Power Bank, 27600mAh 140W USB C 3-Port Portable Charger PD 3.1 Fast Charging Battery Pack Digital Display Power Bank for iPhone 16/15 Series, Samsung, MacBook, Dell, and More

This thing is heavy, as it must be to hold so much power. It's a little smaller in diameter than the Anker Prime 20k, but about 25% longer and 1lb7oz vs 1lb2oz.It charges Fast. Like, i have 2 GaN wall chargers, a 65 and an anker prime 100. when I plug both into the device, one charges at 67 (the 100) the other at 53 at the same time. So under an hour maybe to completely recharge this huge battery pack.The only thing I have to test this on is a laptop that seems to max out at 40w, and the anker prime 20k. When I try with the 20k, since Both are using autosensing in/out ports, it seems to confuse them, only got it to charge the anker at 22w. Plugged into my laptop, measuring with a makerfire usb meter, it quickish went to 40w, but I have nothing to test with a higher draw. Since it Draws at over 100k if you provide it, i'm confident it will Supply that much power also though.The case as others have said is solid metal, the display is nice and clear and provides very nice information.My only negative is that it's too large for me. If I were a traveler with serious needs though, I would definitely want this. Unfortunately, power weighs.Overall this is a great price and a great device if you have need.

On paper, this power bank looked fantastic: good value relative to capacity, phenomenal output characteristics, and a nifty screen. Seemed well-built and well-designed on first usage, but disaster struck when I tried using it to charge my laptop (a Lenovo p14s AMD gen4, same as the thinkpad T14).Plugging it in with a 60W usb-c cable that I've been using with other adapters for months, it first indicated 'charging' on the laptop for a brief second before switching off entirely. The power bank itself also switched off, then turned back on a second or two later. I was pretty sure that some sort of protection circuit had tripped on one or both devices, so I gave it a few minutes and then tried turning the laptop back on. Nothing. Absolutely dead. Plugged it into a known good USB-C PD source---still nothing. Unresponsive to power button input, no lights, display.Undeterred, I took the battery out of my laptop and let it sit for a few days in the hopes that one of the polyfuses in the USB-C circuit would self-reset, but alas, same result. I'm writing this review while my laptop is sitting in a lenovo service depot awaiting a motherboard swap. Thankfully the SSD is removable and my data seems to be intact.I'm still scratching my head as to how this failure could've occurred; the USB-C spec is fairly rigorous when it comes to protecting all devices involved, so either 1) lenovo's laptops don't conform to the PD spec, 2) this powerbank doesn't conform to the PD spec, or 3) some quality control failure is responsible (unlikely, since the power bank works well otherwise). Since I've verified that all the pins are in the right places, and an internal short probably wouldn't have caused this, the only failure mode that comes to mind is that the power bank provided 28V when the laptop is rated to accept 20V. This should NEVER happen -- the voltage provided is supposed to remain at 5V until the negotiation completes on both sides.Maybe this failure is unique to this laptop and power bank combination, maybe it's somehow a faulty unit that I received, but either way, I would avoid this power bank or test it very thoroughly with devices you don't care about before using it. If you have a lenovo laptop that's 1-2 years old, I would be even more careful. I will update this review if I can figure anything else out.

Very good power bank!!! Its exactly like the Anker Prime Power Bank, 27,650mAh . It will charge out of both C ports at 140w, It will charge 0-40% at 130-137w, 41-70% at 97-100w, and 71-85% at 63-65w, 86-100% at 28-30w. Total charge time with a GAN 140w power adaptor - 52-56mins. Nice display. Does not get hot when charging, its warm but not hot by any means. Built very solid, display is bright. Does what I need it to do on the go. I have a Lenovo Legion Pro 7i with a 13900hx and a 4090 (granted i dont use this on the go) but I am getting around 9 hrs of battery life on balanced, doing all kinds of things. I was able to get 94w out of port c 2 and charge the battery completely in 1 hr from 20% to 100%. So expect 1 full charge from this to a laptop with a 99.99wh battery in a laptop.

I like the form factor, weight (642gr or 22.6oz), and the smart display of this power bank—it effortlessly shows all the operating details you need at just a glance. It's ideal for keeping my devices powered up on the go. However, even though it boasts a 27,800mAh/99.36Wh capacity (based on a 3.7V standard), my tests (under a 5V/1.35A load) reveal it only manages to deliver 16,210mAh or 82.69Wh. That's slightly less than another budget-friendly power bank I own, which, despite claiming a slightly lower capacity of 26,800mAh, actually delivers a bit more power: 16,853mAh or 84.27Wh.I haven't tested it with higher voltage loads myself, but based on what I've read on techtest.org, it seems this power bank doesn't perform that efficiently with lower voltage loads. For instance, at 5V/2A, it outputs 76.613Wh, at 9V/2A it jumps to 87.297Wh, and at 20V/5A it hits 85.148Wh.There's also a weird issue during recharging. Even when the power bank indicates it's fully charged (displaying 100% and zero input wattage), an external device reveals it still has not finished recharging (see photos attached). This continues for another half hour, recharging the power bank despite the display indicating it's already at 100%. This could indicate an internal calibration issue or something else, it's odd, to say the least. For this reason alone, I'm taking off one star.Despite those minor issues, I'm leaning towards calling this power bank a good option. Its real worth will unfold with time. I do wish, though, it came with a carrying case or pouch for that extra bit of convenience.

Super lightweight for what you get, charges an iPad and legion go with plenty of battery life to spare! So definitely a an amazing charging capacity! Also, doesn’t heat up like most power banks. If you’re looking for a good charger for larger devices for a good value, this is it!