How Many Times Can a Power Station Charge a Laptop?

By Hicham M. · Updated October 17, 2026 · How we calculate

A laptop barely dents a power station. Its battery holds roughly 50–100 Wh, and the charger’s rating (60 W, 70 W, 140 W) is the most it can pull, not what it usually does. We plan on about 50 W for a laptop in use on its AC adapter, which a 1,000 Wh station keeps going for about 17 hours.

Charge it from the station’s USB-C port instead and the energy skips a conversion: no inverter turning battery power into 120 V, no power brick turning it back. For any laptop that charges over USB-C, that’s the better way.

Running50 Wtypical range 20–100 W

Starting (surge)50 Wno startup surge

Average50 Wwhile on

Per day0.3 kWhat 6 h/day

Calculate with your model Find the right size

Runtime by power station

Nonstop runtime for one laptop at 50 W average, with 85% inverter efficiency. Models that can't supply its running or starting power are listed separately below.

How long each power station runs a laptop: longest 10
Power station	Battery	Runtime
Jackery Explorer 5000 Plus	5,040 Wh	3.6 days
EcoFlow DELTA Pro 3	4,096 Wh	2.9 days
Goal Zero Yeti PRO 4000	3,994 Wh	2.8 days
Anker SOLIX F3800	3,840 Wh	2.7 days
Anker SOLIX F3800 Plus	3,840 Wh	2.7 days
EcoFlow DELTA Pro Older	3,600 Wh	2.6 days
Anker SOLIX F3000	3,072 Wh	2.2 days
BLUETTI Elite 300	3,014 Wh	2.1 days
BLUETTI Apex 300	2,765 Wh	47 hours
BLUETTI Elite 200 V2	2,074 Wh	35 hours

Show the other 44 models that can run it

How long each power station runs a laptop: the rest
Power station	Battery	Runtime
EcoFlow DELTA 3 Max	2,048 Wh	35 hours
EcoFlow DELTA 3 Max Plus	2,048 Wh	35 hours
EcoFlow DELTA 2 Max Older	2,048 Wh	35 hours
BLUETTI AC200L	2,048 Wh	35 hours
BLUETTI AC200MAX Older	2,048 Wh	35 hours
Anker SOLIX C2000 Gen 2	2,048 Wh	35 hours
Anker SOLIX F2000 (767) Older	2,048 Wh	35 hours
DJI Power 2000	2,048 Wh	35 hours
Jackery Explorer 2000 v2	2,042 Wh	35 hours
Jackery Explorer 2000 Plus Older	2,042 Wh	35 hours
BLUETTI AC200P Older	2,000 Wh	34 hours
Jackery Explorer 1500 v2	1,536 Wh	26 hours
Jackery Explorer 1500 Ultra	1,536 Wh	26 hours
Goal Zero Yeti 1500X Older	1,516 Wh	26 hours
Goal Zero Yeti 1500	1,505 Wh	26 hours
Jackery Explorer 1000 Plus	1,264 Wh	21 hours
Anker SOLIX F1200 (757) Older	1,229 Wh	21 hours
BLUETTI AC180	1,152 Wh	20 hours
Jackery Explorer 1000 v2	1,070 Wh	18 hours
Anker SOLIX C1000	1,056 Wh	18 hours
EcoFlow DELTA 3	1,024 Wh	17 hours
EcoFlow DELTA 3 Plus	1,024 Wh	17 hours
EcoFlow DELTA 2 Older	1,024 Wh	17 hours
BLUETTI Elite 100 V2	1,024 Wh	17 hours
Anker SOLIX C1000 Gen 2	1,024 Wh	17 hours
DJI Power 1000	1,024 Wh	17 hours
Jackery Explorer 1000 Pro Older	1,002 Wh	17 hours
Jackery Explorer 1000 Older	1,002 Wh	17 hours
Goal Zero Yeti 1000	998 Wh	17 hours
EcoFlow RIVER 2 Pro Older	768 Wh	13 hours
Anker SOLIX C800 Plus	768 Wh	13 hours
BLUETTI EB70S Older	716 Wh	12 hours
Goal Zero Yeti 700	677 Wh	12 hours
Jackery Explorer 500 Older	518 Wh	8.8 hours
EcoFlow RIVER 2 Max Older	512 Wh	8.7 hours
DJI Power 500	512 Wh	8.7 hours
Jackery Explorer 300	293 Wh	5 hours
Jackery Explorer 300 v2	288 Wh	4.9 hours
Anker SOLIX C300	288 Wh	4.9 hours
EcoFlow RIVER 3 Plus	286 Wh	4.9 hours
BLUETTI EB3A Older	269 Wh	4.6 hours
Jackery Explorer 240 v2	256 Wh	4.4 hours
EcoFlow RIVER 3	245 Wh	4.2 hours
Jackery Explorer 240 Older	240 Wh	4.1 hours

We may earn a commission if you buy through these links. It never changes our numbers, and every model in our database is included whether or not it pays us. Learn more.

