REASONS TO BUY
Can charge multiple devices
Decent overall battery capacity
REASONS TO AVOID
Not the most portable size
Pricey
Anker PowerCore Essential 20000 Review
This bulky battery pack failed to impress and is a bit on the pricey side
By David Wise ⋅ Senior Review Editor ⋅ March 7, 2022
Contributions From: Austin Palmer
Our Verdict
Unfortunately, the Anker PowerCore Essential 20000 scored quite close to the bottom of the pack in our overall ranking of portable chargers. We didn't find this charging product particularly convenient to use or all that portable. It can charge two devices simultaneously, but lacks many of the other features and functions present in today's best models. It is also slow to recharge and is on the pricier end of the spectrum compared to the other contenders.
Our Analysis and Test Results
Two semi-unique features about this charging device are its selection of colors and its input port. This battery is available in both a textured black and white finish, while most other portable chargers seem to be available just in black. It also gives you the option of charging via a USB-C cable or micro USB — handy if your phone has switched to USB-C and you want to cut down on your clutter of charging cables.
All in all, this wasn't the most impressive portable charger in our books.
Credit: Jason Peters
Portability
The Anker PowerCore Essential is on the heftier side, leading to a lackluster score in this metric. It tips the scale at just shy of a pound — approximately 14.3 ounces, significantly above average, and a bit heavy to carry in a pocket.
This battery is also fairly large, with a footprint of 6.19 inches by 2.89 inches and a thickness of 0.8 inches. This can make it a bit cumbersome to carry around in a pocket, especially when seated. It feels quite a bit larger than a smartphone and is noticeably less comfortable to carry than a smaller 10,000 milliamp-hour model, making the PowerCore Essential more suited for carrying in a backpack or purse.
The Essential is noticeably thicker than many other chargers.
Credit: Jason Peters
Charging Efficiency
This battery pack has a claimed capacity of 20,000 milliamp-hours (mAh), but we could only get around 67% of that or 13,416 milliamp-hours of this with our simulated load set to pull 2.4 amps of current. In our experience with these products, this is typical.
This larger-capacity charger is great if you want enough juice for a handful of phone charges.
Credit: Jason Peters
The PowerCore Essential did a bit worse in regards to claimed device charges. Anker states that this battery should be able to charge a Samsung S10 close to five full times, which converts to around 5.67 times for its predecessor, the Samsung S8 — our test device. However, we were only able to charge this smartphone a bit more than five times before the battery was fully depleted.
Added Convenience
The PowerCore Essential is a bit bare-bones compared to some of the more featured batteries. This battery bank can charge two different devices at once with its dual USB-A output ports, but that is about it for convenience features.
The Essential includes a handy carrying bag.
Credit: Jason Peters
We like the dual inputs — micro USB and USB-C — but feel it would be a bit more beneficial if you could use the USB-C as an output port to fast charge devices using the newer Power Delivery protocol. There are no integrated cables for devices or plugs for recharging, and it doesn't have a flashlight function.
Recharge Time
This battery took around 12 hours to recharge using our standardized setup. Anker states that it should be able to recharge in approximately 10.5 hours with a 10W charging brick and 20 hours with a 5W brick.
This charger took a very long time to recharge in our experience.
Credit: Jason Peters
Should You Buy the Anker PowerCore Essential 20000?
Though we generally like Anker products, the PowerCore Essential is far from the best battery bank, in our opinion, and we would recommend other products over this one. It isn't terribly impressive when it comes to portability or convenience features, and takes a long time to recharge. Other options that cost the same or less perform much more favorably in our tests.
What Other Portable Chargers Should You Consider?
If you want a heavy-duty charger than can handle devices like laptops, the Anker PowerCore+ 26800 PD is a great option. For something a bit more budget friendly but still high-performing, check out the INIU Portable Charger 10000 or 2-Pack Miady 10000. If you want a do-it-all device that has integrated cables, the Q Slim Power Bank Pro 10000 mAh is your charger.
—David Wise and Austin Palmer
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