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Bluetti Apex 300 Power Station vs EcoFlow Delta 3 Ultra

The Apex 300 is the better pick for a full-time RV or whole-home backup: 3,840W with real 120V and 240V output, TT-30R and NEMA 14-50R outlets, and expansion to 19,353.6Wh on one unit. The Delta 3 Ultra is smaller and lighter, charges faster from the wall, and runs quieter, but its rated output and expansion ceiling are lower. Owners rate both well; the Apex 300's common complaints are app and Bluetooth quirks, not power delivery.

  • Choose the Bluetti Apex 300 if you need 240V output, RV outlets, or a station you can grow past 19kWh without replacing it.
  • Choose the EcoFlow Delta 3 Ultra if you want a lighter, quieter unit that recharges fast and covers most household and campsite loads.

Prices

  • Bluetti Apex 300 Power Station: $1,398.00 at RV Parts Giant (checked today)
  • EcoFlow Delta 3 Ultra: $1,299.00 at Walmart (checked today)
  • Difference: the EcoFlow Delta 3 Ultra is $99.00 cheaper than the Bluetti Apex 300 Power Station today
Bluetti
Bluetti Apex 300

Bluetti Apex 300 Power Station

Bluetti Apex 300

4.5(431 ratings)
$1,398.00at RV Parts GiantChecked 2 h ago
See all prices and details
Visit RV Parts Giant
Pros
  • 240V output plus TT-30R and NEMA 14-50R for RVs and transfer switches
  • Expands to 19,353.6Wh on a single unit
  • 6,000+ cycle LiFePO4 rating
  • Two 1,200W solar inputs for fast panel charging
  • Owners report it runs AC, microwave and fridge together
Cons
  • 83.78 lbs before any expansion battery
  • Short Bluetooth range; app connection is unreliable past about 10 ft
  • App labeling and setup are unclear, and support is slow
  • DC output requires the separate Hub D1
EcoFlow
EcoFlow Delta 3 Ultra Portable Power Station

EcoFlow Delta 3 Ultra

EcoFlow Delta 3 Ultra Portable Power Station

4.6(22 ratings)
$1,299.00at WalmartChecked 12 min ago
See all prices and details
Visit Walmart
Pros
  • 0-80% wall charge in about 89 minutes
  • Quiet at 25dB under 600W load
  • 10ms auto-switch for backup use
  • Lighter and easier to move than the Apex 300
  • 5-year warranty
Cons
  • 3,600W rated output and about 11kWh expansion ceiling
  • No 240V or RV outlets built in
  • 3,000-cycle rating is half the Apex 300's
  • Only 22 ratings so far, so owner feedback is thin

What separates them

Bluetti Apex 300 Power StationEcoFlow Delta 3 Ultra
Rated AC output3,840W at 120V and 240V3,600W rated, 7,200W surge
Outlets for RVsTT-30R and NEMA 14-50R built inStandard AC outlets; RV use needs an adapter
Base capacity2,764.8Wh3,072Wh
Expansion ceilingUp to 19,353.6Wh with six B300K batteriesExpandable to about 11kWh
Wall recharge speed1,800W AC input0-80% in about 89 minutes
Solar inputTwo inputs, 1,200W eachUp to 800W
Cycle life6,000+ cycles to 80%3,000+ cycles to 80%
Weight and noise83.78 lbs; no published noise figureLighter build; 25dB under 600W load

Price history

$1,799.00$1,299.00
Nov 1Nov 10
  • Bluetti Apex 300 Power Station: lowest $1,352.84 on Nov 4 at RV Parts Giant; $1,398.00 on Nov 10.
  • EcoFlow Delta 3 Ultra: lowest $1,299.00 on Nov 1 at Outbound Power; $1,381.73 on Nov 10.

Prices at every store

Bluetti Apex 300 Power Station

  • RV Parts GiantNew

    In stock

    $1,398.00Free shippingChecked 2 h ago
    Visit RV Parts Giant
  • BluettiPower OfficialNew

    In stock

    $1,499.00Free shippingChecked 17 h ago
    Visit BluettiPower Official
  • WellbotsNew

    In stock

    $1,499.00Free shippingChecked 17 h ago
    Visit Wellbots
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $1,498.98Free shippingChecked 2 h ago
    Visit Amazon
All 13 stores and price history →

EcoFlow Delta 3 Ultra

  • WalmartNew

    In stockSold by EcoFlow Technology Inc.Returns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $1,299.00Free shippingChecked 12 min ago
    Visit Walmart
  • Best BuyNew

