USB-C power banks / Comparison

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Portable USB battery packs, not AC power stations. Output maxima are not runtime or recharge-time measurements. A listed capacity does not establish travel permission or product safety.

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Compare the details	RAPID Pro Power Bank 27,650mAh 300W (US package)	Prime 27K A1340 (US package)
Community reviews	No community reviews yet. Purchase packages of the same model share one community score. Read all reviews Write a review	No community reviews yet. Purchase packages of the same model share one community score. Read all reviews Write a review
US purchase package	EF-RAPIDPRO27K-US; RAPID Pro Power Bank (27,650mAh, 300W, 140W Built-in Cable) only; not the RP27K-C140 charger bundle or RP27K-STATION320W desktop-charger bundle Product & sources Power bank only; the 320W Charging Station and wall chargers are separate purchases. The store banner says it does not ship to outlying areas, including Puerto Rico, Hawaii and Alaska. No checkout, stock, shipment or safety certification is established. Source · 2026-10-21 EcoFlow: RAPID Pro Power Bank 27,650mAh 300W US product page (EF-RAPIDPRO27K-US)Checked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.	A1340; Black; 27650mAh standard US package, not charging-base bundle Product & sources Check the model, supplied cable and current recall instructions. No checkout, shipment or safety certification is established. Source · 2026-10-11 Anker: A1340 Prime 27K US specificationsChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Where to buy	Select: EF-RAPIDPRO27K-US; RAPID Pro Power Bank (27,650mAh, 300W, 140W Built-in Cable) only; not the RP27K-C140 charger bundle or RP27K-STATION320W desktop-charger bundle View at EcoFlow — RAPID Pro Power Bank 27,650mAh 300W (US package); opens in a new tab The link may open several packages. Check current price and availability with the seller. Opens in a new tab.	Select: A1340; Black; 27650mAh standard US package, not charging-base bundle View at Anker — Prime 27K A1340 (US package); opens in a new tab The link may open several packages. Check current price and availability with the seller. Opens in a new tab.
External rating	Not checked yet	4.82 out of 5 from 222 ratings · Anker US store · Checked October 23, 2026.
Advertised capacity The capacity stated by the manufacturer at its battery voltage basis. Do not treat this as delivered USB capacity or a number of complete phone charges.	27650 mAh Source · 2026-10-21 EcoFlow: RAPID Pro Power Bank 27,650mAh 300W US product page (EF-RAPIDPRO27K-US)Checked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.	27650 mAh Source · 2026-10-11 Anker: A1340 Prime 27K US specificationsChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Documented stored energy A source-stated watt-hour rating for the exact model. Unknown remains unknown; this value does not establish an airline or carrier approval.	99.54 Wh Source · 2026-10-21 EcoFlow: RAPID Pro Power Bank 27,650mAh 300W US product page (EF-RAPIDPRO27K-US)Checked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.	Not verified We have not verified this value. It is not a confirmed no or zero. Check the original source or ask the manufacturer if it affects your choice. The retrieved US specification did not establish watt-hours; no foreign-package capacity is silently inherited. Source · 2026-10-11 Anker: A1340 Prime 27K US specificationsChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Maximum single USB-C output The advertised maximum through one supported USB-C output. The device and cable must support the required profile; it is not sustained power for every workload.	140 W Source · 2026-10-21 EcoFlow: RAPID Pro Power Bank 27,650mAh 300W US product page (EF-RAPIDPRO27K-US)Checked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.	140 W Source · 2026-10-11 Anker: A1340 Prime 27K US specificationsChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Maximum documented recharge input The documented input maximum with the qualifications below. Some peaks require two input ports or a particular battery level. Read the entire input workflow.	320 WThe US page states 320 W input without a port breakdown. EcoFlow's EU table for the same-named model attributes 320 W to the pogo-pin path, alone or with USB, and lists 280 W total through USB. Sources · 2026-10-21 EcoFlow: RAPID Pro Power Bank 27,650mAh 300W US product page (EF-RAPIDPRO27K-US)Checked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.EcoFlow: RAPID Pro Power Bank 27,650mAh specification, EU store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.	170 W Source · 2026-10-11 Anker: A1340 Prime 27K US specificationsChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
