Anker Powercore Slim III 10,000mA... 7.0 RATING POWERUP
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Anker Powercore Slim III 10,000mAh PD (A1231) – Review

7.0

SCORE

They may not be disrupting the portable charger market, but the Anker PowerCore Slim III is a great daily carry power bank.


OVERVIEW

Performance + Capacity 6.5
Design 7.5
Recharge Time 6.5
Value for Money

POSITIVES

  • Pocket friendly slim form factor
  • Sleek design
  • Anker customer support
  • 18W max output
  • Well priced

NEGATIVES

  • Poor capacity at 18w output
  • Support for few fast charge protocols

BOTTOM LINE

The Anker Powercore Slim 10 000 PD is a compelling enough purchase for individuals always ‘on the go’ and are constantly in need of a light, slim, and pocketable Every Day Carry (EDC) to power their devices throughout the day. It offers a great combination of fast charging modes like Power Delivery, PowerIQ which is further assisted by VoltageBoost, and trickle charging. Despite its efficiency at lower watt outputs than higher ones, this Anker power bank does its job relatively well when used to charge the following gadgets: Apple and Android phones, tablets, and wireless headphones and/or earphones.

7.0

SCORE
Power Up
Rating

TECH SPECS:

Rated mAh capacity: 10 000
Rated WH (Watt-hour): 37.0
USB-A Output: 5V = 2.4A
USB-C Outputs: 5V = 3A, 9V = 2A, 15V = 1.2A
Max Output USB-C in Watts: 18
Max Output Total: 18
USB-C Input (PD, or Power Delivery): DC 5V = 3A, 9V = 2A, 15V = 1.2A

Table of Contents

The Anker Powercore Slim 10 000 PD is one of the most popular power banks on the market, and for good reason: it serves as a fairly priced, efficient every day carry for individuals ‘on the go’; with a great combination of fast charging modes, capacity and max output. This A1231 model has 10 000 mAh, capable of 18 watts of output, with color variation kept at a minimal matte black and matte black with fabric top side (there is the Anker Powercore Senese, which seems to be the same product; only, it is available in red and blue and with $20 added to the price tag). The draw factor of the Anker Powercore Slim 10 000 PD, though? It is light and slim -- just the way most pockets like it! With the way most gadget developments go these days, however, batteries do not last as long as we want them to. Anker, on the other hand, boasts efficient fast charging protocols for this model. Here at Power Up, we test to see the actual capacity of the Anker Powercore Slim 10 000 PD.

FIRST IMPRESSION

C00112.00_00_08_05.Still002 With devices like these, you fall in love with the minimalist aesthetic it delivers: sleek matte finish, cool-blue LED lights, and comfortably snug to feel like a warm hand (if you don’t have one to hold) against your own. Do I dare say the Anker PowerCore Slim 10 000 PD also highlights a fabric top side? This way, it sports a different look and textured feel against any other power banks in its category. Unboxing the unit, the Anker PowerCore Slim 10 000 PD comes wrapped in a thin plastic sheet to prevent scratch marks. The power bank comes with an instruction manual, a USB-C cable of decent length, and a black travel pouch with blue strings to carry the device in. C00112.00_00_48_28.Still007 The power bank weighs 220 grams, with dimensions 149.5 x 68.5 x 14.5 mm. As for manufacturer details, these are listed below: Rated mAh capacity: 10 000
  • Rated WH (Watt-hour): 37.0
  • USB-A Output: 5V = 2.4A
  • USB-C Outputs: 5V = 3A, 9V = 2A, 15V = 1.2A
  • Max Output USB-C in Watts: 18
  • Max Output Total: 18
  • USB-C Input (PD, or Power Delivery): DC 5V = 3A, 9V = 2A, 15V = 1.2A

