Anker 737 Power Bank (PowerCore 24,000) Review 2026

When you buy a big‑battery, laptop‑capable pack, performance isn’t one headline wattage—it’s the hours of work you can do between outlets, how fast the pack refills, and whether it stays predictable with more than one device attached. Across about 20,820 owner impressions we aggregated (4.5/5 overall; quality 4.6, reliability 4.4, value 4.1, ease of use 4.5), the Anker 737 is a travel workhorse that trades pocketability for reliable 140W USB‑C PD, a clear status display, and capacity to top up a laptop and still recharge a phone several times.

In day‑to‑day travel and work, the Anker 737 Power Bank (PowerCore 24,000) consistently delivers laptop‑class USB‑C PD with enough real capacity to top up a notebook and recharge a phone repeatedly. It’s heavy and runs warm at sustained high output, but with a 5A EPR cable and a 100–140W charger, its speed and turnaround justify the cost for power‑hungry travelers.

What “performance” actually means for a travel power bank

For long‑haul trust, five things matter: usable energy (real watt‑hours, not printed mAh), single‑port power, behavior with multiple ports active, recharge speed, and thermal discipline. The 737’s 24,000 mAh and 140W USB‑C PD 3.1 matter because PD 3.1’s Extended Power Range adds a 28V profile, enabling 140W from one C port when paired with a 5A EPR cable and a device that requests it. That lets it top up a 16‑inch MacBook Pro at realistic speeds where 100W banks fall short. The smart display shows the active profile and per‑port draw, so you can spot a limiting cable or device. USB‑IF materials detail the 28/36/48V PD 3.1 steps, and Anker’s product page/FAQ underscores the PD‑3.1‑plus‑5A‑cable requirement for 140W. (usb.org)

Day‑one setup and the first week with the Anker 737 Power Bank (PowerCore 24,000)

Out of the box you get a short 140W‑rated USB‑C cable; first charge the bank via USB‑C1 (the only input). The screen shows state of charge, time to empty/full, and live per‑port wattage, making day‑one checks simple: if you don’t see 140W, your laptop or cable likely isn’t PD 3.1/EPR‑capable. Owners praise the straightforward controls—tap to wake, long‑press to dim auto‑off—and trickle mode for earbuds (double‑press to enable low‑current output on USB‑A), which prevents timeouts with tiny loads. The manual also notes you can recharge the bank on USB‑C1 while powering another device from USB‑C2 or USB‑A, so you can daisy‑chain during a layover. (anker.com)

Capacity and charging speed in the real world

Printed 24,000 mAh equals about 86.4 Wh—well under airline limits. No bank delivers 100% because conversion and step‑ups waste 30–45%; Anker quotes that range and pegs delivered capacity around 13,200–16,500 mAh (about 48–60 Wh at phone voltages). Independent reviewers metering at the USB‑C port typically see roughly 70 Wh, which aligns. In practice you get several full phone charges, one hefty top‑up for a thin‑and‑light laptop, or a solid boost for a handheld console without brownouts. PD 3.1 is why it sustains higher single‑port wattage than 100W‑class rivals. The chart below compares nameplate versus typical delivered energy across popular alternatives, based on manufacturer specs and the common 30–45% loss window seen in manuals and tests. (storagereview.com)

• Nameplate capacity
• Typical delivered in use

View the underlying data

Item	Nameplate capacity	Typical delivered in use
Anker 737 (24,000 mAh)	86.4 Wh	70 Wh
Baseus Blade (20,000 mAh)	74 Wh	52 Wh
Zendure SuperTank Pro (26,800 mAh)	99 Wh	74 Wh

Sources: Anker, Baseus, Zendure product pages; delivered energy approximations reflect manufacturer guidance and aggregated reviewer tests.

Real‑world speed is the other half. Lab‑style channels and pro outlets verify that the 737 negotiates 140W correctly with PD‑3.1 hosts and charges phones and laptops at expected PD tiers, though it will feel warm under sustained high output. TechRadar emphasized laptop utility, while ChargerLAB’s compatibility runs and teardown show the PD‑3.1 controller and 21700‑cell design that enable those numbers. (techradar.com)

Using multiple ports—and how heat or throttling can show up

Use one port and the bank prioritizes that device; use two or three and total output is shared. B&H’s listing spells out distribution: the two USB‑C ports can share up to 140W; a C + A combo allocates up to 100W on USB‑C plus 18W on USB‑A; with all three, you get around 122W on the two USB‑C ports plus 18W on USB‑A. YouTube tests and long Reddit threads match this: phones and tablets still fast‑charge with a laptop attached, but the laptop won’t see the full 140W if others are drawing. Thermals are typical—under long, heavy loads the chassis gets warm and some reviewers note brief dips as the pack manages temperature. Anker recommends moderate ambient temps; practical tip: rest the 737 on a hard surface or give it airflow, not buried under a sweater on the tray table. (bhphotovideo.com)

Recharging the 737: what charger and cable to use

Fast turnarounds require feeding the bank what it can ingest. Anker’s manual recommends at least a 100W USB‑C PD charger and says the 737 can fully recharge in “about 1 hour” with a compatible high‑power adapter; to see that, pair it with a 140W‑capable PD 3.1 charger and a certified 5A EPR cable. With a 45–65W charger you’ll get a longer but perfectly serviceable refill—great overnight, slower for a short gate hop. The bar chart below shows realistic full‑charge times by input wattage, anchored to the 1‑hour figure and scaled for lower inputs; the curve isn’t perfectly linear because the pack tapers near the top to protect the cells. (manuals.plus)

View the underlying data

Measure	Full recharge time
140W PD 3.1 input	1 h
100W PD input	1.3 h
65W PD input	2 h
45W PD input	2.8 h

1‑hour figure from Anker user guide; other values scaled based on PD input and typical taper near full.

