EcoFlow 170W vs Anker Prime 20K: Power Bank Comparison
EcoFlow 170W vs Anker Prime 20K compared on output, ports, capacity, size, cable and warranty, based on the manufacturer listings.
By GadgetsDiary Editorial Team
Updated November 12, 2026
Safety: Power banks contain lithium-ion cells. Use the cables the manufacturer supplies or recommends, keep the unit away from heat, and follow the manual.
The EcoFlow 170W and the Anker Prime 20K both list 140W laptop charging, but they split their output differently: the EcoFlow offers two 140W USB-C ports, while the Prime lists a higher 220W total in a smaller body.
This comparison is based on the manufacturer listings. It is meant for buyers choosing between more capacity and a more compact, higher-total design. See more options in our Laptop Power Banks category.
At a Glance
| Feature | EcoFlow 25,000mAh 170W Dual 140W Power Bank | Anker Prime 20,100mAh 220W Power Bank |
|---|---|---|
| Capacity | 25,000mAh | 20,100mAh (72.36Wh) |
| Total output | 170W | 220W |
| Ports | 2 USB-C at 140W, 1 USB-A at 33W | 2 USB-C, 1 USB-A |
| Dimensions | 6.18 x 2.12 x 1.92 inches | 5.78 x 1.75 x 1.96 inches |
| Weight | 20 ounces | 1.12 pounds |
| Cable | Not named in the listing | 3.3 ft 240W USB-C cable |
| Display | TFT screen | Not described in the listing |
| Warranty | Not listed | 24 months |
EF ECOFLOW Laptop Power Bank
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Anker Prime Power Bank, 20,100mAh 3-Port
As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated.
Output and Charging
The EcoFlow lists two USB-C ports at 140W each with a 170W total, so two high-draw devices can connect without a lower-tier port. The Prime lists 220W total with up to 140W fast charging on a 5A cable.
The Prime has the higher total, and the EcoFlow has the clearer dual-140W layout. For a single laptop they are similar; for two demanding devices check how each listing splits power.
Capacity, Size and Weight
The EcoFlow lists 25,000mAh against 20,100mAh and 72.36Wh for the Prime. The Prime is smaller (5.78 x 1.75 x 1.96 inches) and lighter at 1.12 pounds, while the EcoFlow weighs 20 ounces.
If you need the most reserve for a long day, the EcoFlow has more. If you want the smallest body, the Prime has it.
Cables, Display and Warranty
The Prime ships with a 240W cable, a travel pouch and a welcome guide, and lists a 24-month warranty. The EcoFlow listing does not name its cable or warranty.
The EcoFlow lists a TFT display with battery level and charging details. The Prime listing does not describe a display.
Which One Should You Buy
| Choose the EcoFlow 25,000mAh 170W Dual 140W Power Bank if | Choose the Anker Prime 20,100mAh 220W Power Bank if |
|---|---|
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Final Verdict
The EcoFlow 170W suits buyers who need two 140W ports and more capacity, and the Anker Prime 20K suits those who want a compact body, a higher total and a cable in the box. Match the bank to your devices and check the airline rating on the unit before you fly. See the EcoFlow 25,000mAh 170W Dual 140W Power Bank or the Anker Prime 20,100mAh 220W Power Bank on Amazon.
Frequently Asked Questions
Which has two 140W ports?
The EcoFlow lists two USB-C ports at 140W each with a 170W total. The Prime lists up to 140W fast charging with a 220W total.
Which holds more?
The EcoFlow lists 25,000mAh and the Prime lists 20,100mAh and 72.36Wh.
Which is smaller?
The Anker Prime 20K, at 5.78 x 1.75 x 1.96 inches and 1.12 pounds by the listing.
Do both include a cable?
The Prime lists a 3.3 ft 240W cable. The EcoFlow listing does not name an included cable.
About the author
The GadgetsDiary editorial team compares portable power and charging products using manufacturer specifications and Amazon listing data. Read how we choose and rank products on our How We Review and Editorial Policy pages.