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ZMI 20k Power Bank QB820
Anker PowerCore Fusion 5000
See Top Ranked USB-C Battery Packs

ZMI USB-C PD Backup Battery Packs (2017) vs Anker PowerCore Fusion 5000

Analysis:

The ZMI 20k Power Bank QB820 is a great USB-C Battery Pack for its $68 asking price.

The Anker PowerCore Fusion 5000, however, while a reasonable product for $25, doesn't stack up against its competitors quite as well. If you're considering USB-C Battery Packs in the $17 range, you might want to check out some better options.

The ZMI 20k Power Bank QB820 hasn't managed to get enough recognition from sources that do high-quality hands-on testing and therefore didn't make it into any relevant roundups. That, by itself, makes it difficult to recommend.

As for the Anker PowerCore Fusion 5000 - it was really well-received by reviewers at Wirecutter, a great source that's known for conducting high-quality in-depth testing. It performed great in its "The Best Portable Chargers and Power Banks for Phones and Tablets" roundup and was named its "Top Pick", which, on its own, makes it a product that warrants a closer look.

We also wanted to do a direct ZMI 20k Power Bank QB820 vs. Anker PowerCore Fusion 5000 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 Fusion 5000 to other USB-C Battery Packs on the market and found that it did much better than its competitors - its review average of 8.1 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
Techradar
Reviewed
Laptop Mag
The Verge
CNET
PCWorld
Charger Harbor
Lifewire
Macworld
Tech. Specs Comparison
ZMI 20k Power Bank QB820
$68
Anker PowerCore Fusion 5000
$25
Significantly higher than average expert review score
7.9
Overall Avg. for USB-C Battery Packs
9.4
Avg. Review Score
Score
Has average expert review score
7.9
Overall Avg. for USB-C Battery Packs
8.1
Avg. Review Score
Score
Recommended by trusted experts
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: 8 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: 25 days ago
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
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 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
Best Overall
in “The Best Portable Chargers and Power Banks for Phones and Tablets” 
Last updated: 10 days ago
Reviewed
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Ranked #10 out of 10
in “The Portable Best Battery Packs of 2020” 
Last updated: 1 Apr 2020
CNET
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Mentioned
in “Best portable chargers and power banks to buy for Android in 2020” 
Last updated: 11 Apr 2020
CNET
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Mentioned
in “The best back-to-school gadgets under $30” 
Last updated: 23 Aug 2019
Charger Harbor
Depth of
analysis
Yes
In-house
Testing
Mentioned
in “Best Anker Power Banks” 
Last updated: 4 Oct 2019
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