USB connection arrangement The supplied output connectors, including built-in cables where stated. A built-in cable is not a free socket; count the devices and connector types that you need.	Four USB-C outputs: one 60 cm retractable built-in cable and three USB-C sockets. Source · 2026-10-21 EcoFlow: RAPID Pro Power Bank 27,650mAh 300W US product page (EF-RAPIDPRO27K-US)Checked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.	Two USB-C sockets and one USB-A socket. Source · 2026-10-11 Anker: A1340 Prime 27K US specificationsChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Simultaneous-output conditions Manufacturer sharing limits and unresolved allocation details. Do not add individual port maxima or assume equal distribution between connected devices.	Up to 300 W total across the four outputs. Single-output maxima are 140 W for the built-in cable (C1) and C2, and 65 W each for C3 and C4. The page's two-, three- and four-port allocation diagrams were not available as text. Do not add the single-output maxima. Source · 2026-10-21 EcoFlow: RAPID Pro Power Bank 27,650mAh 300W US product page (EF-RAPIDPRO27K-US)Checked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.	Up to 250 W aggregate advertised; this is not 250 W from one USB-C socket. Exact simultaneous allocation still needs the relevant mode diagram. Source · 2026-10-11 Anker: A1340 Prime 27K US specificationsChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Recharge workflow The input connection and conditions behind the advertised maximum. A compatible high-power wall charger may be separate. Peak input is not a guaranteed complete-recharge time.	The 20-minute-to-80% claim uses the separate RAPID Pro 320W Charging Station. EcoFlow's EU table lists 140 W recharge through the cable or C1 and 280 W total through USB. Pass-through charging needs a charger rated 20 W or more, with input above output. Sources · 2026-10-21 EcoFlow: RAPID Pro Power Bank 27,650mAh 300W US product page (EF-RAPIDPRO27K-US)Checked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.EcoFlow: RAPID Pro Power Bank 27,650mAh specification, EU store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.	The 170 W peak needs both USB-C inputs and suitable chargers; it is not sustained and is normally reached above 55% battery. Single-port input is up to 140 W. Source · 2026-10-11 Anker: A1340 Prime 27K US specificationsChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Unit weight The source-reported weight of the pack. Check whether cables or accessories are included in the measurement.	699.4 gNet weight; the built-in cable is part of the unit. Source · 2026-10-21 EcoFlow: RAPID Pro Power Bank 27,650mAh 300W US product page (EF-RAPIDPRO27K-US)Checked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.	665 g Source · 2026-10-11 Anker: A1340 Prime 27K US specificationsChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Cables and package limits Documented supplied cables and unresolved packing-list details. Do not inherit charging bases or cable bundles from another seller selection.	A 60 cm retractable USB-C cable rated for 140 W is built in. The US page gives no box list; EcoFlow's EU box list adds a flannel bag. Charger bundles are separate options, not this selection. Sources · 2026-10-21 EcoFlow: RAPID Pro Power Bank 27,650mAh 300W US product page (EF-RAPIDPRO27K-US)Checked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.EcoFlow: RAPID Pro Power Bank 27,650mAh specification, EU store pageChecked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.	The source lists a 0.6 m USB-C to USB-C cable rated for 140 W. No charging base or wall charger is included by this selection. Source · 2026-10-11 Anker: A1340 Prime 27K US specificationsChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Important qualifications The evidence boundaries that affect this comparison. Check the exact model and current support or recall instructions before relying on the package.	EcoFlow states over 80% capacity retention after 300 cycles and says airline rules vary by region and carrier. App and Wi-Fi features are optional. These are manufacturer claims, not measured delivered energy, a carrier approval or safety certification. Source · 2026-10-21 EcoFlow: RAPID Pro Power Bank 27,650mAh 300W US product page (EF-RAPIDPRO27K-US)Checked 2026-10-21. We reviewed the official page text on the check date. Checkout options were not verified.	The retained US page says sold out; check a current exact-model seller. No stock or delivery promise is made. Source · 2026-10-11 Anker: A1340 Prime 27K US specificationsChecked 2026-10-11. We reviewed the official page text on the check date. Checkout options were not verified.
Questions to check before buying	The US page does not break the 320 W input down by port, and its multi-port allocation diagrams were not available as text. The US box contents are not listed; the flannel bag in EcoFlow's EU box list is not assumed for the US package.	Read the source notes for the exact package and operating conditions.

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