๐Ÿ”Œ How to Choose the Right Size Portable Power Station

Jul 5, 2025



๐Ÿ”Œ How to Choose the Right Size Portable Power Station

With so many options out there, finding the right portable power station can feel overwhelming โ€” especially if youโ€™re not sure how much power you actually need. Weโ€™re here to make it simple. This guide breaks down the process into five quick steps so you can size your unit confidently and avoid paying for power youโ€™ll never use โ€” or worse, coming up short when it matters most.


โœ… Step 1: Make a List of What Youโ€™ll Power

Start by listing all the devices and appliances you want to run โ€” whether itโ€™s just the basics like phones and tablets, or larger gear like refrigerators and power tools. This gives you a full picture of your energy needs and helps avoid surprises later.

โšก Step 2: Add Up Your Total Wattage

Every device draws a certain amount of power. You can usually find the wattage on a label, manual, or by using an online calculator. Add up the wattage of everything you'll run at the same time โ€” then add 20% extra to account for startup surges from things like compressors, pumps, or motors.

๐Ÿ“Š Common Device Wattage Chart

Device Typical Wattage
Smartphone 2โ€“6W
Tablet 10โ€“20W
Laptop 30โ€“200W
LED Light Bulb 5โ€“15W
Router/Modem 10โ€“30W
Mini Fridge 40โ€“100W
Full-Size Refrigerator 150โ€“400W (500โ€“600W surge)
Microwave Oven 800โ€“1500W
Electric Kettle 1000โ€“1500W
TV (32"โ€“55" LED) 30โ€“120W
CPAP Machine 30โ€“60W
Coffee Maker 600โ€“1200W
Portable Fan 30โ€“70W
Small Space Heater 750โ€“1500W
Portable A/C Unit 1000โ€“1500W (up to 2000W surge)
Electric Grill or Skillet 1000โ€“1800W
Power Tool (Drill/Saw) 600โ€“1500W
Washer/Dryer Combo 1200โ€“2000W
Electric Blanket 200โ€“400W
Inflation Pump or Compressor 200โ€“1000W

Pro Tip: Always plan for the item with the highest startup surge โ€” that spike can trip your system if the output wattage isnโ€™t high enough, even if your capacity is.

๐Ÿ”‹ Step 3: Match Power Needs to Battery Capacity

Power station capacity is measured in watt-hours (Wh) โ€” that tells you how much total energy the unit can store. To estimate runtime, divide the unitโ€™s Wh rating by the watts your devices consume. For example, a 1000Wh unit running a 100W mini fridge will last about 10 hours.

๐Ÿ“ฆ Capacity Guide + EcoFlow Recommendations

Station Size Capacity (Wh) Example Uses Recommended EcoFlow Model
Small 100โ€“500Wh Phones, tablets, LED lights, Wi-Fi routers EcoFlow RIVER 2 or RIVER 2 Max
Medium 500โ€“1500Wh Laptops, TVs, CPAPs, mini fridge, coffee makers EcoFlow DELTA 2 or DELTA 2 Max
Large 1500โ€“3000Wh Microwaves, power tools, space heaters, portable A/C EcoFlow DELTA Max or DELTA Pro
Extra Large 3000Wh+ Washer/dryers, large fridges, off-grid cabins, RV life EcoFlow DELTA Pro Ultra

Note: Capacity tells you storage, but make sure your unitโ€™s output wattage is also high enough to power your most demanding device.

๐ŸŽ’ Step 4: Consider Portability and Features

Depending on where and how youโ€™ll use it, different features might matter more. Hereโ€™s what to keep an eye on:

  • Multiple AC/USB ports: Charge several devices at once
  • Solar input: Recharge in the field with solar panels
  • Pass-through charging: Use while recharging
  • Quiet fanless design: For sleeping spaces or indoors
  • Expandable batteries: Future-proof larger needs
  • Wheels or handle: Useful for heavier units
  • Pure sine wave inverter: Safe for sensitive tech


๐Ÿ“Š Step 5: Compare Models That Fit Your Needs

Once you know what power and features you need, compare your top choices. Look at:

  • Output wattage: Can it handle your biggest device?
  • Customer reviews: Any reliability concerns?
  • Warranty/support: Good coverage = peace of mind
  • Charging speed: Especially important if using solar
  • Cycle lifespan: 500+ cycles = good longevity

๐Ÿ”ง Final Thoughts + Help If You Need It

Still unsure which EcoFlow system is right for you? Thatโ€™s totally normal. Reach out โ€” weโ€™re happy to walk you through the options and make sure you get the right fit without overbuying.

Call/Text: 1-352-561-8443
Puerto Rico: 939-330-8327
Email: help@petsandyou.org

Filed in: Power Station Buying Guide, Portable Power, Backup Systems