibility.

Choose by the job

What Matters Most in Your Setup?

01 / CARRY OFTEN

Compare handling.

BLUETTI has the lower listed base-unit weight in this pair. Consider handle comfort, cables and panels too; your carried system includes more than the battery.

02 / GROW CAPACITY

Price the full configuration.

EcoFlow lists compatible extra-battery configurations. BLUETTI also lists accessory bundles including Charger 2, B300K and DC Hub. Verify how each exact arrangement supplies energy, required cables and usable output before comparing expanded totals.

03 / KEEP AN OFFICE RUNNING

Measure the entire desk.

Include monitors, router, laptop supply and other loads. Check transfer behavior and low-load timeouts with your equipment. A large inverter rating does not tell you how many hours the desk will run.

Capacity before brand preference

A Bigger Load Changes the Answer.

At 300 W for eight hours, the planning target is 3.20 kWh. Both base units fall below that energy budget. Compare a supported larger configuration or a reliable recharge plan.

TRY YOUR OWN LOAD ↑
Before checkout

Compare the Complete Backup System.

01 / Energy & power

Wh determines stored energy. W determines the running power a source can deliver. Verify each appliance’s starting demand separately; do not count boost modes as ordinary continuous output.

02 / Recharge pathway

Check mains access during the outage, solar voltage/current limits, panel configuration and local daylight. Treat maximum input power as a limit, not a promise of all-day energy production.

03 / Expansion & ports

Confirm battery compatibility for the exact model and firmware, approved cables, accessory costs and connector requirements. Different add-on arrangements may have different operating limits.

04 / Delivered price

Compare the same market, taxes, shipping, required cables and warranty terms. For each base unit, price per rated Wh = delivered base-unit price ÷ 1,024. This metric does not measure efficiency or service quality.

Zaron methodology

Visible Assumptions. Editable Inputs.

Measure loadUse average watts for energy, with cycling loads measured over a representative period.W
Set durationChoose the hours that must be covered before a dependable recharge opportunity.h
Allow reserveDivide raw energy by 0.90 and add a 20% planning margin.Wh
Check powerVerify simultaneous running watts, startup demand and connection requirements separately.FIT
120 W × 4 h = 480 Wh raw energy
480 ÷ 0.90 × 1.20 = 640 Wh target
1,024 × 0.90 ÷ 1.20 ÷ 120 = 6.40 planning hours

Efficiency and margin are planning assumptions, not measured model-specific results. Temperature, aging, inverter standby draw, device cycling and accessory losses can change runtime. No recharge or other loads are included. The tool compares base capacities only.

Sources & evidence

Verify the Exact Model.

  1. BLUETTI U.S. — Elite 100 V2 official product page
  2. EcoFlow U.S. — DELTA 3 Plus official product page
Based on manufacturer specifications reviewed October 4, 2026. No independent testing, affiliate tracking, universal brand winner or fixed sale price is claimed. Check current manuals, configuration, warranty, availability and delivery date before buying.
FAQ

Clear Answers Before You Buy.

Is BLUETTI better than EcoFlow?

Compare specific models for your requirements. This matched pair highlights handling and configuration differences; it cannot establish a winner across either entire brand.

Will both run my equipment for the same time?

The calculator gives the same estimate because the rated base capacity and assumptions are identical. Actual runtime requires measurement under the same load and conditions.

Does 1,800 W mean 1,800 Wh?

No. Watts describe power at a moment; watt-hours describe stored energy. A device can stay below the inverter’s power rating and still empty the battery before the planned duration.

Which charges faster?

The published claims shown here end at different charge levels. Compare identical starting charge, endpoint, charging mode and conditions before ranking speed.

Can I connect a panel from another brand?

Check the exact manual, voltage range, open-circuit voltage in cold weather, current limit, connectors and polarity. Brand name and panel wattage alone do not confirm compatibility.

Can either base unit back up a whole home?

Whole-home planning needs a load inventory, enough energy, suitable output and an approved connection arrangement. This base-unit energy comparison does not establish whole-home capability.