How long will a 1000Wh power station last?

A 1000Wh power station provides approximately 850 usable watt-hours. At 50W draw (laptop), expect about 17 hours. At 100W (mini fridge), about 8.5 hours. At 200W (multiple devices), about 4 hours.

How long will a portable power station run a refrigerator?

A full-size refrigerator uses about 100-150W on average. A 1000Wh power station can run it for 8-12 hours. For a full 24-hour outage, you need 2000Wh or more, or add solar panels to keep charging.

How long will a power station run a CPAP machine?

Most CPAP machines without heated humidifiers use 30-60W. A 500Wh power station provides 8-14 hours of runtime, enough for one night. With the heated humidifier turned on (80-150W), runtime drops to only 3-6 hours.

What size power station do I need for camping?

For weekend camping with phones and lights, 300-500Wh is enough. If you are running a CPAP or mini fridge, step up to 1000Wh. For extended off-grid trips, get 2000Wh or more with solar panels for recharging.

Jackery vs Bluetti which lasts longer?

At the same capacity, Jackery and Bluetti last the same amount of time. Runtime depends on battery size and power draw, not the brand. The real differences are in features, build quality, and charging speed.

How accurate is a power station runtime calculator?

Runtime calculators are typically accurate within 10-15% of real-world results. The 0.85 efficiency factor accounts for energy lost as heat during use. Actual results vary based on temperature and battery age.

Portable Power Station Calculator: How Long Will Yours Last?

⚠️ Error message

⚡ Power Station Runtime Calculator

Calculate how long your devices will run on battery power

🔋 Calculator

⚔️ Compare 1v1

1. Select Brand

2. Select Model

3. Select Appliance

⚙️ Advanced Options ▼

Include surge power (×1.4) Fridge cycling (30% duty) Eco mode (-10% draw) Solar input: Battery age:

⚠️ Warning message

Estimated Runtime

--Capacity (Wh)

--Power Draw (W)

85%Efficiency

Check Current Price →

Model A

Model B

Select Appliance to Compare

⚙️ Advanced Options ▼

Fridge cycling (30% duty) Eco mode (-10% draw) Solar input: Battery age:

The Formula Runtime Chart Appliance Watts Sizing Guide By Brand FAQ

How to Calculate Runtime

It’s simple math. Think of your power station like a gas tank:

Capacity (Wh) = how big is your tank
Watts (W) = how fast you’re using fuel
Runtime = how long before empty

The Formula

        Capacity ÷ Watts × 0.85 = Hours
    

Why × 0.85? No battery gives you 100% of its power. About 15% gets lost as heat. This is normal for all brands.

📊 Real Example

You have a Jackery 1000 v2 (1,070Wh) and want to charge your laptop (60W):

1,070 ÷ 60 × 0.85 = 15 hours

That’s almost 2 full workdays! ✓

💡 Good to know

Your laptop says “65W” on the charger, but it usually only pulls 30-40W during normal use. The rating is the maximum, not what it actually uses.

Quick Runtime Chart

Don’t want to do math? Here’s how long popular power stations last with common devices:

Power Station	Size	Mini Fridge	CPAP	Laptop	TV
Jackery 300	293Wh	5 hrs	6 hrs	4 hrs	3 hrs
Bluetti EB3A	268Wh	4.5 hrs	5.5 hrs	4 hrs	3 hrs
Jackery 500	518Wh	9 hrs	11 hrs	7 hrs	5.5 hrs
Anker C800	768Wh	13 hrs	16 hrs	11 hrs	8 hrs
Bluetti AC70	768Wh	13 hrs	16 hrs	11 hrs	8 hrs
Jackery 1000 v2	1,070Wh	18 hrs	23 hrs	15 hrs	11 hrs
Anker C1000	1,056Wh	18 hrs	22 hrs	15 hrs	11 hrs
Bluetti AC180	1,152Wh	20 hrs	24 hrs	16 hrs	12 hrs
Jackery 2000 Pro	2,160Wh	37 hrs	46 hrs	31 hrs	23 hrs
Anker F2000	2,048Wh	35 hrs	44 hrs	29 hrs	22 hrs

Based on: Mini fridge 50W, CPAP 40W (no humidifier), Laptop 60W, TV 42″ 80W

How Many Watts Does Your Stuff Use?

Not sure how many watts your devices need? Here’s a quick reference. The lower the watts, the longer your power station lasts.

Small Stuff Under 100W – Easy to power

Device	Watts	Notes
Phone charger	5-20W	Fast chargers use more
LED camping light	5-15W	Very efficient
Laptop	30-65W	Gaming laptops use more
CPAP (basic)	30-60W	Without the humidifier
Small fan	20-50W	Great for camping
TV (32-42″)	50-80W	Modern LEDs are efficient
Mini fridge	40-60W	Average over time

Medium Stuff 100-500W – Need a bigger unit

Device	Watts	Notes
Full-size fridge	100-200W	Cycles on and off
CPAP + humidifier	80-150W	2-3x more than basic!
Big TV (55″+)	100-150W	Bigger = more power
Electric blanket	100-200W	Lower once warm
PS5 / Xbox	100-200W	During gaming
Blender	300-500W	Only runs a few minutes

Power Hungry Stuff 500W+ – Drains fast

Device	Watts	Notes
Coffee maker	600-1200W	Only 5-10 min
Microwave	600-1200W	Short bursts OK
Hair dryer	1000-1800W	Most units can’t run this
Space heater	1000-1500W	Battery killer
Portable AC	1000-1500W	Not practical

⚠️ Heads up

A 1500W space heater will drain a 1000Wh power station in about 40 minutes. For heating, you need a much bigger unit or stick with a gas generator.

