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ZMI 20k Power Bank QB820
Anker PowerCore 10000 PD
See Top Ranked USB-C Battery Packs

ZMI USB-C PD Backup Battery Packs (2017) vs Anker PowerCore USB-C Battery Packs With PD (2019)

Analysis:

Both the ZMI 20k Power Bank QB820 and the Anker PowerCore 10000 PD are great USB-C Battery Packs for people that are willing to spend around $50; it's impossible to go wrong with either option.

No sources that do their own in-depth testing have considered the ZMI 20k Power Bank QB820 to be a good enough purchase for it to earn a sport in their USB-C Battery Pack roundups, which is typically a bad sign.

As for the Anker PowerCore 10000 PD, it wasn't able to earn a top spot in any roundups from trusted sources that conduct their own hands-on testing. Nevertheless, it managed to impress reviewers at Android Central, Wirecutter, Wirecutter (NYTimes), and Laptop Mag enough to make it onto their respective shortlists.

We also wanted to do a direct ZMI 20k Power Bank QB820 vs. Anker PowerCore 10000 PD review performance comparison, but we, unfortunately, weren't able to find any ZMI 20k Power Bank QB820 review scores.

Finally, we compared the Anker PowerCore 10000 PD to other USB-C Battery Packs on the market and found that it did much better than its competitors - its review average of 9.6 out of 10 points is considerably higher than the 7.8 review average of USB-C Battery Packs in general.

Comparison of expert ratings
Highly Recommended
Recommended
Mentioned
Not Mentioned
Wirecutter (NYTimes)
Wirecutter
Laptop Mag
Macworld
Techradar
Reviewed
Android Central
Charger Harbor
Lifewire
T3
Tech. Specs Comparison
ZMI 20k Power Bank QB820
$68
Anker PowerCore 10000 PD
$44
Significantly higher than average expert review score
7.9
Overall Avg. for USB-C Battery Packs
9.4
Avg. Review Score
Score
Significantly higher than average expert review score
7.9
Overall Avg. for USB-C Battery Packs
9.6
Avg. Review Score
Score
Highly recommended by trusted experts
Wirecutter (NYTimes)
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Overall
in “The Top 10 Tools to Handle a Power Outage” 
Last updated: 15 days ago
Wirecutter
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Overall
in “The Top 10 Tools to Handle a Power Outage” 
Last updated: 15 days ago
Reviewed
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Ranked #3 out of 9
in “The Best Power Banks for Laptops and Tablets of 2020” 
Last updated: 22 Nov 2019
Techradar
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Ranked #4 out of 9
in “Best portable laptop battery chargers and power banks in 2020” 
Last updated: 4 May 2020
Wirecutter
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Overall
in “The Best Emergency Preparedness Supplies” 
Last updated: 13 Mar 2020
Wirecutter (NYTimes)
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Overall
in “The Best Emergency Preparedness Supplies” 
Last updated: 13 Mar 2020
Wirecutter (NYTimes)
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Overall
in “The Best Nintendo Switch and Switch Lite Accessories” 
Last updated: 3 Mar 2020
Wirecutter
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Overall
in “The Best Nintendo Switch and Switch Lite Accessories” 
Last updated: 3 Mar 2020
Wirecutter (NYTimes)
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Overall
in “The Best USB Power Banks for Laptops” 
Last updated: 13 Feb 2020
Wirecutter
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Overall
in “The Best USB Power Banks for Laptops” 
Last updated: 13 Feb 2020
Recommended by trusted experts
Wirecutter
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Mentioned
in “The Best Portable Chargers and Power Banks for Phones and Tablets” 
Last updated: 17 days ago
Wirecutter (NYTimes)
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Mentioned
in “The Best Portable Chargers and Power Banks for Phones and Tablets” 
Last updated: 17 days ago
Android Central
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Mentioned
in “Best Pixel 4 Accessories in 2020” 
Last updated: 6 May 2020
Android Central
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Mentioned
in “Best OnePlus 7 Pro Accessories in 2020” 
Last updated: 11 Jan 2020
Android Central
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Mentioned
in “Best USB-C Portable Battery Power Packs in 2020” 
Last updated: 11 Jan 2020

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