FlashFish P66 Portable Power Station: Specs, Runtime & What It Can Run

What it can run, and for how long

A power station is a battery with an inverter: it stores energy as watt-hours (Wh) and delivers it as AC watts (W). The FlashFish P66 Portable Power Station stores 231 Wh, of which about 196 Wh reaches your appliances after losses, and its inverter limits the load to 300 W at a time.

Appliances this unit can run, with estimated runtime on a full charge
Appliance (typical)	Running / starting watts	Can it run it?	Runtime on a full charge
Refrigerator (modern, about 18–22 cu ft)	150 W / 600 W start	Check surge	3.3 h	42%
Chest freezer (about 7 cu ft)	100 W / 400 W start	Check surge	5.6 h	71%
Sump pump (1/3 hp)	800 W / 1,500 W start	No	—
Well pump (1/2 hp)	1,000 W / 2,100 W start	No	—
Gas furnace blower	750 W / 1,500 W start	No	—
Window air conditioner (5,000–8,000 BTU)	600 W / 1,800 W start	No	—
CPAP with heated humidifier	70 W	Yes	2.8 h	36%
Home oxygen concentrator	300 W	Yes	39 min	8%
Wi-Fi router and modem	25 W	Yes	7.8 h	100%
LED television (55 in)	100 W	Yes	2.0 h	25%
LED lighting (10 bulbs)	100 W	Yes	2.0 h	25%
Laptop and charger	60 W	Yes	3.3 h	42%
Phones and tablets charging (4)	40 W	Yes	4.9 h	62%
Ceiling or box fan	75 W / 150 W start	Yes	2.6 h	33%
Microwave oven (1,000 W cooking)	1,500 W	No	—
Coffee maker	900 W	No	—
Garage door opener (1/2 hp)	550 W / 1,100 W start	No	—
Washing machine	500 W / 1,300 W start	No	—
Electric space heater (1,500 W)	1,500 W	No	—
Central air conditioner (3-ton)	3,500 W / 10,500 W start	No	—

Wattstanding calculationWattstanding calculation — runtime = capacity (Wh) × 85% ÷ (running watts × duty cycle). The 85% covers inverter and conversion losses; duty cycle is the share of time the appliance actually draws power. Appliance wattages are typical planning values, not measurements — read the nameplate on your own appliance. Real runtime also depends on temperature, battery age and the maker's inverter efficiency.

Outage scenarios
Scenario	Running watts	Starting watts needed	Average draw	Fits	Estimated runtime
Essentials: refrigerator, router, lights, phones	315 W	765 W	225 W	Too much load	—
Essentials + sump pump	1,115 W	1,815 W	345 W	Too much load	—
Essentials + furnace blower + TV	1,165 W	1,915 W	700 W	Too much load	—
Essentials + window air conditioner	915 W	2,115 W	585 W	Too much load	—

Practical noteCooling appliances cycle on and off, so a refrigerator draws far less than its running watts over a day, but each start needs a brief surge. If a load's starting watts exceed the maker's surge rating, the inverter can shut down.

Recharging

Recharge time depends on the source. Solar numbers below are our calculation for the panel wattage shown, assuming 75% real-world output and the approximate annual-average peak sun hours for each region; winter and cloud cover cut them sharply.

Days of sun to refill from empty
Panel total	Basis	Florida and the Gulf Coast	Texas	California
100 W	—	0.6 sunny days	0.6 sunny days	0.6 sunny days
200 W	—	0.3 sunny days	0.3 sunny days	0.3 sunny days
400 W	—	0.1 sunny days	0.2 sunny days	0.1 sunny days

Practical noteThe sources we read do not state this model's charging limits. Check the maker's page before pairing panels or a generator.

See the solar recharge calculator for your own panel size and sun hours.

Connecting it to a home

You can plug appliances straight into the unit's outlets. Powering a home's circuits is different: it needs a properly rated transfer switch or the maker's home-integration hardware, installed by a licensed electrician.

SafetyNever plug a generator or battery system into a wall outlet to power the house ("backfeeding"): it can send electricity back into the utility lines and injure line workers, and it can start fires. Connecting a generator to a home's wiring is a job for a licensed electrician, with the permit and inspection your local code requires. Wattstanding does not give wiring instructions.

If you plan to connect it to the house, compare it with the equipment in our transfer switch and hookup library and read the whole-house guide.

Fit check before you buy

Checks to make against your loads and your plan before ordering.

✓ Required? Check firsti Good to know

✓Loads fit the outputAdd up the running watts of everything you will run together; keep the total under 300 W.
?Starting surgeNo surge rating was stated in the sources we read; confirm with the maker before running motors.
?Outlets and voltageCheck the outlet types against your plugs.
iRecharge planDecide how you will refill it: wall power, solar or a generator, within its stated input limits.

Specifications

Each figure is labelled with where it comes from. Numbered references link to the source list below.

Manufacturer storeRetailer listingWattstanding calculationNot verified

Published specifications

Battery capacity	231 Wh[S1]	Manufacturer store
Continuous AC output	300 W[S1]	Manufacturer store
Warranty	1 Year Hassle-Free Warranty[S1]	Manufacturer store

Wattstanding calculations

Usable energy (85% of capacity)	196 Wh	Wattstanding calculation
Refrigerator runtime (typical)	3.3 h	Wattstanding calculation
Price per kWh of storage	$563	Wattstanding calculation

Limitations to weigh

Specifications are the maker's or seller's; Wattstanding has not tested this product.
Runtime figures are calculations with stated assumptions, not measurements.
Prices change; confirm the price, stock and what is included before ordering.
No surge rating was found in the sources we read.

Alternatives worth comparing

FlashFish BP030B Portable Power Station230 Wh, 300 W; $10 less

Westinghouse Outdoor Power iGen400s Portable Power Station183 Wh, 100 W; $39 more

BLUETTI Elite 10 Mini Power Station128 Wh, 200 W; $11 less

PECRON E300LFP Portable Power Station 600W 288Wh (E300LFP-1)288 Wh, 600 W; $49 more

Where to buy

Our link opens this exact product page. Prices and stock change; check before you order.

$129.99Flashfish listed price (base model) · seen 30 Sep 2026

View at Flashfish

Every link opens the product page for this exact model. We may earn a commission; it never changes what we publish. Disclosure

Questions buyers ask

How long will the FlashFish P66 Portable Power Station run a refrigerator?

About 3.3 h on a full charge by our calculation (typical modern refrigerator, 40% duty cycle, 85% efficiency). Your refrigerator's nameplate and its door-opening habits change this.

Can the FlashFish P66 Portable Power Station run a sump pump or well pump?

Sump pump (1/3 hp): no. Well pump (1/2 hp): no. These use typical wattages; read the pump's nameplate.

Can I use it to power my whole house?

Not by plugging the house into it. With 231 Wh it holds about 1% of one day's energy for a home that uses 30 kWh a day (an example figure — check your own bill), and connecting it to home wiring needs a licensed electrician.

Where can I buy the FlashFish P66 Portable Power Station?

1 seller list it: Flashfish.

Sources and verification

Flashfish — FlashFish P66 Portable Power Station — product page and specifications Retrieved 30 Sep 2026

Wattstanding has not tested this product hands-on. This reference is compiled from the sources above; our calculations are labelled and show their working. Electrical work belongs to a licensed electrician. Last verified 30 Sep 2026. How we work

FlashFish P66 Portable Power Station

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