737 Power Bank, 24,000mAh 3-Port Laptop Portable Charger with 140W Fast Charging, Smart Display, for Outdoor Work, Compatible with iPhone 16/15/14 Series, Vision Pro, Samsung, MacBook, and More

This is an awesome device. After some quick tests I can say it fully meets my needs and expectations. Yes, it is expensive, and at $150 I didn't think I could justify it. I got it on sale for $100 and I believe it was definitely worth it. The display is fantastic and really provides all the information you need in order to know what is going on with the inputs and outputs. My main use will be for charging the 50wh battery in my Surface Pro 8. The Anker 737 will charge it at a 55w rate via either of the two Thunderbolt ports (the supplied Microsoft charger is rated at 60w through the Surface connector), and it appears that the conversion efficiency is about 80%, meaning that it can fully charge the Surface and have capacity left over to charge a phone or two. (An interesting note about conversion efficiency based on some quick tests and calculations: If I charge my Surface Pro 8 from my Jackery 300’s PD port, it takes about 60wh to fully charge the 50wh battery. It appears that the Anker 737 will need to supply almost 70wh to fully charge the 50wh battery. If I connect the Microsoft AC adapter to the Jackery 300’s AC port and charge the Surface that way, it requires about 90wh to fully charge the 50wh battery. The more up and down conversions you do, the more you lose.) The supplied cord is rated for 140w and is 60cm long (NOT 6 cm as some have said), or about two feet. I had limited success with pass-through charging, YMMV. I connected a 45w charger and the Anker started charging at 42w. Then I connected a phone, which started charging at 10w, but the input to the Anker then dropped to an identical 10w. A different charger and a different load might give different results, I don't know. Others have complained about having difficulty charging DJI batteries. Here's what I think is going on (my best guess, anyway): I have the Mini 2 battery charging hub and three batteries. The hub appears to be happiest with an input of 12v, 1.5a. (The supplied DJI charger is rated at 9v, 2a and 12v, 1.5a.) USB-C PD 3.1 does not appear to support 12v, and when connected to the hub, the hub and the Anker can't seem to negotiate an 18w charging rate at 9v. HOWEVER, when I connect the hub to the Anker's USB-A port using the supplied DJI cable all is well and the hub charges at 18w. Some users have panicked over the USB-A port showing 0.1a with no load connected. Anker explains this on their support page (which takes some digging to find). 1. Make sure Trickle Charge mode is off (tap the button twice). 2. Wait two minutes after disconnecting a load from the USB-A port. 3. Relax. Some users have experienced less than expected charging rates. Not all USB cables are created equal. (In fact, back in the early days of USB-C there were some cables that didn’t meet the standard and were risky to use.) Make sure your cable supports the rate your device requires. I bought a six foot, 140w Anker cable to go along with the 737. That, plus the cable supplied with the 737, should meet all my needs.

This power bank is extremely reliable and well-made. The 24,000mAh capacity provides plenty of power, and it charges devices quickly and efficiently. The build quality feels solid and premium, exactly what you expect from Anker. The display is useful for monitoring battery status, and having multiple ports makes it convenient for charging more than one device at a time. Great for travel, work, or everyday use. Overall, an excellent power bank with strong performance and dependable quality.

