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Anker PowerCore Slim 10000 Review

This basic option is a great choice if you want a highly portable charger and don't care about other features
Anker PowerCore Slim 10000
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Price:   $22 List | $21.99 at Amazon
Pros:  Inexpensive, small and portable design
Cons:  Limited additional features
Manufacturer:   Anker
By David Wise and Austin Palmer  ⋅  Sep 20, 2021
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60
OVERALL
SCORE


RANKED
#6 of 11
  • Portability - 40% 8
  • Charging Efficiency - 30% 5
  • Added Convenience - 20% 3
  • Recharge Time - 10% 7

Our Verdict

The Anker PowerCore Slim 1000 is a rather run-of-the-mill charger in our minds. It is relatively inexpensive and highly portable. However, we only found it to be just above average when it comes to battery capacity and recharge time. This charger is also a bit on the bare-bones side, without some of the added convenience features that are present on many of the top-tier products in our lineup. It's not our favorite by any means, but it will get your phone or other device recharged in a pinch.

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Pros Inexpensive, small and portable designInexpensive, super easy to carry in a pocket, short recharge timeLightweight and portable design, good battery capacity, inexpensiveGreat value, USB-C/microUSB charging input, dual outputsFairly compact given its capacity, available in multiple colors
Cons Limited additional featuresNo integrated cables, can only charge a single device at a timeNo integrated cablesTakes a long time to recharge, not the highest power outputNo integrated cables, only a single USB port
Bottom Line This basic option is a great choice if you want a highly portable charger and don't care about other featuresIf you want a bare-bones portable charging solution without breaking the bank, this is the battery for youIf you are looking for a battery bank with a larger capacity, then this is one of our favoritesIf you are searching for a great value, then we strongly recommend checking out this set of power packsThe PowerCore 10000 is a bare-bones charger that gets the job done but lacks any extra features to make it more convenient to use
Rating Categories Anker PowerCore Sli... Anker PowerCore 5000 INIU Portable Charg... 2-Pack Miady 10000 Anker PowerCore 10000
Portability (40%)
8.0
9.0
8.0
7.0
8.0
Charging Efficiency (30%)
5.0
6.0
6.0
6.0
5.0
Added Convenience (20%)
3.0
3.0
6.0
5.0
3.0
Recharge Time (10%)
7.0
10.0
6.0
4.0
7.0
Specs Anker PowerCore Sli... Anker PowerCore 5000 INIU Portable Charg... 2-Pack Miady 10000 Anker PowerCore 10000
Claimed Capacity 10,000 mAh 5,000 mAh 10,000 mAh 10,000 mAh 10,000 mAh
Dimensions 5.82" x 2.63" x 0.62" 4.20" x 1.30" 5.19" x 2.75" x 0.60" 5.49" x 2.64" x 0.63" 3.56" x 2.38" x 0.84"
Measured Weight 7.13 oz 4.71 oz 6.88 oz 7.69 oz 6.46 oz
Measured Charge Time 315 min. 150 min. 300 min. 405 min. 240 min.
Output 1 5V / 2.4A 5V / 2A DC5V / 3A(Max) 5V / 2.1A 5V / 2.4A
Output 2 N/A N/A DC5V / 3A(Max) 5V / 2.1A N/A
Output 3 N/A N/A DC5V / 3A(Max) N/A NA
Output 4 N/A N/A N/A N/A N/A
Input 5V / 2A 5V / 2A USB-C:
5V / 3A
Micro USB/USB-C: 5V/2A 5V / 2A
Model A1229 A1109 BI-B1 TPB21C A1263

Our Analysis and Test Results

Unfortunately, this portable battery pack isn't compatible with Qualcomm Quick Charge, so it might not be the best option if you are looking for fast charging capabilities on devices like a Samsung Galaxy phone.

Performance Comparison


The PowerCore Slim is one of the slimmer and more portable power...
The PowerCore Slim is one of the slimmer and more portable power packs.
Credit: Jason Peters

Portability


We started off by rating and ranking how portable the Anker PowerCore Slim 10000 is compared to the other battery packs we tested. We looked at the dimensions and weight of each battery, as well as how comfortable they are to carry around in a front or back pocket in a typical pair of pants. This charger — as the name suggests — is on the slim side, earning it a solid score in this set of tests.

This charger is on the lighter side, tipping the scales at just under half a pound — 7.13 ounces by our measurement, to be exact.


As mentioned above, this power bank is on the slimmer side at only 0.62 inches tall. It also has a fairly small footprint of 5.82 inches by 2.63 inches.

The ability to recharge via USB-C is very handy.
The ability to recharge via USB-C is very handy.
Credit: Jason Peters

This means that it is fairly comfortable to carry around in either a front or back pocket — usually less noticeable than a typical smartphone.

Charging Efficiency


Our next set of tests looked at the charging capacity and efficiency of each battery pack. We based scores for this metric on the number of times each battery could charge a device, namely a Samsung S8, and how many milliamps we could get out of each charger when using a dummy load set for different discharge rates, as measured by a digital multimeter. The Anker PowerSlim 10000 did decently well, earning a slightly above average score.

This battery did well in our device tests, slightly exceeding the manufacturer's claims. This battery charged our S8 2.49 times, with the manufacturer claiming that it could charge an iPhone 12 2.25 times, a Galaxy S20 1.6 times, and an iPad Mini 5 1.2 charges. This would correspond to charging an S8 2.11 times based on the different battery sizes.

We used the included micro USB cable for our recharging test.
We used the included micro USB cable for our recharging test.
Credit: Jason Peters

For the simulated loads, we started with a discharge rate of 2.4 amps. At this rate, it lasted for a little over 2.5 hours and output 6,269 milliamp-hours, or about 63% of the claimed 10,000 mAh capacity.

Added Convenience


Next, we scored and compared all the different extra features that these products have that make them a little more convenient to use. For this metric, we looked at how many devices you can charge at once, if there is a built-in flashlight, and if there are integrated cables or a recharging plug. Unfortunately, the Anker PowerSlim 10000 is fairly simple in design, so it scored below average in this test.

Everything included with the PowerCore Slim.
Everything included with the PowerCore Slim.
Credit: Jason Peters

This power bank only comes with a single output force, so you are limited to charging a single device at a time. It also doesn't have any integrated features, like a flashlight, cables, or wall plug, which contributes to its lackluster score.

Recharge Time


For our final metric, we timed how long it took each portable battery to recharge and based our scores on that. This battery charged a little faster than average, earning it another decent score.

This charger has a single USB output port and a microUSB or USB-C...
This charger has a single USB output port and a microUSB or USB-C port for recharging.
Credit: Jason Peters

The PowerSlim 10000 took around 5 hours and 15 minutes to completely recharge in our tests, with the average being closer to 6 hours.

Value


Overall, this battery is a decent value. It offers adequate charging performance at a low price tag, without any extra features.

Conclusion


While this portable charger is far from our favorite or the best you can get, in our opinion, it is a low-cost option for charging a single device. It doesn't have a lot of extra features, but we do like how portable it is. We wouldn't recommend this as your primary portable charger, but it's a great option to throw in a backpack or purse if you want to be sure you aren't ever caught with a dead smartphone — just don't forget to toss in some extra cables as well.

David Wise and Austin Palmer