Anker Prime 27,650mAh Power Bank (250W): problems, parts and running costs

Checked: 2026-10-20

Summary

The recurring owner complaint is confusing charging behavior, not hardware failure: the bank can appear to stop at 80% or keep charging past a displayed 100% depending on the cable and charger. There is no consumable and no subscription, so yearly running cost is essentially zero apart from optional accessories. It is a strong buy at $130 or less for anyone who needs 140W laptop charging, and weak value near the $179.99 list price for phone-only users.

Common problems and fixes

Charging stops at 80% or continues past the displayed 100% — the most reported owner issue. Reddit owners describe the bank appearing to stop at 80% even when the display suggests otherwise, and silently continuing after showing 100%. One owner found topping it off required a 100W USB-C cable and an Anker Prime 100W charger, while other cable and charger combinations did not fill it; an Anker Prime dock would not charge past 80%. The fix is a 100W USB-C cable with a high-power charger. This is not an established defect rate, so warranty coverage is not established. [11]
170W self-recharge needs both USB-C ports and a high-power charger — Anker documents that the dual-port 170W input cannot be sustained continuously and typically reaches 170W only above about 55% charge. Use both USB-C ports with a high-power charger, and treat the 43-minute single-port 140W and 37-minute dual-port 170W figures as different input modes. [1][2]
Fast-charging a 16-inch MacBook Pro at 140W needs Apple’s own cable — the included 60cm USB-C to USB-C cable is rated 140W, but Apple restricts fast charge on that laptop to its USB-C to MagSafe 3 cable. [6]
Heavy and large for a pocket — about 665g and 161.7mm tall, so it is a bag item rather than a pocket item. That is the size of a 27,650mAh pack, with no fix. [1][6]
The 250W is a shared total, not a per-port number — one USB-C port maxes at 140W; with all three ports active the split is 140W + 92W + 18W. [5][6][9]

Parts and consumables

100W charging base (pogo-pin) — no part number given in the research; $69.99 (Macworld) or described as a $50 add-on in Android Central’s January 2025 review. Sold separately, not bundled, and carries its own terms apart from the bank’s 24-month warranty. [3][5][6]
100W USB-C cable — no part number; a 100W USB-C cable and a high-power charger are what owners found necessary to top the bank off. [11]

The battery is not user-replaceable and no repair program was found. [1][7]

Yearly running cost

Essentially zero. There is no subscription and no consumable to replace; the only recurring spend is optional accessories such as the 100W charging base at $69.99 (Macworld) or $50 (Android Central, January 2025). Owners report the bank drawing roughly 102Wh from empty for a full charge, and the electricity for that is a fraction of a cent. Computed as optional accessories plus negligible charging electricity; no other recurring costs are reported. [5][6][11]

When it is a good buy

Price anchors (other stores and reviews):

Android Central review, January 2025: $149 for the black model, $153 for the gold-accented variant. [5]
Macworld price when reviewed: $179.99. [6]
Battery Skills: $179.99; The Great Reviewer round-up: $149.99. [8][14]
Anker NZ: NZ$299.95. [3][4]

At $130 or less this bank is a strong buy for anyone who needs 140W laptop charging or 27,650mAh with 250W multi-device output. From $131 to $160 it is fair value. From $161 to $190 it is weak to fair, since $179.99 is the common street price. Above $190 it is hard to justify unless 140W charging plus 27,650mAh in one device is a hard requirement. For phone-only charging, the smaller Anker Prime 20,000mAh (A1336, 200W) is the better choice, and the Prime Fusion 9.6K suits lighter loads. [5][6][10][15]