Anker · United States · laptop
Exact model: A1340 · Revision: US A1340 retail model; charging base is a separate accessory
Product identity · checked 2026-10-07
Manufacturer product image · source
Anker’s 27,650mAh Prime pairs up to 140W on one USB-C port with 250W shared output across its ports. It also publishes a 99.54Wh rating. The single-input comparison uses one ordinary USB-C port and excludes proprietary and combined-input modes.
View manufacturer product pageAvailability checked 2026-10-07. Stock can change.
Manufacturer product image · source
BatteryRank review
A high-capacity choice when one laptop may use up to 140W and several devices may share the pack. The 250W headline describes combined output; it is not a single-device rating.
Ratings below are manufacturer-claimed. Open a reading to see its source and check date; derived comparisons are identified separately.
Use and carrying fit
The bank has two USB-C ports and one USB-A port, with a 140W ceiling on one USB-C output and 250W total output. Match the laptop’s supported USB-C charging profile and account for shared power when other ports are active.
What changes the choice
One USB-C port reaches up to 140W; the 250W rating is shared across the output ports. For a single laptop, use the port-level figure.
The single standard USB-C input is rated up to 140W. Anker also describes combined USB-C input and proprietary Pogo Pin charging; neither changes the single-port USB-C input metric shown here.
Before connecting devices
A port’s published maximum and the combined multi-port limit are separate ratings. A device can draw less than the bank’s maximum based on its own requirements and the negotiated charging profile.
A standard USB-C input is specified up to 140W. Reaching the listed rate depends on the charger, cable and negotiated device profile.
Anker publishes 99.54Wh for A1340 on its official product page. We use that explicit rating and do not infer watt-hours from the mAh label.
USB-C 1 · USB-C
OEM profiles: 5V⎓3A / 9V⎓3A / 12V⎓3A / 15V⎓3A / 20V⎓5A / 28V⎓5A
Anker Prime Power Bank (27K, 250W), US product specifications · checked 2026-10-07USB-C 2 · USB-C
OEM profiles: 5V⎓3A / 9V⎓3A / 12V⎓3A / 15V⎓3A / 20V⎓5A / 28V⎓5A
Anker Prime Power Bank (27K, 250W), US product specifications · checked 2026-10-07Manufacturer documentation
Manufacturer claims link to the dated source used for this exact revision. Watt-hours appear only when the OEM states them explicitly; we do not infer energy from milliamp-hours.
Exact-model questions
No. The individual USB-C port maximum is 140W. Anker’s 250W figure is total output across multiple ports.
It counts up to 140W through one ordinary USB-C input. A proprietary Pogo Pin route or a combined multi-port input is a different charging mode and is excluded.
Evidence record
We use manufacturer documentation for the product identity and claims shown on this review.
Review updated 2026-10-07. Ratings are manufacturer claims tied to the cited documents.