Power banksSections
Family comparison · 3 exact US models
Anker Prime power banks compared
All three Prime models offer the same 140W ceiling for one USB-C laptop. Choose between them by capacity, carrying weight and the power you need to share across devices.
BatteryRank comparison
Which Prime fits your kit?
All three Prime models reach 140W on one USB-C output, so no Prime raises the one-laptop ceiling above the others. Choose the 27K for the largest capacity label, the 26K for the highest 300W shared total, or the 20K for the lowest 510g carrying weight.
Anker A1340 specifications · checked 2026-10-07Anker A110A specifications · checked 2026-10-07Anker A110B specifications · checked 2026-10-07
Manufacturer ratings · dated source on each value
What the specifications say
Single-port output shows the ceiling for one wired connection. Combined output describes power shared across ports. They answer different questions.
| Measure | Anker Prime Power Bank (27K, 250W) | Anker Prime Power Bank (26K, 300W) | Anker Prime Power Bank (20K, 220W) |
|---|---|---|---|
| Manufacturer-rated capacityOEM capacity rating | 27650 mAh. Show sourceclaimed sourceanker.comchecked 2026-10-07 · OEM capacity ratinghttps://www.anker.com/products/a1340-250w-power-bank | 26250 mAh. Show sourceclaimed sourceanker.comchecked 2026-10-07 · OEM capacity ratinghttps://www.anker.com/products/a110a-anker-prime-26k-300w-power-bank | 20100 mAh. Show sourceclaimed sourceanker.comchecked 2026-10-07 · OEM capacity ratinghttps://www.anker.com/products/a110b-anker-prime-20k-220w-power-bank |
| Strongest single USB-C outputMaximum output from one wired USB-C port | 140 W. Show sourceclaimed sourceanker.comchecked 2026-10-07 · Maximum output from one wired USB-C port · Maximum from one standard USB-C output port. 250W is the combined output ceiling.https://www.anker.com/products/a1340-250w-power-bank | 140 W. Show sourceclaimed sourceanker.comchecked 2026-10-07 · Maximum output from one wired USB-C port · Maximum output from one USB-C port. The 300W rating is shared across three output ports.https://www.anker.com/products/a110a-anker-prime-26k-300w-power-bank | 140 W. Show sourceclaimed sourceanker.comchecked 2026-10-07 · Maximum output from one wired USB-C port · Maximum output from one USB-C port. 220W is the combined output across its three ports.https://www.anker.com/products/a110b-anker-prime-20k-220w-power-bank |
| Single USB-C inputStrongest standard USB-C input; proprietary dock excluded | 140 W. Show sourceclaimed sourceanker.comchecked 2026-10-07 · Strongest standard USB-C input; proprietary dock excluded · Strongest single ordinary USB-C input. Proprietary Pogo Pin charging and combined USB-C inputs are excluded.https://www.anker.com/products/a1340-250w-power-bank | 140 W. Show sourceclaimed sourceanker.comchecked 2026-10-07 · Strongest standard USB-C input; proprietary dock excluded · Strongest standard single USB-C input. The 150W Anker Protocol mode is excluded. 250W requires both USB-C inputs.https://www.anker.com/products/a110a-anker-prime-26k-300w-power-bank | 100 W. Show sourceclaimed sourceanker.comchecked 2026-10-07 · Strongest standard USB-C input; proprietary dock excluded · Maximum through one USB-C input. The charging-base input is a separate connection.https://www.anker.com/products/a110b-anker-prime-20k-220w-power-bank |
| Manufacturer-listed weightOEM-listed product weight | 665 g. Show sourceclaimed sourceanker.comchecked 2026-10-07 · OEM-listed product weighthttps://www.anker.com/products/a1340-250w-power-bank | 600 g. Show sourceclaimed sourceanker.comchecked 2026-10-07 · OEM-listed product weighthttps://www.anker.com/products/a110a-anker-prime-26k-300w-power-bank | 510 g. Show sourceclaimed sourceanker.comchecked 2026-10-07 · OEM-listed product weighthttps://www.anker.com/products/a110b-anker-prime-20k-220w-power-bank |
| Explicit OEM-rated energyShown only when the manufacturer publishes watt-hours | 99.54 Wh. Show sourceclaimed sourceanker.comchecked 2026-10-07 · Shown only when the manufacturer publishes watt-hours · Explicit OEM rating for model A1340.https://www.anker.com/nz/products/a1340-250w-power-bank?variant=45193914908843 | 99.75 Wh. Show sourceclaimed sourceservice.anker.comchecked 2026-10-07 · Shown only when the manufacturer publishes watt-hourshttps://service.anker.com/product-description/a08J1000000YsC7IAK?recordId=a08J1000000YsC7IAK | Not sourced |
| Combined output ceilingMulti-port total; distinct from one-port output | 250 W. Show sourceclaimed sourceanker.comchecked 2026-10-07 · Multi-port total; distinct from one-port outputhttps://www.anker.com/products/a1340-250w-power-bank | 300 W. Show sourceclaimed sourceanker.comchecked 2026-10-07 · Multi-port total; distinct from one-port outputhttps://www.anker.com/products/a110a-anker-prime-26k-300w-power-bank | 220 W. Show sourceclaimed sourceanker.comchecked 2026-10-07 · Multi-port total; distinct from one-port outputhttps://www.anker.com/products/a110b-anker-prime-20k-220w-power-bank |
Unknown readings stay labelled “Not sourced.” Every displayed rating opens its dated source. Manufacturer claims are not independent output or runtime measurements.
Before you choose
The details that change the decision
Check 01
One laptop sees the same ceiling on every Prime
Each Prime model rates one USB-C output at up to 140W. The 300W, 250W and 220W headlines are combined totals across ports, so a single laptop cannot draw them through one connection. Check the laptop’s accepted USB-C profile first.
Check 02
Capacity has a carrying cost
The 27K lists 27,650mAh at 665g, the 26K lists 26,250mAh at 600g, and the 20K lists 20,100mAh at 510g. Only the 27K and 26K publish an explicit watt-hour rating in our sources, so we leave the 20K’s Wh unknown rather than assume equal cell voltage.
Check 03
Refill equipment is part of the choice
The 27K and 26K accept up to 140W through one standard USB-C input. The 20K accepts 100W. The fastest advertised refill figures need both USB-C inputs or a proprietary charging base, so compare the charger and cables you actually own.
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Family questions
Frequently asked questions
Which Prime has the highest single-port output?
All three have the same published single-port ceiling of 140W. That does not establish identical charging speed for every laptop. Differences appear when several devices share the pack or when recharging the bank.
What does the wattage in the Prime name mean?
It is the combined multi-port output ceiling: 300W on the 26K, 250W on the 27K and 220W on the 20K. Treat it as a charging-desk total, not a per-port rating.
Which Prime is lightest to carry?
The 20K lists 510g, against 600g for the 26K and 665g for the 27K. Those are manufacturer-listed pack weights before cables and charging accessories.
Check the rest of your charging setup
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