CHARGE CAPABILITIES

DSC00488-scaled The PowerCore Slim utilises the main fast charging protocols Power Delivery (PD). Not tech-savvy, in the slightest? Power Delivery (PD) is a highly powered specification that acts as fast charging technology to quickly power a myriad of devices connected to, as in the context of Anker, power banks via a USB-C charging cable. The PowerCore Slim is also capable of dual output, allowing devices to charge simultaneously.
C00112.00_00_05_17.Still005
Five small LEDs serve as the battery indicator
Additionally, the A1231 model, commonly known as the Anker PowerCore Slim 10 000 PD, supports a special charge variant known as the PowerIQ-enabled USB-A port. This boasts instant identification of any device connected to the Anker PowerCore Slim 10 000 and then matches the said device’s maximum amperage to charge it as efficiently as possible. The PowerIQ feature is further assisted by VoltageBoost, another Anker variant that offers smooth and stable voltage output. Trickle charging, an extra feature of the PowerCore Slim 10 000 PD, allows devices to remain fully charged due in part to its ability to produce the same charge rate equal to the device’s self discharge rate. If you’re the kind of person to be bothered by the 99% battery rate flashing on the corner of your phone screen like me, then you will relish in the trickle charging mode that this Anker power bank offers and supports. Additionally, the trickle charging mode is also useful for small and/or low power devices without the risk of overcharging. These low power devices could be your wireless headphones or earbuds, among other gadgets. PD is the most wildly used fast charge protocols and as such, you should be able to charge all phones through the USB-C port. However since this power bank only supports PD. Some of the faster charging devices may not charge as fast as possible with the Anker PowerCore Slim.

ANKER POWERCORE SLIM 10000 PD CAPACITY AND PERFORMANCE (TESTED)

As mentioned previously, we test to see the actual capacity of the Anker PowerCore Slim 10,000 PD under fast charging load. Our testing process tracks the efficiency and capacity of a fully charged power bank under various different power loads. Here at Power Up, we gauge the drops in performance of the Anker PowerCore Slim 10,000 PD as we increase the demand on the power bank. As was indicated in the manufacturer details and parameter information at the back of the power bank, the Anker PowerCore Slim 10,000 PD is capable of 37 watt hours of power. First, we tested the efficiency of the power bank at 5W, or 5V and 1A, of output:
DSC00489-scaled
Testing the Anker PowerCoreSlim’s 5W capacity
With this, the Anker Powercore Slim 10,000 PD is capable of 6895 milliamp hours or 34.47 watt hours of power. This means that under the fast charging load of 5 watts, the power bank performs at a stable efficiency of 93.16%. Our verdict? It is safe to say that even at 5 watts of output, an efficiency of 93.16% belongs to the upper echelon of power banks in the market. Second, we tested the efficiency of the power bank at 9W, or 9V and 1A, of output: C00112.00_00_10_05.Still011 This time, the Anker PowerCore Slim 10 000 PD is capable of 6474 milliamp hours or 32.70 watt hours of power. This means that under the fast charging load of 9 watts, the power bank performs at an efficiency of 88.38%. To this revelation, we say: it’s not too bad, considering that this is pretty much in line with one’s expectations when it comes to power banks of this tier.
At this point, we do believe that perhaps, the Anker PowerCore Slim 10 000 PD may be an essential daily driver for individuals whose devices are not too high maintenance. Finally, as with every test, the Anker PowerCore Slim 10,000 PD faces the final boss: a maximum 18W, or 9V and 2A, of output. C00112.00_00_14_11.Still003 Against max watt output, however, the Anker PowerCore Slim 10000 PD falls short at 17.57 watt hours of power. This means that under the fast charging load of 18 watts, the power bank performs at a disappointing efficiency of 47.49%. This is less than half of the internal capacity of the device.
Despite the power bank’s horrible efficiency at 18 watts of output, most phones are not going to charge at their full fast charging capacity for the entire duration when plugged in anyway. The full fast charging capacity of your gadget, after all, is reserved for a short period of time at the beginning of the charge cycle. After that, your gadget will settle down to drawing low wattages to power it -- which, as we have tested earlier, the Anker PowerCore Slim 10000 PD has great efficiency at. Finally, we answer the question you’ve all been looking for (so much so that you’ve probably skimmed through this entire article to find):

SHOULD YOU BUY THE ANKER POWERCORE SLIM 10000 PD?

If you are an iPhone, Pixel or one of the more common smartphones out there that utilises PD fast charging, then Anker PowerCore Slim is a great phone backup battery for you. If however you have an android phone with a proprietary charging standard (Oneplus, Huawei and the more recent Samsungs come to mind), then this Power bank will likely not be able to charge you phone at the 18W max and there will be a better alternative out there for you. To summarise, this Anker power bank is definitely a good value purchase for individuals looking for pocket (and wallet!) friendly back-up devices that are light, slim, and aesthetically pleasing for its capacity. It offers three fast charging protocols, namely: Power Delivery (PD), PowerIQ (and further assisted by VoltageBoost), and trickle charging. The Anker PowerCore Slim 10000 PD is most efficient at lower watt outputs, and best as support for the following gadgets: Apple and google phones and wireless headphones and/or earphones. asdf

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