Battery size vs charger rating

The battery size, not the charger, tells you how many refills you get. Here are some current laptops, with what their makers publish:

Laptop battery sizes and charges per 1,000 Wh
Laptop	Battery	Charger in the box	Full charges from 1,000 Wh
MacBook Air 13-inch (M5)	53.8 Wh	40 W (60 W max)	about 17
Dell XPS 13 (9350)	55 Wh	60 W USB-C	about 16
Lenovo ThinkPad X1 Carbon Gen 13	57 Wh	65 W USB-C	about 16
MacBook Air 15-inch (M5)	66.5 Wh	40 W (60 W max)	about 14
MacBook Pro 14-inch (M5)	72.4 Wh	70 W	about 12
MacBook Pro 16-inch (M5 Pro)	99.6 Wh	140 W	about 9
Lenovo Legion Pro 7 (gaming)	80 or 99.9 Wh	400 W barrel plug	about 9 (99.9 Wh)

“Full charges” is our division of 1,000 Wh × 90% (our figure for USB-C ports) by the battery size, from empty to full with the laptop off. It’s an upper bound: the laptop’s own charging losses aren’t published, and using it while it charges takes more.

USB-C or the AC outlet?

USB-C Power Delivery used to top out at 100 W, using 20 V at 5 A. The USB Implementers Forum’s 2021 update added 28 V, 36 V and 48 V levels for 140 W, 180 W and 240 W. Most power stations in our database offer up to 100 W per USB-C port; a smaller group offers 140 W. That covers most laptops:

Apple says the MacBook Air fast-charges from a 70 W or higher USB PD source, and the 14-inch MacBook Pro from 96 W. A 100 W port clears both.
Dell says the XPS 13 charges at 27–60 W, so even a modest port works, just more slowly at the low end.
The 16-inch MacBook Pro ships with a 140 W adapter and needs 140 W or more to fast-charge, so only a 140 W port matches it.
Gaming laptops are different. Lenovo’s Legion Pro 7 ships with a 400 W adapter; its USB-C port supports 95–100 W of USB PD. Run it from the AC outlet with its own brick.

Our calculators assume 90% of the battery reaches USB and 12 V ports and 85% reaches the AC outlets. Going through the AC outlet also adds the losses of the laptop’s own power brick, which we don’t count, so the real gap is a bit wider than that.

What a laptop really draws

Charger ratings are maximums. ENERGY STAR tests every certified laptop sitting idle, and the numbers are small. We took the 1,157 notebooks in its current list: the median uses 4.9 W at short idle and 0.6 W asleep.

Laptop idle power from ENERGY STAR
Laptop (ENERGY STAR test)	Short idle	On 1,000 Wh at that rate
MacBook Air 13-inch (M5)	3.5–3.7 W	9.8 days
Median of 1,157 notebooks	4.9 W	7.2 days
Dell XPS 13 (9350)	5.2 W	6.8 days
Lenovo ThinkPad X1 Carbon Gen 13	6.2 W	5.7 days
MacBook Pro 16-inch (M5 Max)	7.4 W	4.8 days

Our query of ENERGY STAR’s certified-computers data (version 9.0), October 2026; runtimes use 85%, as if on AC. Idle is the floor. Video calls, compiling, gaming or a bright screen take much more, which is why we plan on 50 W for a laptop in use.

Making the battery go further

Check the cable as well as the port. USB-IF says 100 W charging relies on USB-C cables rated at 5 A, and its 2021 update set separate cable requirements for 240 W.
Turn the station’s AC outlets off when nothing needs them. The inverter uses power just by being on.
Lower the screen brightness and close what you aren’t using; the gap between idle and busy is several times the idle figure.
Add your router and phones in the runtime calculator to see a full work-from-home day.

Questions

How many times can a 1,000 Wh power station charge a laptop?

Around 9 to 17 full charges for laptops with 50–100 Wh batteries, from the USB-C port, before the laptop’s own charging losses. Using the laptop while it charges, or charging through the AC outlet, gives fewer.

Is it better to charge a laptop from USB-C or AC?

USB-C, if the port supplies enough power. It skips the inverter and the laptop’s power brick. Most stations offer 100 W USB-C ports, enough to fast-charge a MacBook Air or a 14-inch MacBook Pro.

Can a power station run a gaming laptop?

Yes, from the AC outlet. Gaming laptops like Lenovo’s Legion Pro 7 ship with chargers up to 400 W, far beyond a USB-C port. At that adapter’s full 400 W, a 1,000 Wh station would last about 2 hours; most use draws less.

How many watts does a laptop use?

Far less than the charger suggests most of the time. ENERGY STAR’s median certified notebook uses 4.9 W at idle; we plan on 50 W for a laptop in active use.

Sources

Wattage figures are typical values from the sources below. Your appliance may differ, so check its label or measure it with a plug-in watt meter.