Anker 737 Power Bank vs Prime 27,650mAh: One Laptop or Several Devices?

Current Verified Prices

Compare the exact 737 Power Bank A1289 and Prime 27,650mAh A1340 records below when a current verified offer is available. Include any charger or cable you need in your buying decision. A missing card means this page has no publishable verified offer for that model; it does not establish that the product is unavailable.

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Official Specifications: A1289 vs A1340

These are power banks, not the similarly named Anker 737 wall charger. Prime here means the 27,650mAh / 250W A1340, not the newer 26K / 300W model. Specifications checked on the 737 US product page and Prime A1340 US product page on October 10, 2026.

Pros and Cons at a Glance

The practical strengths below follow the two linked hands-on reviews. Limitations combine their accessory and upgrade-cost observations with the official capacity, weight and output limits. Those specification-based implications are editorial judgments, not extra measured test results. Review-era prices are excluded.

Review context: 9to5Toys' PowerCore 24K hands-on review and its Prime 27,650mAh hands-on review. Both reviewers' articles disclose affiliate links, and the PowerCore review states Anker supplied its sample. Their experiences inform the trade-offs; the official pages control the specification table.

One Laptop: Check Its Input Before Upgrading

For one device, compare the device's accepted USB-C input with each bank's per-port limit. A laptop that accepts less power will not consume the whole headline rating. Anker's 737 FAQ specifically says reaching 140W requires a PD 3.1-compatible cable and device. Prime's higher combined figure does not remove that compatibility question.

If your existing 737 already supplies the laptop's accepted input, buying Prime solely for a faster single-laptop connection is difficult to justify. A larger battery may still help you stay away from an outlet longer, but that is a capacity decision. It is separate from charging rate.

Several Devices: Shared Output Changes the Decision

A laptop plus another demanding device is the better reason to investigate Prime. Two USB-C sockets do not automatically mean both devices receive their advertised maximum simultaneously. Match the manufacturer's port-sharing diagram to the connections you will actually use, and check each device's input and cable.

Neither an aggregate wattage figure nor a socket count is a complete charging plan. Write down what will be connected together: one laptop, a tablet, a phone, or low-power accessories. Prime's extra headroom is valuable only if that combination can use it. Charging one phone at a time does not call for the same hardware as a mobile workstation.

Capacity and Portability: Plan Around the Whole Kit

Nominal mAh is useful for comparing these two batteries, but it does not tell you the exact number of laptop recharges. Device battery size, conversion losses and the workload while charging all affect the result. We do not convert either capacity into an untested promise of all-day runtime.

Check the bank, cable and recharge adapter together. A larger bank that needs a bulky adapter may be a poor fit for a light bag, while a heavier battery can make sense if it replaces the need to hunt for outlets during field work. The published reviews describe that mobile-work use case; their individual results do not guarantee the same runtime for your laptop.

Recharging: Peak Input Is Not a Constant Rate

Prime's official page distinguishes a 140W USB-C recharge from a peak 170W dual-input mode using both USB-C ports. Its note says the dual-input peak is not maintained continuously. Plan your recharge around the ports and adapter available, rather than treating a peak number as a rate throughout the session.

The optional Prime charging base adds convenience; it is not required to recharge the bank by USB-C. If you already have a suitable charger and cable, evaluate that existing setup before adding another accessory. For the 737, the manufacturer's display guidance also recommends turning its settings screen off when not needed to avoid unnecessary battery drain.

App Controls: Useful Convenience, Not More Laptop Power

Prime's app functions include charging statistics, sound-based locating and charging controls. The Bluetooth connection is local; Anker specifies use within its stated connection range. Do not interpret sound-based locating as remote tracking. The 737's display already answers basic on-device charging questions, so app control is an additional convenience rather than a prerequisite for a useful laptop power bank.

Which Should You Buy?

• One high-power laptop: start with 737. Upgrade only for a capacity, device-sharing or control need that your present setup does not meet.
• Laptop plus another demanding device: investigate Prime's sharing diagram and your devices' accepted inputs before choosing it.
• Longer stretches away from outlets: Prime's larger nominal capacity favors that goal; compare it with the extra weight in your bag.
• Portability first: measure the bag space and consider a smaller power bank if laptop-class charging is unnecessary.
• Budget first: compare current exact-model verified offers and the accessories you already own. Do not assume a permanent price gap between generations.

Continue with the Anker charger and power-bank guide, browse all buying guides, or compare the broader UGREEN and Anker charging choices.

Sources and Review Method

• Anker 737 A1289 US specifications and compatibility FAQ — official model facts checked October 10, 2026.
• Anker Prime A1340 US specifications and recharge notes — official model facts checked October 10, 2026.
• PowerCore 24K hands-on review — published October 6, 2022; review body checked October 10, 2026.
• Prime 27,650mAh hands-on review — published December 11, 2023; review body checked October 10, 2026.