ALLPOWERS R3500 vs EcoFlow DELTA 3 Ultra

EcoFlow DELTA 3 Ultra portable power station

Pick this if

ALLPOWERS R3500

Capacity: 3,168 Wh vs 3,072 Wh
Cost per watt-hour: $0.45 vs $0.46

Budget buyers who want a station and a panel together at the lowest total price.

Pick this if

EcoFlow DELTA 3 Ultra

Continuous AC output: 3,600 W vs 3,200 W
Weight: 72.1 lb vs 93.0 lb
List price: $1,399 vs $1,424
Watt-hours per pound: 42.6 Wh/lb vs 34.1 Wh/lb

Buyers who want one system to grow from camping into home backup.

Spec by spec

A green arrow marks the better figure on each row. Rows where only one unit publishes a number are shown without a winner rather than guessed.

Metric	R3500	DELTA 3 Ultra	What it means
Capacity	3,168 Wh	3,072 Wh	How much energy the unit stores. Sets how long everything else can run.
Continuous AC output	3,200 W	3,600 W	The largest load the inverter will run continuously, not counting surge.
Weight lower is better	93.0 lb	72.1 lb	The spec buyers most often regret ignoring.
List price lower is better	$1,424	$1,399	Vendor list price at the time of collection; street prices move.
Cost per watt-hour lower is better	$0.45	$0.46	Price divided by capacity. The fairest single value metric.
Watt-hours per pound	34.1 Wh/lb	42.6 Wh/lb	Capacity you get per pound carried.
Max solar input	2,000 W	3,200 W	Caps how large an array is useful, and therefore off-grid recharge speed.
Rated cycles	3,500 cycles	—	Vendor claim for charge cycles before capacity degrades to 80%.
UPS switchover lower is better	15 ms	—	How long the unit takes to switch to battery. Under 20 ms keeps a desktop alive.
Max expandable capacity	6,336 Wh	—	How far the system can grow with add-on batteries.
Warranty	60 months	60 months	Stated warranty length from the vendor listing.

How each one ranks overall

ALLPOWERS R3500

#31 of 104 for Best value (cost per watt-hour) ($0.45)
#63 of 103 for Most portable (Wh per pound) (34.1 Wh/lb)
#86 of 106 for Most inverter headroom (101 W/100Wh)
#17 of 83 for Highest solar input (2 kW)
#18 of 36 for Most expandable (6.34 kWh)
#13 of 96 for Longest service life (11088 kWh)
#54 of 103 for Most output per dollar (2.25 W/$)
#6 of 106 for Best for home backup (83/100)
#67 of 105 for Longest warranty (60 mo)

EcoFlow DELTA 3 Ultra

#32 of 104 for Best value (cost per watt-hour) ($0.46)
#21 of 103 for Most portable (Wh per pound) (42.6 Wh/lb)
#60 of 106 for Most inverter headroom (117 W/100Wh)
#4 of 83 for Highest solar input (3.2 kW)
#44 of 103 for Most output per dollar (2.57 W/$)
#33 of 106 for Best for home backup (67/100)
#21 of 105 for Longest warranty (60 mo)
#5 of 29 for Quietest under load (25 dB)

The brands behind them

ALLPOWERS

The budget camper who wants a station and a panel in one order

Best for: Budget buyers who want a station and a panel together at the lowest total price.

Not for: Buyers who need reliable support, apps or long-term serviceability.

Full ALLPOWERS profile →

EcoFlow

The tech-forward buyer who reads the spec sheet and wants room to grow

Best for: Buyers who want one system to grow from camping into home backup.

Not for: Buyers who want the lowest cost per watt-hour and will never use an app.

Full EcoFlow profile →

Where these numbers come from. Every figure on this page is taken from ALLPOWERS’s own product listing and is stored with the vendor’s exact wording, reproduced below. We do not estimate missing specs — a field the vendor does not publish is shown as “—” and excluded from rankings. Source: iallpowers.com/products/allpowers-r3500-portable-power-station-3200w-3168wh.

Vendor wording for each figure (8)

capacityWh: “3,168Wh 48V 66A”
acOutputW: “3200W(Surged 6000W)”
weight: “93.00 lbs / 42.00kg”
solarInputW: “2000W Max. XT60”
cycleLife: “over 3,500 charging cycles”
upsSwitchoverMs: “15ms uninterruptible home backup UPS”
maxExpandableWh: “3,168Wh-6,336Wh”
warrantyMonths: “5-year Warranty”

Where these numbers come from. Every figure on this page is taken from EcoFlow’s own product listing and is stored with the vendor’s exact wording, reproduced below. We do not estimate missing specs — a field the vendor does not publish is shown as “—” and excluded from rankings. Source: us.ecoflow.com/products/ecoflow-delta-3-ultra-portable-power-station-3072wh.

Vendor wording for each figure (5)