What size power station do I need to run a Phone charger?

To run a Phone charger (about 10 running watts) for 10 hours, plan on a station with at least 150 watt-hours of capacity and 10W continuous / 10W surge output. Adjust for your real runtime.

How long will a power station run a Phone charger?

A Compact (≈300Wh) station (300Wh) runs a Phone charger for roughly ~23 h on a full charge.

SizingPlate

Power stations › Phone charger

What size power station to run a Phone charger?

Typical draw: 10W running. Sized below for a 10-hour run — drag the slider for your real runtime.

POWER PLATE1 LOAD · 10 H RUNTIME

Continuous draw

10 W

Startup surge

10 W

Energy for 10 h

118 Wh

Buy at least

150 Wh

Look for ≥150Wh capacity, ~10W continuous / 10W surge or better.

Right size: Compact (≈300Wh) · 300W

Typical price $180-300 · e.g. EcoFlow River 2, Bluetti EB3A, Jackery Explorer 300 Plus

Phones, laptops, a CPAP, lights, and a router — a night of small electronics and device charging. Too small for any heating element or compressor; treat it as a big, silent battery for electronics.

Runs this load ~23 h on a full charge.

See current prices on Amazon

One size up: Small (≈600Wh) · 800W

Typical price $350-550 · e.g. EcoFlow River 2 Pro, Bluetti EB70, Jackery Explorer 600 Plus

Everything above, plus short runs of a mini fridge, a fan, or a TV; day trips and light backup. Handles one small compressor at a time, but resistive heat (kettles, space heaters) drains it fast.

Runs this load ~1.9 days on a full charge.

See current prices on Amazon

Comparing against fuel? See what size generator runs a Phone charger.

Adjust your loadout and runtime

Real setups aren't one appliance. Add loads and set your runtime below — your Phone charger is pre-checked.

POWER PLATE1 LOAD · 10 H RUNTIME

Continuous draw

10 W

Startup surge

10 W

Energy for 10 h

118 Wh

Buy at least

150 Wh

Look for ≥150Wh capacity, ~10W continuous / 10W surge or better.

Capacity includes inverter loss (~15%) and a usable-charge margin, so the station isn't run flat. A solar panel or vehicle charge extends runtime past this number.

How long do you need to run it? 10 h

Kitchen Refrigerator (full-size) 300W run / 1500W start Mini fridge 90W run / 700W start Chest freezer 250W run / 1200W start Microwave (1000W) 1400W run Electric range (one burner) 1500W run Coffee maker (drip) 900W run Toaster 1100W run Electric kettle 1400W run Dishwasher 1300W run / 1500W start Instant Pot / multicooker 1000W run

Heating & cooling Window AC (5,000 BTU) 500W run / 1500W start Window AC (8,000 BTU) 800W run / 2200W start Window AC (12,000 BTU) 1100W run / 3000W start Central AC (3-ton) 3500W run / 8500W start Space heater (1500W) 1500W run Furnace blower fan (gas furnace) 600W run / 1600W start Heat pump (2-ton) 2500W run / 6000W start Box fan 100W run / 150W start Ceiling fan 75W run / 100W start

Pumps & well Sump pump (1/3 HP) 800W run / 1500W start Sump pump (1/2 HP) 1050W run / 2200W start Well pump (1/2 HP) 1000W run / 2100W start Well pump (1 HP) 2000W run / 4000W start Sewage ejector pump (1/2 HP) 1000W run / 2200W start

Electronics TV (55" LED) 80W run Wi-Fi router + modem 15W run Laptop 65W run Desktop PC + monitor 350W run / 400W start Phone charger 10W run Starlink dish + router 75W run / 100W start

Medical & safety CPAP machine 60W run Oxygen concentrator 350W run / 600W start

Lighting LED lights (per room) 30W run

Laundry Washing machine 700W run / 1600W start Clothes dryer (electric) 5000W run / 6000W start Clothes dryer (gas) 700W run / 1800W start

Household Garage door opener (1/2 HP) 550W run / 1200W start Water heater (electric tank) 4500W run EV charging (Level 1, 120V) 1400W run

Tools & outdoor Circular saw 1400W run / 2300W start Air compressor (1 HP) 1500W run / 3000W start Welder (140A MIG) 3500W run / 4000W start

RV & camping RV air conditioner (13,500 BTU) 1300W run / 2900W start RV converter/charger 500W run Electric griddle 1200W run Slow cooker 250W run

Power stations that fit

Right size: Compact (≈300Wh) · 300W

Typical price $180-300 · e.g. EcoFlow River 2, Bluetti EB3A, Jackery Explorer 300 Plus

Phones, laptops, a CPAP, lights, and a router — a night of small electronics and device charging. Too small for any heating element or compressor; treat it as a big, silent battery for electronics.

Runs this load ~23 h on a full charge.

See current prices on Amazon

One size up: Small (≈600Wh) · 800W

Typical price $350-550 · e.g. EcoFlow River 2 Pro, Bluetti EB70, Jackery Explorer 600 Plus

Everything above, plus short runs of a mini fridge, a fan, or a TV; day trips and light backup. Handles one small compressor at a time, but resistive heat (kettles, space heaters) drains it fast.

Runs this load ~1.9 days on a full charge.

See current prices on Amazon

This site earns commissions from qualifying purchases made through links to Amazon and other retailers, at no extra cost to you. Wattage figures are typical estimates — actual draw varies by model. Always verify against your appliance's nameplate, and consult a licensed electrician for any panel or hardwired connections.