PowerCore 737 Powerbank 24,000mAh, External Battery with 3 Ports, 140W Power, Digital Display, Compatible with iPhone 13 Series Samsung, MacBook, Dell, AirPods and more

Really powerful battery bank useful for devices that draw a lot of power. Total output is 140w which is enough to power a laptop while in use; when using multiple devices this output will be split between them. I bought this for a long trip recently and it performed perfectly on every device we used it with. The main reason I got it was for a Steam Deck to give a bit more game time. The maximum draw I see when playing is around 35w, though it's usually around 28-30w so this battery would be powerful enough to charge two of them simultaneously (albeit, with only about 1hr extra charge per console). For the most demanding games it will give around 2 hours of extra time, with less power-hungry games it will manage a lot more. It works great with our phones/ tablets with everything fast charging. One of the best things about it is the little screen which tells you how much power is being input/ output on each connection, and the remaining battery time/ charge time. This is super useful when gaming to know how long you have left, or when charging so you know exactly when it will be done. The next best thing is how fast the battery charges; when using a 100w charger this thing flies and will be fully charged from empty in less than an hour. I rarely ran it down completely so I usually find myself topping it off from 50% which it does in about 25 minutes. You do need a powerful charger to get the best out of it though, and anything over 100w is quite expensive right now. I'm using a Ugreen Nexode 100w charger which are around £50-60 at the time of this review. If you want a full 140w+ charger you can expect to pay well over £100. Also key is what kind of cable you use, be sure to buy quality, properly rated cables if you want the fastest charging. Good Points - fast charging - useful screen - feels quality - multiple outputs - small enough capacity to be carried on a plane Bad points - it's heavy and can be a bit of a pain to carry around for less demanding charging duties - capacity is large but could have been larger and still comply with air regulations, would have been nice - requires a powerful, expensive charger to get the best out of it

I’ve been using the Anker 737 Power Bank mainly with my Legion Go, and while it has some great features, there are a few trade-offs. Here’s my honest take: Build and Design The build quality is excellent—this power bank feels super sturdy and looks sleek. The digital display is one of my favorite parts (check out the photos). It shows the battery percentage, charging speeds, and lets you toggle features like auto-screen off. It’s really convenient compared to the usual blinking lights on other power banks. Performance and Capacity Here’s where things get a bit tricky. While the 24,000mAh capacity sounds huge, powering my Legion Go drains it surprisingly fast. After about an hour of gaming, the power bank needs to be recharged, which was a bit disappointing given its specs. However, not surprising. Your results with vary depemding upon the power profile selected on your handhld. That all said, it does charge my Legion Go quickly while in use, so it’s still super handy if I’m gaming on the go and don’t have access to an outlet. Run time increases while using my viture xr glasses, so like there's many variables to consider. However you'd get maximum 1.5 hours , all things optimal. It also works well for phones and other smaller devices, and the two USB-C ports plus the USB-A port are a nice touch for charging multiple gadgets at once. Everyday Use I carry this power bank in my Tomtoc bag alongside my Legion Go and a few other accessories. It fits perfectly and keeps my setup organized. The weight does add some bulk to the bag, but for me, the convenience makes it worth it. What I Like Digital Display: Shows real-time info like charging speed and battery percentage. Fast Charging: Charges my Legion Go almost as fast as the original adapter. Build Quality: Feels durable and premium. Good for Multiple Devices: Works great for phones, earbuds, and tablets. What Could Be Better Drains Fast with Gaming: It only lasts about an hour as i said, when powering my Legion Go during gaming, which means I have to recharge the power bank sooner than I expected. Not Lightweight: It’s a bit heavy, but that’s to be expected for a power bank with this much output. Final Thoughts This power bank is a mixed bag. It’s amazing for quick charging and keeping multiple devices powered, but if you’re planning to use it heavily with something like the Legion Go, don’t expect it to last all day. That said, it’s still super convenient for travel and fits well in my Tomtoc bag. If you need a powerful charger to extend tour gaming time on your handheld or other uses, it’s still a solid choice. Please note that I have only tested this on the Legion go and no other handhelds so csnt say about those.

I’ve owned this power bank since April 2023 and after around 2.5 years of regular use, it’s still performing exceptionally well. This is a proper unit, it has a reassuring weight to it that immediately gives confidence in the build quality. The smart digital display is genuinely useful, showing real-time input/output wattage and charging status, which makes a big difference compared to basic LED indicators. One of the standout points for me is that it can charge my 12.9” iPad Pro faster than the battery depletes, something very few power banks I’ve used have been able to do. The high-output USB-C ports make it ideal for tablets and even laptops when you need power on the go. After 108 charge cycles, mine is still showing 97% battery health, which says a lot about the quality of the cells and overall longevity. If you want a high-capacity power bank that’s clearly built to last, not just for occasional top-ups but for demanding devices, this has been rock solid for me and has easily justified the price over time.

Great charge speed and clear display. It’s a bit bulky and heavy but it’s well built.

Performance exceeds expectation.

重いけど減らない。充電は対応アダプタ使うとものすごく早いけど、ものすごく暑くなる

Excelente batería y si que cuida muy bien tanto el celular como a esta misma ya que al detectar mucho calor empieza a bajar los Watts para evitar daños, regula muy bien la temperatura En lugares muy cálidos no la recomiendo dejar dentro del carro ni en lugares cerrados cálidos porque podrías dañarla, a pesar de ser de calidad ninguna bateria aguanta temperaturas tan altas Trae un cable original de la marca el cual con ese es mas que suficiente para cargar aparatos

Does not come with a lead. Either to power source or to device to be charged. Instruction are too tiny to read. Discriminates against elderly and all visually impaired people.

Quick Verdict This is one of the most powerful and feature-packed power banks available right now. It’s overkill for casual users, but an excellent choice for laptops, travel, and heavier tech setups. Performance & Charging The key highlight is the 140W output (USB-C PD 3.1), which is enough to charge laptops like a MacBook Pro at near full speed. It can charge up to three devices at once (2× USB-C + 1× USB-A), making it very versatile. Recharge speed is also impressive, reaching about 70% in roughly 30 minutes with a high-powered charger. Pros Extremely high power output (rare 140W class) Reliable charging for laptops, tablets, and phones Premium build quality with a detailed display Faster recharge than most power banks Cons Heavy (around 630g), not pocket-friendly Who Should Buy This? Great for laptop users, frequent travelers, and people with multiple devices like camera gear or handheld consoles. Not ideal for casual phone charging or ultra-light travel where weight matters more than power. How It Compares This sits firmly in the premium, power-user category. It’s widely considered one of the best options for high-capacity, high-output charging, especially for laptops. Final Verdict If you want maximum power in a portable form, this is one of the best options available. Rating: 9/10 Key Takeaway: Overpowered, but in a good way.