    In stock

    $1,299.00Free shippingChecked 18 h ago
    Visit Best Buy
  • The Home DepotNew

    In stock

    $1,381.73Free shippingChecked 56 min ago
    Visit The Home Depot
  • Outbound PowerNew

    Availability unknown

    $1,299.00Checked Nov 1
    Visit Outbound Power

Also available at

  • WalmartCheck price at Walmart
All 10 stores and price history →

Specs compared

SpecBluetti Apex 300 Power StationEcoFlow Delta 3 Ultra
TypeWall ChargerPortable
colorGrayBlack
Battery TypeLiFePO₄—
Cycle Life6,000+ cycles to 80% original capacity—
Capacity2764.8Wh (51.2V/54Ah)—
Inverter TypePure sine wave—
Lifting Power7,680W—
USB-C Port2 × 100W Max.—
USB-A Port2 × 15W, 5V/3A—
AC Input120V, 50/60Hz, 15A Max. 1,800W Max. with bypass—
Weight83.78 lbs / 38 kg—
Maximum Output24 volts—
Show all 23 specsShow fewer specs
SpecBluetti Apex 300 Power StationEcoFlow Delta 3 Ultra
size20.5 x 12.5 x 14.1 inches (AC300), 20.5 x 12.5 …—
With Inverter—Yes
Power Source—Propane, Solar
Power Output—7.2 kilowatts
Battery Capacity—3,072 Wh battery
Battery—LFP
AC Output—5,000W
Solar Input—Maximum
Bidirectional EV—Yes
Expandable

What reviewers say

Bluetti Apex 300 Power Station

  • 4.5 / 5431 ratings

Rated 4.5 out of 5 from 431 ratings. Owners treat it as a serious home-backup and RV unit rather than a portable one, and the modular expansion is the main draw.

What people mention
  • Output powerPraisedOwners say 3,840W handles RV air conditioners and large appliances at 120V and 240V.
  • ExpandabilityPraisedBuyers like adding B300K or B500K modules as needs grow instead of buying a new station.
  • WeightCriticisedAt 83.78 lbs it is a two-person lift and not something most owners carry far.
  • Battery lifePraisedThe LiFePO4 cells' 6,000+ cycle rating is cited as a reason to trust it for years of backup use.

EcoFlow Delta 3 Ultra

  • 4.6 / 522 ratings

Owners rate it 4.6 out of 5 across 22 ratings, with praise centered on output and capacity for backup use. Complaints tend to focus on weight and the cost of the propane option.

What people mention
  • OutputPraisedOwners say the 7.2 kW inverter handles large appliances and tools that smaller stations cannot.
  • CapacityPraisedThe 3,072 Wh battery is described as enough for extended outages and off-grid stays.
  • WeightCriticisedBuyers note it is heavy and awkward to carry, so it suits a fixed spot more than travel.
  • Propane chargingMixed
Reviews
  • The Best Portable Power Stations for 2026 - PCMag editors select and review products independently
  • The Best Portable Power Stations We've Tested for 2026

Questions and answers

Which is better for running an RV air conditioner?
The Apex 300. It delivers 3,840W at 120V and 240V through TT-30R and NEMA 14-50R outlets, so a 30A or 50A RV cord plugs in directly. The Delta 3 Ultra needs an adapter and has less rated output.
Which lasts longer?
The Apex 300 on paper: 6,000+ cycles to 80% versus 3,000+ for the Delta 3 Ultra. EcoFlow estimates about 10 years of typical use for its LFP cells, so both should hold up for years of regular camping.
Is the Delta 3 Ultra worth stepping up to over the Apex 300?
Only if fast wall charging, quiet operation and lighter weight matter more than output and expansion. For heavy loads or 240V, the Apex 300 is the stronger unit.
Can either power a whole house?
The Apex 300 is the more practical choice, with 240V output, a home integration kit and expansion to 19,353.6Wh. The Delta 3 Ultra's 10ms auto-switch suits backup for selected circuits, not a full panel.
Which charges faster from solar?
The Apex 300 accepts two 1,200W solar inputs. The Delta 3 Ultra tops out at 800W and reaches 0-80% in about 3.37 hours on solar.
How many batteries can I add?
The Apex 300 takes up to six B300K or B500K batteries, mixed if you like. The Delta 3 Ultra expands to roughly 11kWh.

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—
Yes
Charge Cycles—3,000+ to 80%
The propane option is seen as useful for long outages but adds fuel and setup overhead.