Summary of manufacturer specs and independent lab results for Anker’s 737 (PowerCore 24K): up to 140W USB‑C output, 24,000mAh capacity, a smart display and clear travel trade-offs.
Method: TechGearsGuide did not physically test this unit. This assessment combines official documentation with attributed independent test results.
Quick verdict
The Anker 737 (PowerCore 24K) is a strong choice for power users who need high-rate USB‑C laptop charging on the go — it delivers up to 140W and fast recharge times in independent tests — but its 630 g weight, size and lack of bundled PD 3.1 cable mean travellers should weigh portability and accessories before buying.
Best for
- High-performance laptop users who need portable high‑watt charging
- Professionals and travellers carrying multiple devices
- Users who value a built‑in digital display for monitoring power
Avoid if
- You prioritise ultra-light or pocketable power banks
- You expect a bundled PD 3.1 cable or charger in the box
- You need an uninterruptible-power-supply (UPS) behaviour from pass-through charging
Pros
- Manufacturer-rated up to 140W total output for fast laptop charging (with PD 3.1 cable and device support)
- High usable energy and good efficiency in independent measurements
- Smart digital display that reports power draw and remaining capacity
- Bi-directional (two‑way) charging — can act as input and output
Cons
- Relatively heavy and larger than travel‑focused banks (630 g)
- No PD 3.1 cable or AC charger included in the retail package
- Gen 1 units noted by reviewers lack some PD voltage options (12V) that affect certain devices
Product details
- Brand
- Anker
- Model
- A1289011
Key specifications
| Display | Smart digital display (shows power draw and other stats) |
|---|---|
| Number of usb a ports | 1 |
| Number of usb c ports | 2 |
| Weight g product page | 630 g |
| Total capacity mah | 24000 mAh |
| Number of outputs | 3 |
| Pd version guidance | PD 3.1 required to reach 140W (per product FAQ) |
| Thermal management | ActiveShield™ 2.0 |
| Total output max | 140 W |
| Usb a output spec | 5V ⎓ 3A / 9V ⎓ 2A / 12V ⎓ 1.5A |
Category scores
Manufacturer lists a 140W maximum total output and PD 3.1 guidance; independent testing shows fast recharge and sustained high‑power delivery, with TechRadar measuring sub‑1‑hour full recharge at 140W and confirmed high output behaviour.[54][55][56]
Anker states 24,000 mAh, and independent tests report usable energy between ~73–77 Wh depending on power draw, indicating good real‑world usable capacity after conversion losses.[54][56][58]
Three outputs (2× USB‑C, 1× USB‑A) and per‑port PD specs support laptops and phones, but manufacturer guidance requires PD 3.1 cable/device for 140W and reviewers note Gen 1 units miss a 12V PD option some devices expect.[54][55][56]
The product is relatively heavy (630 g) and dimensions are larger than compact banks, though it includes a smart display and solid build; this makes it less suited for ultra-light carry but acceptable for checked or carry‑on luggage.[54][56][58]
Measured usable energy by output power (TechRadar)
Wh recovered/usable at different load levels (independent measurements)
Design and portability
Anker lists the 737’s dimensions as 155.7 × 54.6 × 49.5 mm and a product weight of 630 g, making it larger and heavier than compact daily carry power banks; the unit includes a Smart Digital Display on the shell for monitoring. That size is a trade‑off: useful for powering laptops but less convenient for very light travel or pocket carry.[54]
Capacity and usable runtime
Anker states a 24,000 mAh capacity. Independent measurements show usable energy after conversion varies with load — TechRadar recorded usable energy between about 73–77 Wh across tested power levels, which aligns with reviewers’ reporting of practical run times for phones and laptops given conversion efficiency.[54][56][58]
Charging performance
The manufacturer rates a maximum total output of 140W; Anker notes a PD 3.1‑capable cable and PD 3.1 device are required to reach that figure. TechRadar measured fast real‑world performance, reporting a full recharge in under an hour at 140W and about 1.5 hours at 100W, and confirmed high output capability in lab testing.[54][55][56]
Ports and compatibility
Anker documents three output ports (2× USB‑C and 1× USB‑A) with detailed per‑port voltage/current specs; per the support pages the USB‑C ports support the voltage/current combinations that enable up to 140W. Reviewers caution that Gen 1 units examined lacked a 12V PD output option that some devices expect, so compatibility with certain legacy PD profiles can vary by unit generation.[54][55][56]
Safety and thermal behavior
Anker lists ActiveShield™ 2.0 as the product’s thermal/management feature. Independent efficiency measurements at high loads show sustained usable energy rather than large efficiency loss, suggesting the unit’s thermal design keeps performance stable under heavy charging and discharging, though long sessions at the highest power should follow manufacturer safety guidance.[54][56]
Features and usability
The 737 includes a Smart Digital Display that reviewers report shows real‑time power draw, remaining capacity and estimated charge/discharge time as well as battery health info. The unit supports two‑way (bi‑directional) charging, but independent coverage and product packaging notes indicate the retail box does not include a PD 3.1 cable or AC charger, so buyers must budget for compatible accessories to reach the top spec.[54][55][56][57][58]
Buyer considerations
For users who need portable 140W laptop charging, the combination of high usable energy, fast recharge and a monitoring display creates a compelling package. Check the current retailer offer and confirm applicable local warranty and return terms before purchase.[54][56][57]
Final verdict
If you regularly need high‑watt USB‑C charging for a laptop or want a single portable unit to charge multiple devices quickly, the Anker 737 (PowerCore 24K) is a realistic, well‑engineered option: manufacturer specs support 140W output (with PD 3.1 gear) and independent testing confirms fast recharge and strong usable energy. If you prioritise ultra‑light carry, expect bundled cables, or need specific older PD voltages, consider those trade‑offs before buying.[54][55][56][57]
Methodology and evidence
This review summarises manufacturer specifications from Anker and independent testing and coverage from TechRadar, StorageReview and The Verge. Independent measurements (efficiency and recharge times) are attributed to those reviewers; TechGearsGuide did not perform physical testing. Value assessment is provisional because current UAE retail prices from at least two independent sellers were not provided.
- Anker — Product page: Anker 737 Power Bank (PowerCore 24K) (A1289) (official manufacturer evidence; accessed August 6, 2026)
- Anker Support — A1289 product support & FAQs (Service site pages for Anker 737 / PowerCore 24K) (official manufacturer evidence; accessed August 6, 2026)
- TechRadar — Anker 737 power bank review: The 140W output is perfect for high-performance laptops (independent review/testing; accessed August 6, 2026)
- The Verge — Anker’s PowerCore 24K can charge laptops at up to 140W (announcement/coverage) (independent review/testing; accessed August 6, 2026)
- StorageReview — Anker 737 Power Bank review (PowerCore 24K) (independent review/testing; accessed August 6, 2026)
This research-verified review is maintained by TechGearsGuide and updated when material evidence changes. The editorial score does not change with short-term retailer promotions.