The main reason for purchasing this is to charge my M1 MacBook Pro and 2017 12.9 Inch iPad Pro simultaneously. When I originally got the power bank I charged it back up to full capacity. I ran into a few minor issues with the charging of my iPad Pro in terms of speed but it has calmed down as of late. I've run quite a few tests to see what it's capable of. UPDATE Anker 737 Test Results Charge iPhone XR, 2017 12.9 iPad Pro, M1 MacBook Pro: iPhone XR: 78% iPad Pro: 58% MacBook Pro: 70% Recharge Speed on RavPower 90watt 2 port charger: 10 minutes: 18.72% 20 minutes: 35.17% 30 minutes: 51.05% 40 minutes: 66.35% 50 minutes: 81.17% 1 hour: 96.37% Finish at: 1:03:18 Charging MacBook Pro: Finish at: 100% Remaining Capacity: 23% Charging iPad Pro and MacBook Pro: iPad Pro: 49% MacBook Pro: 78% Charging iPhone XR and iPad Pro: iPhone XR: 100% iPad Pro: 100% Remaining Capacity: 42% Charging MacBook Pro after 80 percent charge on Anker 737: MacBook Pro: 93% Charging Anker 737 after 35 minutes and charging iPad Pro: Anker 737: 62% iPad Pro: 100% Remaining Capacity: 13% Charging Anker 737 after 25 minutes and charging Nintendo Switch: Anker 737: 45% Nintendo Switch: 100% Remaining Capacity: 17% Charging MacBook Pro after 50 minute charge on Anker 737: Anker 737: 84% MacBook Pro: 100% Remaining Capacity: 12% Charging iPhone XR and MacBook Pro: iPhone XR: 98% MacBook Pro: 94% Charging iPhone XR, Nintendo Switch, and MacBook Pro: iPhone XR: 92% Nintendo Switch: 70% MacBook Pro: 86% Charging iPhone XR, Nintendo Switch, and iPad Pro: iPhone XR: 100% Nintendo Switch: 100% iPad Pro: 100% Remaining Capacity: 2% Charging MacBook Pro and Docked Mode Switch: MacBook Pro: Yes Docked Mode Switch: No Charge Power Bank for 10 minutes: iPhone XR: 86% Charge Power Bank for 20 minutes: Nintendo Switch: 88% Charge Power Bank for 30 minutes: iPad Pro: 81% Charge Power Bank for 40 minutes: MacBook Pro: 84% Anker 737 Powerbank Switch Dock + phone test: Anker 737 Percentage Used: 36% Anker 737 Percentage Remaining: 64% Time spent charging iPhone XR to full: 1: 1:53:28 Switch Dock time when using Anker 737: 6:11:37 Pass through Charging Test: 5 minutes: Anker 737 10.97% iPhone XR 10% 10 minutes: Anker 737 20.93% iPhone XR 16% 15 minutes: Anker 737 30.38% iPhone XR 23% 20 minutes: Anker 737 39.66% iPhone XR 29% 25 minutes: Anker 737 48.76% iPhone XR 36% 30 minutes: Anker 737 57.64% iPhone XR 43% 35 minutes: Anker 737 66.39% iPhone XR 50% 40 minutes: Anker 737 74.98% iPhone XR 57% 45 minutes: Anker 737 83.35% iPhone XR 63% 50 minutes: Anker 737 91.64% iPhone XR 69% 55 minutes: Anker 737 97.55% iPhone XR 75% 1 Hour: Anker 737 99.30% iPhone XR 80% When Anker 737(Just over an hour) is finished iPhone XR 80% It does come with a short 140 Watt USB C Cable to charge the power bank but it does NOT come with a wall charger to power it. Pros - Recharges quickly with a 100 Watt or higher charger(sold separately) - Recharges laptops at full speed and can trickle charge two high-end laptops - Smart display indicates tons of useful information such as battery percentage and wattage charging - Small enough to fit into a backpack Cons - Expensive($149.99) - Doesn't come with a wall charger - Occasionally has issues charging 2017 iPad Pro Overall, if you have a high-end USB-C laptop such as the 16-inch MacBook Pro, this is the best choice to go for in the sub-$200 range. Your laptop will thank you later

I needed a charger that would reload my iPad Pro. I have a couple of quite powerful battery packs, but the best of them struggled even to maintain the iPad charge at the same level (though it does well in recharging my iPhone). So, more power needed. This battery is a chunk, It’s big and heavy. When I first got it, the booklet advised putting it on charge right away and, yes, that is needed. The display showed it at only 16% of full charge out of the box. I put it on a regular 3amp (about 15w) charger and the display usefully, if rather disappointingly, predicted it would take about 16 hours to full charge (It did start at 99 hours immediately, but then it got its act together and gave a more manageable timeframe though the timing does bounce around a bit). I left it on charge overnight and it was 100% the next day, so I’m guessing around 12 hours from 16% to 100%. I would have preferred faster, preferably a lot faster. But Est Quod Est… In my first trial at using the battery to charge my iPad the iPad was at 83% and the battery at 100%. It charged the iPad up to 100% in maybe 45 minutes which ran the battery down to 92%. So a 17% iPad charge resulted in an 8% run down on the battery, About a 2:1 ratio. That implies I should get two whole iPad charges out of one full battery charge and the charging should take about 6*45min or about 4.1/2 hours. Not too bad. Again. I would have preferred more charge for a shorter time. But this was only my first pass at calibrating the charging capability of this battery, so we’ll see how it pans out in the longer term. In the meantime, I really like the display. It shows the current draw, predicts charging time and shows the current charge level of the battery—all very useful metrics. It is chunky and quite heavy, which somewhat detracts from its portability, but more powerful batteries are always bigger and heavier. That’s just the way it is. My interim judgement is that it’s a plus and assuming it is able to reliably deliver charges to my iPad for a good number of battery recharge cycles, I will be happy I got it. I may update these metrics after I’ve run it for a while, but for now: recommended.

