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Anker Prime 27,650mAh Power Bank (250W)

Anker Prime 27,650mAh Power Bank (250W)

By Anker · Power Banks · Audio & Electronics · More from Anker

  • 27,650mAh capacity (3,950mAh x 7 cells)
  • 250W max total output, 140W max per USB-C port
  • 2x USB-C + 1x USB-A ports
  • 140W USB-C recharge in 43 minutes
  • 99.54Wh, TSA carry-on compliant (under 100Wh)

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Problems, parts and running costs

Summary

Anker’s highest-output Prime power bank, a 27,650mAh pack rated for 250W total across two USB-C ports and one USB-A port. It is a laptop charger first and a phone charger second: expect about 665g in the bag, and know that a single USB-C port tops out at 140W.

Strengths

  • 140W on one USB-C port charges a 14-inch MacBook Pro to full and still leaves charge in the bank.
  • The 65W SuperVOOC USB-A port fast-charges OnePlus and OPPO phones, which most rivals cannot.
  • At 99.54Wh it stays under the 100Wh airline limit for carry-on.
  • The color LCD and Anker app show live watts, remaining time and a find-device sound alert.
  • 27,650mAh fits in a compact body, and a travel pouch is included.
  • Testers reported months of faultless daily use across phones, tablets and a Steam Deck.

Weaknesses

  • About 665g and 161.7mm tall, so it is a bag item rather than a pocket item.
  • The 250W is shared: one USB-C maxes at 140W, and all three ports together split 140W + 92W + 18W.
  • 170W self-recharge needs both USB-C ports and a high-power charger, and Anker says it only holds that above roughly 55% charge.
  • Fast-charging a 16-inch MacBook Pro at 140W requires Apple’s own USB-C to MagSafe 3 cable.
  • Owners report the bank can stop at 80% or keep charging past a displayed 100%, depending on the cable and charger.
  • The 100W charging base is sold separately, and Anker’s US page showed the bank sold out.

Verified specifications

ModelA1340 (part A1340011).
Capacity27,650mAh, built as 3,950mAh × 7 cells.
Energy99.54Wh, under the 100Wh airline limit and TSA carry-on compliant.
Portstwo USB-C (in and out) plus one USB-A (out).
Total output250W.
USB-C per port140W (PD 3.1, 28V/5A).
USB-A65W SuperVOOC (10V/6.5A).
Input140W on one USB-C port, up to 170W combined across both.
Charging-base input100W through the pogo pins (21.5V/4.65A).
Recharge timeabout 43 minutes at 140W single-port, about 37 minutes at 170W dual-port.
Displaycolor LCD for remaining battery and live input/output power.
AppBluetooth link to the Anker app for real-time stats, optimized charging and a find-device alert.
Trickle-charge modedouble-press the power button; it uses the USB-A port.
SafetyActiveShield 2.0 temperature monitoring.
Dimensions57 × 49.7 × 161.7 mm (2.24 × 1.96 × 6.37 in); weight 665g.
Warranty24 months.
In the box60cm 140W USB-C to USB-C cable, travel pouch, quick start guide.
Full research notes and sources

Charging laptops and phones

The 250W is a total, not a per-port figure. One USB-C port delivers up to 140W over PD 3.1, enough to charge a 14-inch M2 Pro MacBook Pro to 100% and still leave 18% in the bank, as Macworld measured. Run two USB-C ports and the split is 140W + 100W; run all three and it becomes 140W + 92W + 18W. The USB-A port carries Anker’s licensed SuperVOOC, so it can push 65W into a OnePlus or OPPO phone where most banks fall back to slow charging. Android Central reported the bank was faultless across dozens of phones, tablets and a Steam Deck over four months.

Recharging and the app

One USB-C port takes up to 140W and refills the bank in about 43 minutes; using both ports at once raises input to 170W and cuts that to about 37 minutes, though Anker says the higher rate is not sustained and usually only appears above roughly 55% charge. Macworld measured a full iPhone 15 Pro charge in about 1 hour 40 minutes with 85% left in the bank. The color LCD shows remaining battery and live input/output watts, and the Anker app adds real-time stats, optimized charging and a find-device sound alert. A trickle-charge mode for earbuds and watches starts with a double-press of the power button over the USB-A port. The included 60cm 140W USB-C to USB-C cable covers most devices, but 140W fast charging on a 16-inch MacBook Pro needs Apple’s own USB-C to MagSafe 3 cable.

Charging behaviour owners report

Owners on r/anker describe the bank stopping at 80% even when the display suggests otherwise, and silently continuing to charge after it shows 100%. One owner found that topping it off required a 100W USB-C cable and a high-power charger, and another said an Anker Prime dock would not fill it past 80%. Others report the bank drawing roughly 102Wh from empty for a full charge while showing about 82Wh at the displayed 100%. These are individual reports, not a defect rate, so treat the behaviour as a cable and charger compatibility quirk to watch rather than a fault.

Running costs and accessories

There is no subscription and no consumable to replace. The one extra worth knowing is the 100W charging base, which docks through the pogo pins; Macworld lists it at $69.99, while Android Central described it as a $50 add-on in its January 2025 review. Neither is bundled, and the base carries its own terms separate from the bank’s 24-month warranty.

Is it worth it?

This bank earns its keep only if you actually need 140W laptop charging. At $130 or less it is a strong buy for that job, since PD 3.1 at 140W, 65W SuperVOOC, a display and an app are uncommon in one pack. From $131 to $160 it is fair value. From $161 to $190 it is weak to fair: Macworld’s price when reviewed was $179.99, and Android Central’s January 2025 review listed $149 for the black model and $153 for the gold-accented one. Above $190 it is hard to justify unless 140W charging plus 27,650mAh in a single device is a requirement.

Which model this is

This page covers the Anker Prime Power Bank (27K, 250W), manufacturer model A1340, part A1340011. The Amazon listing this page follows is ASIN B0D9BZJ9JN. Do not confuse it with the smaller Anker Prime 20,000mAh (A1336, 200W) or the Prime Fusion 9.6K, which are different models.

Sources

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Independent reviews:

Owner reports:

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