What Size Do You Actually Need?

Here’s the cheat sheet. Find what you want to power, and we’ll tell you what to buy:

I want to power…	Get at least	Good options
Phones & tablets only	200-300Wh	Jackery 300, Bluetti EB3A
Laptop + lights	500-700Wh	Jackery 500, Anker C800
CPAP for 1 night	500-700Wh	Bluetti AC70, Jackery 500
CPAP for a weekend	1000-1500Wh	Jackery 1000 v2, Anker C1000
Mini fridge all day	1000-1500Wh	Bluetti AC180, Jackery 1000 v2
Full fridge all day	2000Wh+	Jackery 2000 Pro, Bluetti AC240
RV / Van life	2000-3000Wh	Anker F2000, Jackery 3000 Pro
Whole house backup	5000Wh+	Jackery 5000 Plus, Anker F3800

💡 Our advice

Buy 20-30% more than you think you need. You’ll use more power than you expect, and batteries lose capacity over time. See our full buying guide for more help.

Runtime by Brand

Already know which brand you want? Here’s how long each model lasts at different power levels:

🟠 Jackery

Model	@ 50W	@ 100W	@ 200W
Explorer 300	5 hrs	2.5 hrs	1 hr
Explorer 500	9 hrs	4.5 hrs	2 hrs
Explorer 1000 v2	18 hrs	9 hrs	4.5 hrs
Explorer 2000 Pro	37 hrs	18 hrs	9 hrs
Explorer 3000 Pro	51 hrs	25 hrs	13 hrs
Explorer 5000 Plus	86 hrs	43 hrs	21 hrs

→ Jackery vs Bluetti comparison · Solar charge time calculator

🔵 Bluetti

Model	@ 50W	@ 100W	@ 200W
EB3A	4.5 hrs	2 hrs	1 hr
AC70	13 hrs	6.5 hrs	3 hrs
AC180	20 hrs	10 hrs	5 hrs
AC180T	24 hrs	12 hrs	6 hrs
Elite 200 v2	35 hrs	17 hrs	9 hrs
AC240	31 hrs	15 hrs	8 hrs

→ Is Bluetti a good brand? · Best Bluetti for home backup

🩵 Anker SOLIX

Model	@ 50W	@ 100W	@ 200W
C300X	5 hrs	2.5 hrs	1 hr
C800	13 hrs	6.5 hrs	3 hrs
C800 Plus	15 hrs	7 hrs	3.5 hrs
C1000	18 hrs	9 hrs	4.5 hrs
F2000	35 hrs	17 hrs	9 hrs
F3800	65 hrs	33 hrs	16 hrs

→ Anker SOLIX buying guide · Budget pick: 535 Powerhouse

What Else Affects Runtime?

The calculator gives you a good estimate, but real-world results can vary. Here’s why:

🌡️ Cold weather hurts

Batteries don’t like the cold. Below 50°F (10°C), you might get 10-20% less runtime. If you’re camping in winter, keep your power station inside your tent or vehicle. More tips in our RV setup guide.

🔋 Old batteries fade

After a few hundred charges, your battery won’t hold as much. Most units keep 80% capacity for 500-1000 charges. That’s still years of use for most people.

⚡ Startup spikes

Fridges and AC units need a big burst of power to start up (2-3x their normal draw). Make sure your power station can handle the surge, not just the running watts.

☀️ Solar can help

Add a solar panel and you can extend runtime indefinitely. On a sunny day, a 200W panel can add 150+ watt-hours per hour back to your battery. Check our solar angle guide to get the most from your panels.

Common Questions

Depends what you’re running! At 50W (laptop), about 17 hours. At 100W (mini fridge), about 8.5 hours. At 200W (multiple devices), about 4 hours. See our Jackery 1000 v2 review for real test results.

Yes! A full-size fridge uses about 100-150W on average. A 1000Wh power station runs it for 8-12 hours. For a full 24-hour outage, you need 2000Wh+ or add solar panels to keep charging.

Yes, power stations are great for CPAP! Without the heated humidifier, most CPAPs only use 30-60W. A 500Wh unit gives you 8-14 hours — plenty for one night. But heads up: turn on the humidifier and it jumps to 80-150W, cutting runtime in half.

For weekend camping with just phones and lights: 300-500Wh is plenty. Add a CPAP or mini fridge: step up to 1000Wh. Long trips off-grid: 2000Wh+ with solar. See our best budget picks if you’re just starting out.

At the same capacity, they last the same time — it’s just physics. The differences are in features, build quality, and charging speed. We break it all down in our Jackery vs Bluetti comparison.

Pretty good — usually within 10-15% of reality. The 0.85 efficiency factor accounts for real-world losses. You might get a bit more or less depending on temperature and battery age, but it’s a solid estimate.