This thing is pretty cool, but it is also really not the power bank for everyone. It is more of a specialized device designed for people with just about the most demanding, cutting edge, portable power requirements around. People who need a lot of total battery capacity AND potentially very high current draws, but still want something relatively portable that can drop into a backpack. If that is your use case, this thing is very nice. For everyone else, it is probably a bit of overkill. Understand that both high battery capacity AND the high output power are each going to meaningfully increase the device's size and weight, which matters a lot when thinking about portability. Both of these features also add additional cost, and that is before you add the cool little OLED status screen. So unsurprisingly, given everything it is capable of, this premium device is not exactly cheap. As for the size and weight commitment, in person this thing is a bit of a beast. It contains a total of six 18650 cells and a 140 watt charger, after all. In practice, it is big enough and heavy enough that you will be leaving it home unless you know that you really need it. I am in the target market for this thing - my primary use case is for a MacBook Pro 16", where I am going to be without access to any power outlet for an extended period of time. If that sounds like you, needing extended runtime of a single, quite powerful computer off-grid, great. But if your power bank needs are more modest, I would definitely consider other, cheaper alternatives. Anker makes good stuff and they have power banks in all sorts of sizes and capacities. So don't buy more than you really need here. For example, this unit probably isn't the best pick for charging up a bunch of your phones, flashlights and such in an extended power outage. Yes, it could be used in this way in a pinch, but charging a phone or even a tablet with a device that can output as much as 140 watts at once is a bit of overkill. I have also found that very low wattage devices are often not even detected by the USB-C ports, even in trickle charge mode. Those things need to be charged through the USB-A port, and there is only one of those on this device. That is not really a flaw in this product, Anker could certainly have enabled low wattage charging through the USB-C ports. Instead, it is more a reflection of what this device is really designed for. The build quality seems good, and the little screen showing input and output wattage is definitely not a gimmick, it turns out to be so useful, because it also gives instant estimates of how long the device can power whatever loads are plugged into it, time until the battery is full, and even the number of charging cycles the battery has gone through. The interface is dead simple, with about the only things you have to control are whether the screen shuts itself off or stays on, and whether to enable "trickle charge" mode so that very low power demand devices can still draw power. The manual notes that to get the full 140v out of it, you should use the mag-safe connector with the Macbook Pro 16". This is because the USB-C ports on the Mac Book Pro max out at 100 watts. In practice, this limitation won't matter much, unless you want to quick charge the Mac for some reason. 100 watts is normally plenty to just keep the machine running, even under very heavy load, and pulling the power out more slowly should help the unit last longer anyway. What don't I like? Not much. About the only thing that could be improved is the relatively small number of ports. I'd like to see another USB-A port on this at minimum, and at least one or two more USB-C ports. This is a relatively high capacity device, and more ports would give greater flexibility to this device. Right now it is more of a one-trick pony focused a little too aggressively on high-end, power users. I am glad they released this thing, but I suspect a slightly de-rated version of this that outputs maybe 60 or 80 watts maximum with more ports would be more useful to a much larger set of people.

So there's a lot about what I like about this product and just one or two things I don't like so first what I like about it is it's exactly what it advertises itself to be not just for the sake of an extremely fast charging battery Bank to and from but just for the fact that you get all the technical information on the screen which is really really nice because I use this a part of my portable solar pad which I like to read the wattage coming in and it does that perfectly and my solar pad is a 40 watt solar pad which is absolutely able to keep up with the battery bank also I usually just keep mine in my emergency supplies backpack I have kept it charged for the last 4 months and in that time it's only lost about 2% you just have to make sure you turn off the screen before you put it away or else it will drain a few percentage every few days The way you do that is you simply just hold the button down for 2 seconds until the screen turns off also make sure you have the auto sense function off unless you're going to use it pretty regularly I like the three ports especially the regular type USB port for slow charging things there are a few annoying electronics that require that and I've actually been able to use this specifically to charge them which is kind of nice The cons... It's a little heavier than I expected but not a problem for me necessarily just consider that Another con is that I keep seeing from several people that sometimes the screen has gone off for them and it no longer comes back on The battery bank seems to still work and operate exactly as intended however for me that would really really frustrate me because I pretty much got this exactly for the screen itself but it has not happened yet and I've only seen a few people say that they've had that problem so maybe do the research to see if you come across the same thing.... I think the last con that I can think of which I really don't like is the trickle charger mode so here's a couple things that you're not going to be able to find pretty much anywhere when the trickle charge mode is activated if you deactivate it you have to wait 2 minutes for that little light to turn off during that time it will still continue to trickle charge and it'll show that it's losing energy even if nothing's plugged in this is just a natural function of the device so don't fret but I had to do some digging to find that out also if you decide to turn the trickle charge back on it's going to be another 2 minute timer so I would just wait it out also when the trickle charge is turned on it's going to affect the charge rate and the discharge rate of the device so consider that with trickle charge turned on I was freaking out the first time because I thought I broke it 😆 All I had to do is wait 2 minutes still I've hit that stupid trickle charge a few times and it's kind of annoying because it only takes a double press it can happen pretty easily if you're trying to cycle through the menus quickly That's about it That's all I have to say I would absolutely recommend this product. I hope my review helps somebody Edit it's been about a year and a half now and so far everything works just fine over the last year of it being in my bag it literally has lost maybe 2% and then I let it drain a little bit and recharged it but to be honest, it really is exactly what I said in my review

