ZMI PowerPack 20K Pro USB PD Backup Battery & Hub (USB 2.0 Data) 65W 20000 mAh Power Bank with PPS

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Price: $85.95
(as of Jan 20,2022 14:20:31 UTC – Details)

Product Description

ZMI PowerPack 20K ProZMI PowerPack 20K Pro


Model: QB823
Cell Type: Lithium-ion
Cell Capacity: 20,000 mAh 3.6V 72Wh
Nominal Capacity: 12,000mAh @ 5V 60Wh (USB-C: 5VšŒ‚3A & 2Ɨ USB-A: 5VšŒ‚3A total); 2,800mAh @ 20V 56Wh (20VšŒ‚3.25A)
Maximum Charging Voltage: 12.6V DC
Input Port: 1Ɨ USB-C
USB-C Input: USB PD, Quick Charge 2.0 5VšŒ‚3A 9VšŒ‚3A 12VšŒ‚3A 15VšŒ‚3A 20VšŒ‚2.25A

Output Ports: 1Ɨ USB-C and 2Ɨ USB-A

USB-C Output (used alone) Charging protocols supported: USB PD 3.0 5VšŒ‚3A 9VšŒ‚3A 12VšŒ‚3A 15VšŒ‚3A 20VšŒ‚3.25A (65W max) NOTE: For wattage greater than 60W, an E-Mark USB-C to USB-C cable is required. PDO: 5VšŒ‚3A, 9VšŒ‚3A, 12VšŒ‚3A, 15VšŒ‚3A, 20VšŒ‚3.25A PPS: 5V-11VšŒ‚4A, 5V-20VšŒ‚3A
Either USB-A Output (used alone) Charging protocols supported: Apple 2.4A, QC 2.0/3.0, FCP, AFC 5VšŒ‚2.4A 9VšŒ‚2A 12VšŒ‚1.5A (18W max)
USB-C & USB-A Output (multiple devices) USB-C: 5-15VšŒ‚3A 20VšŒ‚2.25A (45W max via USB-C), PPS: 5-11VšŒ‚4A, 5-20VšŒ‚2.25A; USB-A ports: 5VšŒ‚3A (15W total over 2 USB-A ports); 60W max over all three ports

Recharge Time

Approx. 3 hours with a 5-20V DC 45W USB PD power adapter
Approx. 5.5 hours with a 9VšŒ‚2A 12VšŒ‚1.5A power adapter and quality charge cable
Approx. 9.3 hours with a 5VšŒ‚2A power adapter and quality charge cable

Dimensions: 6.31 Ɨ 3.22 Ɨ 0.83 in (160.4 Ɨ 81.8 Ɨ 21 mm) Weight: 15.52 oz (440 g)

ZMI PowerPack 20K Pro

qb823 headerqb823 header

Since 2014, Zimi Corporation has cumulatively sold over 110 million portable chargers/battery packs worldwide, including our PowerPack line of fast-charging battery packs. The PowerPack 20K Pro offers the highest power output of any PowerPack ever. No matter where you go, the PowerPack 20K Pro will make sure your phone or laptop stays charged. You will no longer have to constantly search for an open power outlet. You no longer have to be stuck in an awkward position while trying to charge and use your phone at the same time. You can lie comfortably in bed and watch hours of movies on your laptop. Or you can explore the world and always have enough power to stay connected to your friends and family. Whether you are an avid gamer or a business person always on the go, the PowerPack 20K will ensure you stay charged wherever you go, whenever.

NOTE: When traveling by plane, FAA regulations require you to store your portable charger in your carry-on luggage, NOT checked-in luggage.


Compatible Devices


MacBook Pro (2016 and newer)
MacBook Air (2018)
Dell XPS 13 (9370), Dell XPS 15 (9560), Dell XPS 13 (9350)
Lenovo ThinkPad A485, Lenovo ThinkPad 13 20GJ003ETW, Lenovo Yoga 920-13IKB 80Y7, Lenovo ThinkPad X1 Yoga (2nd Gen) TP00076C, Lenovo T470 ThinkPad X1 Yoga 3rd, Lenovo T570


iPad Pro 10.5 (Lightning port)
Microsoft Surface Go, Microsoft Surface Book 2 13.5″ 1832, Microsoft Surface Book 2 15″ 1793

Phones: Most smartphones on the market

Long list of compatible devices, too many to list on one page. Please inquire about device compatibility.


Spend Less Time Charging

2 USB-A output ports (left and right in image) that are capable of Quick Charge 3.0.
1 USB-C input/output port (center in image) that supports Power Delivery 3.0. Provides lightning fast charging for Thunderbolt 3 laptops, Nintendo Switch, and more.
Fast Recharging: USB-C port also functions as an input, so recharging the PowerPack is both simple and fast. Recharge from 0% to full capacity in 3 hrs via 45W USB PD power adapter, 5.5 hrs via 18W QC enabled plug, or 9.3 hrs via 10/12W iPad plug.
With every purchase, you get high-quality ZMI USB-C to USB-C and USB-C to USB-A cables that will ensure you get the fastest charging speeds possible with this unit.

Hub modeHub mode



Safeguards against

Input overvoltage/reverse-voltage
Output overvoltage/overcurrent
Battery overcharge/overdischarge


FCC, SGS NA Listed, BC

Portable Office

With the PowerPack 20K Pro, you get 2 devices in 1. Not only a backup battery, the PowerPack is also a USB Hub through its USB-A ports. Need to connect a mouse or external flash drive to your laptop? Turn on USB Hub mode. In addition, the USB Hub mode provides low power charging for powering your smaller devices with a smaller charging current. These may include smart watches, Bluetooth headphones, fitness trackers, and other wearables.

20-inch USB-C to USB-C Cable Included?



12-inch USB-C to USB-A Cable Included?



1.5-meter USB-C to USB-C Cable Included?



Wall Charger Included?



Travel Pouch



Cell Capacity

20,000mAh @ 3.6V, 72Wh

20,000mAh @ 3.6V, 72Wh

Size of Battery Pack

6.31Ɨ3.22Ɨ0.83 in

6.31Ɨ3.22Ɨ0.83 in

Weight of Battery Pack

15.52 oz

15.52 oz

Primary Usage

For compatible models of phones, tablets & USB-C laptops

For compatible models of phones, tablets & USB-C laptops

Max Wattage via USB-C

65W (requires E-mark cable)

65W (requires E-mark cable)

USB-C (when used alone) supports USB PD 3.0 at 65W. PDO: 5VšŒ‚3A, 9VšŒ‚3A, 12VšŒ‚3A, 15VšŒ‚3A, 20VšŒ‚3.25A. PPS: 5V-11VšŒ‚4A, 5V-20VšŒ‚3A. USB-C (when used simultaneously with USB-A ports) supports USB PD 3.0 at 45W. PDO: 5-15VšŒ‚3A 20VšŒ‚2.25A. PPS: 5-11VšŒ‚4A, 5-20VšŒ‚2.25A
Either USB-A (used while the other USB-A port unplugged) supports QC 3.0 with 5VšŒ‚2.4A 9VšŒ‚2A 12VšŒ‚1.5A (18W max)
Both USB-A ports (when used at the same time) deliver a combined 3A at 5V (15W total)
IN THE BOX: 1Ɨ PowerPack 20K Pro power bank, 1Ɨ 20-inch USB-C to USB-C cable with E-Mark (rated for 100W/5A), 1Ɨ 12-inch USB-C to USB-A cable, 1Ɨ travel pouch, User Guide, Thank You card, 18-month warranty, US-based tech support

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