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ZMI

ZMI PowerPack No. 20, QB826G Ultra Laptop Power Bank Worldwide Ed. 25000 mAh PD Max 100W Single Port, Max 210W Total, USB C Portable Charger for MacBook Pro & Laptops That Receive Charge via USB C

  • Based on 136 reviews
Condition: New
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$159.00 Why this price?

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Availability: 17 left in stock
Fulfilled by Amazon

Arrives Friday, Jan 10
Order within 5 hours and 30 minutes
Available payment plans shown during checkout

Features

  • POWERFUL: Capable of 100W USB PD output over the first USB-C port. Charges high-powered workhorse laptops like the 16 inch MacBook Pro. Also capable of outputting 45W over the second USB-C port and 65W over the USB-A port at the same time for a combined maximum output of 210W.
  • HUGE CAPACITY, FLIGHT-FRIENDLY: 25000 mAh battery capacity can charge a 13 inch MacBook Pro 1.3 times. But still under the battery size limit imposed by the FAA, so you can bring it on the plane in carry-on luggage and use it during flights.
  • COMPATIBILITY: MacBook Pro (2016 and newer), MacBook Air (2018 and newer), iPad Pro, Dell XPS 13 (9370), Dell XPS 15 (9560), Dell XPS 13 (9350), GoPro, wireless headphones
  • SAFETY & EFFICIENCY: Built with five 21700 high-quality power cells for better capacity/energy density and greater charge-discharge performance than traditional 18650 battery cells. Comes with temperature, overcurrent, overvoltage, and short circuit protections.
  • IN THE BOX: 1x PowerPack QB826G power bank, User Guide

Connector Type: USB C


Brand: ZMI


Battery Capacity: 25000 Milliamp Hours


Color: Grey


Special Feature: High efficiency, high power


Product Dimensions: 7.4 x 3.2 x 1.1 inches


Item Weight: 1.28 pounds


Item model number: QB826G


Batteries: 1 Lithium Ion batteries required. (included)


Is Discontinued By Manufacturer: No


Special features: High efficiency, high power


Other display features: Wireless


Color: Grey


Manufacturer: Zimi Corporation


Date First Available: March 10, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jan 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great for laptop.
I've been using the ZMI PowerPack No. 20 for a few weeks now and overall, I'm quite pleased with it. The output power is great and it charges my laptop quickly. The build quality is also impressive and the unit feels sturdy and well-constructed. One minor drawback is that the display is not very informative and only shows the battery percentage, which can be a bit frustrating. It would be nice to see more information about the charging mode on the screen. Overall, I'm happy with my purchase and would recommend the ZMI PowerPack No. 20 to anyone looking for a powerful and reliable portable charger. ... show more
Reviewed in the United States on January 24, 2023 by Roman

  • Heavy but High End
I wanted a battery that I could easily get through TSA, had the maximum capacity possible (TSA limit is 100wh) and could charge my devices quickly. This battery hits all those marks, it's just a bit under the TSA capacity limit (so, in theory, it could have closer to 28,000 mah rather than 25,000 mah) and has one very high speed charging port for USB-C devices. It easily and quickly can charge my macbook pro, ipad pro, and iphone -- along with other devices. The LCD power meter on the side is pretty useful for seeing how much charge is left and is more useful than the typical indicator lights you might get on other batteries. Along those lines, it's nice to see exactly how much percentage charged the battery is just by looking at it rather than seeing 4 out of 5 indicator lights, for example. The one downside of this product, that is pretty much going to be the case with any battery of this capacity, is the size and weight. It's fairly large and heavy and it does fit in a messenger bag pretty easily -- but don't expect to ever keep it in your pocket. ... show more
Reviewed in the United States on March 25, 2022 by M. J.

  • Impressive performance - but still No useful product instructions
Solid build. Not too big or heavy given its capacity. Charges up quickly. And it quickly charges - less than an hour to take my MacBook Air from 20% to 100%. Very responsive customer service gave me details of how to use that were not stated in the really really small user guide it comes with, which does not have any instructions for use. There are different colored ports and 2 charging cables included, but the company told me to use my Mac charging cable. ... show more
Reviewed in the United States on October 17, 2021 by Dharma Bum

  • The best of the best
Listen, I can rave about this sucker all I want, but at the end of the day, I'm not an expert in battery tech / testing, and most of the blogs recommending products to you aren't either (spoiler alert - "the best _____" blogs are pretty much all paid advertisements.) So here's my recommendation - go check out AllThingsOnePlace who has a video channel and some other material. His knowledge and the testing he does on portable batteries, charge adapters, and cables is incredible. Ready for another spoiler alert? This battery is pretty much best in class, and it brings a few things to the table that you won't really grasp unless you understand some nuances, like the quality of the battery cells inside, and how that affects the ability to actually discharge at the [very high] claim rates. This is particularly important, because if you're looking at a high end battery, you're probably needing the high power output that it's advertising. This battery isn't the smallest, it doesn't have the fanciest LEDs, and it isn't the cheapest, but the value that ZMI packs into this product is pretty much unrivaled. Again, don't take my word for it - check out the expert who literally puts the testing on display, and make the decision for yourself, because you might also find something else that suits you better. ... show more
Reviewed in the United States on November 1, 2023 by K.A.

  • Good power bank
All is good
Reviewed in the United States on January 21, 2023 by b747

  • One of the USB-C ports melted and no longer works
The display is super bright and needs to be covered with tape to not disturb my sleep. It also cracked when I dropped the battery. The hardware itself is otherwise high quality and the two remaining ports work, so I still use this daily. I also bought another large USB powerbank by another manufacturer that hasn't had these issues and also displays the input and output wattage for each port. I wish I would have bought two of those instead. ... show more
Reviewed in the United States on June 12, 2023 by Benjamin Taft Benjamin Taft

  • Great for travel or offroad power
I use this product to power my MacBook Pro 2019 for working remotely outside, and 2 of these will power the MacBook all working day (8 hours) when I use my Rokid Air glasses with the lid closed of my MacBook. They are extremely efficient and they do not get hot, even when used outside and in my laptop bag. I wish I had more of these units and they are fantastic. As far as instructions, they will recharge through either of the USB-C ports, but to get the 100w output to recharge the MacBook, it has to be plugged in to the orange USB-C port. They do take a while to recharge, but I put them on a charger overnight sometimes, and I haven't had a problem. I wish Amazon sold the multi-pack units at a discount and I would pick up some more of these. The LCD display of remaining power is super useful so I can tell about when I'll need to swap out batteries, and these work fine going through the PD port of a USB-C Hub to the MacBook Pro. ... show more
Reviewed in the United States on February 28, 2022 by C.Wheatley

  • dual usb charger
why...why...why do chargers insist on putting the absolute brightest LEDs they can find on them to let you know they are charging something? and if that wasn't enough, why do they have them blink continuously? haven't you ever used a charger at night? at least add a night mode or a switch or ... something...sigh. usb charging ports are great. two of them both in/out capable. the single usb-a charging port is quirky. when i use it to charge my iWatch, there is insufficient current draw and it cuts power to the port. i have to hold the battery pack's power button for 4s to force the port into low power mode for the next 2-3 hours. why? i don't know. but this is when the designers though it would be a good idea to make the leds on it blink. ... show more
Reviewed in the United States on April 16, 2022 by J

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