BLUETTI AC240 vs vtoman FlashSpeed 1500

vtoman FlashSpeed 1500 portable power station

Pick this if

BLUETTI AC240

Continuous AC output: 2,400 W vs 1,500 W
Rated cycles: 3,500 cycles vs 3,000 cycles
UPS switchover: 15 ms vs 20 ms
Max expandable capacity: 10,136 Wh vs 3,096 Wh

Buyers who measure value in watts and watt-hours, not in grams and app screens.

Pick this if

vtoman FlashSpeed 1500

Capacity: 1,548 Wh vs 1,536 Wh
Weight: 41.4 lb vs 72.0 lb
List price: $610 vs $999
Cost per watt-hour: $0.39 vs $0.65

Drivers who mainly want jump-start capability plus basic backup power.

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	AC240	FlashSpeed 1500	What it means
Capacity	1,536 Wh	1,548 Wh	How much energy the unit stores. Sets how long everything else can run.
Continuous AC output	2,400 W	1,500 W	The largest load the inverter will run continuously, not counting surge.
Weight lower is better	72.0 lb	41.4 lb	The spec buyers most often regret ignoring.
List price lower is better	$999	$610	Vendor list price at the time of collection; street prices move.
Cost per watt-hour lower is better	$0.65	$0.39	Price divided by capacity. The fairest single value metric.
Watt-hours per pound	21.3 Wh/lb	37.4 Wh/lb	Capacity you get per pound carried.
Max solar input	1,200 W	—	Caps how large an array is useful, and therefore off-grid recharge speed.
AC recharge time lower is better	70 min	60 min	Vendor-stated time to full from a wall outlet.
Rated cycles	3,500 cycles	3,000 cycles	Vendor claim for charge cycles before capacity degrades to 80%.
UPS switchover lower is better	15 ms	20 ms	How long the unit takes to switch to battery. Under 20 ms keeps a desktop alive.
Max expandable capacity	10,136 Wh	3,096 Wh	How far the system can grow with add-on batteries.
Warranty	72 months	24 months	Stated warranty length from the vendor listing.

How each one ranks overall

BLUETTI AC240

#64 of 104 for Best value (cost per watt-hour) ($0.65)
#102 of 103 for Most portable (Wh per pound) (21.3 Wh/lb)
#26 of 106 for Most inverter headroom (156 W/100Wh)
#11 of 49 for Fastest AC recharge (1.3 kW)
#20 of 83 for Highest solar input (1.2 kW)
#13 of 36 for Most expandable (10.14 kWh)
#34 of 96 for Longest service life (5376 kWh)
#50 of 103 for Most output per dollar (2.40 W/$)
#15 of 106 for Best for home backup (74/100)
#1 of 105 for Longest warranty (72 mo)
#26 of 29 for Quietest under load (45 dB)

vtoman FlashSpeed 1500

#19 of 104 for Best value (cost per watt-hour) ($0.39)
#48 of 103 for Most portable (Wh per pound) (37.4 Wh/lb)
#93 of 106 for Most inverter headroom (97 W/100Wh)
#3 of 49 for Fastest AC recharge (1.5 kW)
#28 of 36 for Most expandable (3.10 kWh)
#38 of 96 for Longest service life (4644 kWh)
#49 of 103 for Most output per dollar (2.46 W/$)
#40 of 106 for Best for home backup (64/100)
#99 of 105 for Longest warranty (24 mo)

The brands behind them

BLUETTI

The value-and-power buyer who does not mind a heavy box

Best for: Buyers who measure value in watts and watt-hours, not in grams and app screens.

Not for: Buyers who need the lightest possible unit or the simplest possible interface.

Full BLUETTI profile →

VTOMAN

The car owner who wants roadside rescue and backup power in one box

Best for: Drivers who mainly want jump-start capability plus basic backup power.

Not for: Buyers whose priority is a refined, well-supported power station.

Full VTOMAN profile →

Where these numbers come from. Every figure on this page is taken from BLUETTI’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: www.bluettipower.com/products/ac240.

Vendor wording for each figure (9)

capacityWh: “Capacity => 1,536Wh”
acOutputW: “(2,400W Total)”
weight: “33kg / 72lbs”
solarInputW: “Solar Input => 1,200W Max.”
rechargeAcMinutes: “allowing a full charge in 70 minutes”
cycleLife: “3,500+ Cycles to 80% Original Capacity (Silent Mode)”
upsSwitchoverMs: “Seamless UPS in 15ms”
maxExpandableWh: “Expandable up to 10,136Wh with 4 B210 Batteries”
warrantyMonths: “6-year warranty”

Where these numbers come from. Every figure on this page is taken from vtoman’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: vtoman.com/products/vtoman-flashspeed-1500-power-station.

Vendor wording for each figure (8)

capacityWh: “Capacity => 1548Wh”
acOutputW: “AC Output(x3) => 1500W(Peak 3000W) in total, 110V~60Hz, Pure Sine Wave”
weight: “Net Weight => 18.8KG(41.4 lbs)”
rechargeAcMinutes: “Recharge to full within ONE hour.”
cycleLife: “Cycle Life => 3000 cycles to 80%”
upsSwitchoverMs: “Switches in under 20ms.”
maxExpandableWh: “Up to 3096WH”
warrantyMonths: “2-year Warranty”