Anker 737 power bank review
24,000mAh, a readout that tells you the truth, and a wattage figure most delivery drivers will never use.
A 24,000mAh USB-C power bank with 140W Power Delivery 3.1 output and a display showing real time power and estimated recharge time.
Check price on AmazonSpecifications
| Spec | Detail |
|---|---|
| Capacity | 24,000mAh |
| Maximum output | 140W, USB Power Delivery 3.1 |
| Ports | Three |
| Display | Digital readout of input, output and estimated recharge time |
| Stated phone charges | About 4.1 full charges of an iPhone 16 Pro, per Anker |
| Size and weight | 6.1 x 2.1 x 1.9 inches, about 22 oz |
| Airline carry-on | Meets carry-on requirements, per Anker |
| Warranty | 24 months |
| Approx. price | Around $110 |
Specifications above come from Anker's published specifications. Treat pricing as approximate, since Amazon pricing moves.
What it does well
- The display is the underrated feature. Knowing the actual watts going in tells you immediately when a cable or a charger is the reason your phone is charging slowly, which is a problem every delivery driver has had.
- 24,000mAh is genuinely enough for a full day of screen-on navigation, which is the workload that empties phones during blocks.
- 140W means it can charge a USB-C laptop at full speed, so it does double duty away from the vehicle.
- Two-way fast charging, so refilling the bank itself does not take all evening.
Where it falls short
- 22 oz is heavy for something you might carry to a door, and most drivers will leave it in the vehicle, which partly defeats the point.
- 140W is a specification most delivery drivers will never approach. If you never charge a laptop, you are paying for a number.
- You need a 5A rated cable and a 140W charger to hit the headline figures. The bundled cable covers it, but a random cable from the glovebox will not.
- A power bank is a workaround for a phone that gets hot and drains. If your phone is throttling in a windscreen mount in summer, cooling and mount position fix more than capacity does.
What owners report
Owner reviews consistently single out two things: the display, which people describe as the feature they did not know they wanted, and build quality, which is repeatedly described as feeling more solid than the price suggests. Reports from people charging laptops are uniformly positive.
The consistent criticism is weight and size. Reviews describe it as noticeably heavier than a 20,000mAh bank, which it is, and several owners say they eventually bought a smaller bank for daily carry and kept this one in the car. The other recurring note is that it does not reach its rated speeds on ordinary cables, which is a specification detail people miss.
Who it suits
- Drivers running navigation, the delivery app and a camera on one phone through a long block.
- Anyone who also carries a USB-C laptop or tablet.
- Drivers who want a bank that will still hold up after several years of daily cycling.
Who should skip it
- Anyone who only needs a top-up. A 20,000mAh bank costs a third of this.
- Drivers whose phone problem is heat rather than charge, who should look at mount position and a cooling approach first.
- Drivers who would rather solve it in the vehicle, where a strong car charger and a charging mount is the cheaper answer.
Alternatives worth considering
The built-in cable means you cannot leave the cable behind, which is the failure that actually happens. Lighter, cheaper, and enough for a phone.
Check price on AmazonUnder half the price with most of the capacity. 30W is slower but still fast enough to gain charge while you drive between stops.
Check price on AmazonIf the engine is running for most of your block anyway, charging from the car solves this without carrying anything. Only fails you when the vehicle is off.
Check price on AmazonCommon questions
How big a power bank does a delivery driver need?
20,000mAh covers a long block with navigation running, with margin. 24,000mAh is comfortable rather than necessary. Below 10,000mAh you are topping up rather than getting through the day.
Power bank or car charger for gig driving?
Both, ideally, but if you are choosing one, the car charger is cheaper and covers the time the engine is running, which is most of a block. Our comparison of the two goes through the cases where each wins.
Why does my phone drain so fast on a delivery block?
Screen-on navigation, cellular data in weak signal areas, and heat. Heat is the one people miss: a phone in direct sun on a windscreen throttles and drains at the same time. The phone and tech setup guide covers the fixes.
Can the Anker 737 charge a laptop?
Yes, at up to 140W with a 5A cable, which covers most USB-C laptops at full speed. That capability is the main reason to choose this over a cheaper bank.
Will it charge at 140W with any cable?
No. Anker specifies a 5A rated cable and a 140W charger for the full rate. Ordinary USB-C cables are commonly rated at 3A and will cap the speed well below the headline figure.
Keep reading
- Power bank vs car charger for delivery drivers
- Phone and tech setup for Flex drivers
- iOttie Auto Sense review: charging while mounted
This review draws on published specifications, manufacturer figures and the consensus of verified owner reviews. We have not tested this product ourselves, and we say so rather than implying otherwise. As an Amazon Associate we earn from qualifying purchases.