Two caveats: first, cables matter—use the included 140W‑rated USB‑C or another 5A EPR cable or you’ll cap input. Second, some chargers negotiate only 100–125W into the bank even if they advertise 140W total (because of port sharing or protocol differences), so check the 737’s screen during the first minutes to confirm what you’re getting. Anker’s FAQ calls out the PD‑3.1 requirement, and retail listings like B&H reflect the multi‑port/input nuances. (anker.com)

Travel reality—and how it compares to typical alternatives

At 6.13 × 2.15 × 1.95 inches and about 630 g (22.2 oz), the 737 is compact for its class but not “pocket.” It’s a backpack or briefcase device—exactly what frequent flyers bring for laptop days. Its 86.4 Wh rating sits below the FAA’s 100 Wh threshold for lithium‑ion spares, so it’s carry‑on only and needs no airline pre‑approval. If security asks, the Wh label helps. Versus rivals, the 737’s edge is single‑port power: a Baseus Blade (20,000 mAh/74 Wh) tops out at 100W, and a Zendure SuperTank Pro (26,800 mAh/≈99 Wh) matches or slightly exceeds capacity but still caps at 100W per port. If you must run or quickly top a high‑draw laptop, 140W PD 3.1 is the separator. The table and comparison above summarize what matters on the road. (anker.com)

Measure	Anker 737
USB‑C PD 3.1 EPR 140W single‑port	Yes
Airline‑compliant capacity (<100Wh)	Yes
Smart display with per‑port readout	Yes
Simultaneous recharge‑and‑charge supported	Yes
Low‑current trickle mode for earbuds (USB‑A)	Yes

Sources: Anker 737 product page and user guide; FAA PackSafe for carry‑on rules.

Frequent flyers say the weight is worth it if a laptop is in the mix; if you only need to keep a phone and earbuds alive, a 10,000–20,000 mAh 30–65W bank will feel half as heavy and cost less. When a gate agent announces a 45‑minute “equipment delay,” being able to dump 60–80 Wh quickly into your computer can mean finishing slides before boarding. TechRadar called the 737 a go‑to for high‑performance laptops, and StorageReview highlighted the rare combo of capacity and genuine 140W PD. (techradar.com)

Long‑term reliability, battery aging, and care (plus quick wins)

ChargerLAB’s teardown shows quality 21700 cells and a modern PD 3.1 controller stack—good signs for longevity. Still, lithium‑ion ages faster with heat, deep cycles, and high C‑rates. The usual Battery University guidance applies: don’t run to empty routinely, don’t store it full or hot, and expect some capacity loss after a few hundred cycles. The 737’s manual frames warmth as normal during heavy use and recommends a 32–77°F (0–25°C) operating window. In practice, “gentle use” means letting a near‑full laptop sip at 40–60W, and avoiding long gaming sessions that peg draw above 80–100W on battery power—both lower heat and stress. Keep the 737 out of sun‑baked cars and recharge with a capable PD adapter rather than trickle‑feeding with a tiny 18–30W brick. (youtube.com)

Quick, actionable setup for best results:

• Use a 5A EPR‑rated USB‑C cable for any 100–140W session; swap immediately if the display shows input/output lower than expected. (usb.org)
• Keep the bank on a hard surface with some airflow during high‑draw charging; avoid insulating sleeves while in use. (manuals.plus)
• For low‑power accessories (earbuds, trackers), enable trickle mode on USB‑A with a double‑press so the bank doesn’t time out. (manuals.plus)
• If you need to charge multiple devices plus refill the bank in a layover, feed the 737 via USB‑C1 and hang a phone or earbuds off USB‑C2/USB‑A. (manuals.plus)
• For flights: pack it in carry‑on, verify the Wh label is visible, and know FAA rules allow up to 100 Wh without airline approval. (faa.gov)

Bottom line: does performance justify the price?

Yes—if your kit includes a laptop or other high‑draw device. Under‑100 Wh capacity (airline‑friendly), truly fast 140W PD 3.1 output, a clear status display, and roughly 1‑hour self‑recharge add up to a tool that behaves predictably from the first week through many months. The trade‑offs—weight, warmth under sustained loads, and price—are real but typical, and outweighed by the confidence that your notebook will keep working away from walls. This is the pack you buy once for flights, conferences, and field work—and stop worrying about mid‑day outlets. (anker.com)