⭐⭐⭐⭐⭐ Massive power, fast charging, and smart display — perfect for travel The Anker 24,000mAh 3-Port Power Bank is a game-changer for keeping multiple devices charged on the go. It handles everything from iPhones and AirPods to MacBooks and Dell laptops with ease, and the 140W output means devices charge extremely fast. ✅ Pros: High capacity (24,000mAh): Can fully charge a smartphone multiple times or power larger devices like laptops. Ultra-fast 140W output: Charges devices quickly and efficiently, even high-demand laptops. Smart digital display: Shows exact battery percentage and output, so you know how much power is left. 3 ports for multiple devices: Charge phones, tablets, and laptops simultaneously. Universal compatibility: Works with iPhone 15/14/13 series, Samsung devices, MacBook, Dell, AirPods, and more. Portable for its size: Despite the massive capacity, still compact enough for travel or work. ❌ Cons: Heavier than standard power banks: Its 24,000mAh size adds some weight — not ideal for pockets. Pricey: Higher cost than smaller chargers, but the power and speed justify it. No built-in wall plug: Requires USB-C cable for charging itself, so plan ahead. 🌟 Final Verdict: The Anker 24,000mAh 3-Port Power Bank is ideal for travelers, professionals, and anyone with multiple devices. Fast, powerful, and reliable, it’s worth the investment for uninterrupted charging anywhere.

**UPDATE October 2025** I previously purchased this power bank to run a Resmed AirMini travel CPAP using a USB-C power converter cable. That battery did indeed not power up my CPAP, no matter what I tried. After noticing that several other people WERE able to get their AirMini CPAP's working with this power bank, I decided to give it another try even though Anker Customer Support could not help me get it working with the first unit. I took a chance and purchased this again and this one now DOES power my AirMini. The only thing I can guess is that I received a very early firmware version that could not correctly negotiate the power voltage/wattage/amperage and as a result, would immediately shut down. The unit I just purchased however, does work and it works well. I have now used it and was able to run my CPAP for 2 nights (~6.5 hrs/night) of use out of one charge with about 1-2 hours of CPAP use remaining CPAP before it needs to be charged. I can't convey how excited this makes me. However, it has been almost 2 years since my initial purchase and review, so I suspect this product will soon be put out to pasture. I am just glad I managed to get a reasonable price and finally get an informative display power bank to run my CPAP so I know exactly how much charge is left. Better late than never. Thank you Anker! - - Original Review - - Summary - Will not power a Resmed AirMini, but otherwise is a great power bank. The bad: This power bank is great if you just want to charge electronic devices. However, if like me, you are trying to find the largest possible amount of power at or under the TSA approved limit for batteries that will power a travel CPAP, this is not it. I currently have a Renogy power bank (https://www.amazon.com/Renogy-72000mAh-Portable-Generator-Technology/dp/B0791WDZTW/ref=sr_1_2_sspa?keywords=renogy&qid=1706802910&sr=8-2-spons&ufe=app_do%3Aamzn1.fos.f5122f16-c3e8-4386-bf32-63e904010ad0&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1) that has a massive 266wh capacity, but it is large and heavy and disallowed on domestic US airlines. It's also not something you would want to lug around for long, but works great as a backup if power goes out. It powers my Resmed Airsense 10 using a 12v cigarette adapter and my AirMini just fine using a 20v USB-C power supply (https://www.amazon.com/dp/B0BV1J88GV?psc=1&ref=ppx_yo2ov_dt_b_product_details). I was hoping this power bank would be the small and light unicorn for travel that would run my Resmed AirMini. When plugging the AirMini into the power bank using the 20v USB-C power supply however, the light on the AirMini flashes once and goes dark. I tried both ports, tried plugging the 20v PSU into the power bank first, then the AirMini as well as the other way around. Nothing could get the power bank to supply any power for more than a momentary blip. This is confusing, especially when Anker makes other power banks that DO work with my 20v PSU/AirMini combination. For example, this power bank (https://www.amazon.com/dp/B0B9XHR6BG?psc=1&ref=ppx_yo2ov_dt_b_product_details) works perfectly, but I was hoping to make use of the charge display on this unit as well as the slightly larger capacity, faster charge times and smaller size. Otherwise the power bank is great. The good: It charged stunningly quickly using the Anker 67 watt GaN charger over USB-C. The display that shows how much power is being utilized both on charge and discharge is fantastic. You can see exactly how much power you have at a given moment as well as the draw any device is making on the battery. This will help you manage power between recharges far more effectively than a few blinking lights ever could. It is however more expensive than older versions from Anker that will accomplish the same thing for less money.