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Anker 20000Mah Portable Charger Powercore 20100 - Ultra High Capacity Power Bank with 4.8A Output, Poweriq Technology for iPhone, iPad & Samsung Galaxy & More (Black)

4.5 4.5 out of 5 stars 45,263 ratings

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Connector type micro usb,usb-c
Brand Anker
Battery capacity 20000 Milliamp Hours
Colour Black
Special feature Portable,Portable Charger,Travel

About this item

  • The Anker Advantage: Join the 20 million+ powered by our leading technology.
  • Ultra-high capacity: weighs as little as a can of soup (12. 5 oz.) yet charges the iPhone 8 almost seven times, the Galaxy S8 five times or the iPad Mini 4 twice.
  • High-Speed Charging: PowerIQ and Voltage Boost combine to deliver the fastest possible charge (does not support Qualcomm Quick Charge). Recharges itself in 10 hours with a 2 amp charger, phone chargers (generally 1 amp) may take up to 20 hours.
  • Certified safe: Anker MultiProtect safety system and high-quality LG battery cells ensure complete protection for you and your devices.
  • What you get: Anker power core 20100 portable charger, Micro USB cable, Travel Pouch, welcome guide, our fan-favorite 18-month and friendly customer service. Usb-c cable and Lightning cable for iPhone/ iPad sold separately.

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Product Information

Technical Details

Additional Information


Product Description

A1271

PowerCore 20100

A frontier in portable charging. PowerCore 20100 offers an unbelievable size to capacity ratio along with top-class charging speeds.

Thanks to Anker’s charging technology, you’ll wonder why you ever wasted time plugged in to the wall.

PowerCore

  • With faster charging, more advanced technology and even better portability.

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High-Speed Charging

PowerIQ and VoltageBoost combine to deliver a high-speed charge to a wide range of devices.

Perfectly Portable

Lighter than a can of soup, PowerCore fits easily inside backpacks, purses, or computer bags.

Highly Durable

Constructed with premium materials to keep you charging again and again.

Universal Compatibility

Designed for use with virtually any device that charges from a USB port.

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Customer reviews

4.5 out of 5 stars
4.5 out of 5
45,263 global ratings

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Customers say

Customers like the quality, charging, and value of the power bank. For example, they mention it's reliable, heavy duty, and holds charge as stated. Some appreciate the versatility and say it'll be useful for day trips and travel. That said, opinions are mixed on size.

AI-generated from the text of customer reviews

116 customers mention ‘Quality’107 positive9 negative

Customers are satisfied with the quality of the power bank. They mention it's reliable, heavy duty, and works well. Some say that it lasts for weeks without needing to be recharged. Overall, most are happy with the performance and power of the product.

"Powerful charger for when we are travelling." Read more

"...everything else is you are looking for this capacity, it just works very well and has the electronic protection built in to keep your expensive..." Read more

"...The protective fabric sleeve with draw-string closer is great for storing the charging cables in and keeping the cable in place when it is plugged in..." Read more

"...It charges my Galaxy s10 pretty fast and without any problems. Definitely charge this power bank overnight." Read more

70 customers mention ‘Charging’54 positive16 negative

Customers like the charging of the power bank. For example, they say it charges their phone over and over again, has great charging capacity, and holds charge as stated. Some mention it's very portable and charges all their equipment overnight.

"...I use it to charge a phone and GoPro, it seems to keep going for ages. It’s a little heavier than others but with a lot more capacity...." Read more

"...Very large charge, comes in a lovely box, a micro to usb-A cable and a nice little mesh bag to pop your battery pack in...." Read more

"This charges my phone over and over again without needing to be charged...." Read more

"...Could use a faster charging option. I have some problems charging products with low power requirements...." Read more

36 customers mention ‘Value’33 positive3 negative

Customers appreciate the value of the power bank. They say it's a great tech investment and has a nice look.

"It’s not pricy when in special. A bit heavy when carrying around." Read more

"...bank for a few months now and I can't safely say its definitely worth the price...." Read more

"...This was on sale for a good price and decided it was too good to pass up. Happy with purchase and definitely trust the Anker brand." Read more

"...Over 8 hours plus took photos and videos during the day.Best tech investment if you want or need your phone charged for the day." Read more

32 customers mention ‘Versatility’32 positive0 negative

Customers find the power bank very useful for day trips and holidays. They say it's a great portable charger and power pack that's perfect for their needs. Customers also say it’s brilliant for use at home or when holidaying in the caravan.

"...than some other brands I've seen and own making them pretty good for taking with you when travelling without being too bulky." Read more

"I’ve had this for two years now. It’s a portable charger and works as such...." Read more

"It’s a great unit for charging a tablet. Well able to keep ahead of the discharge rate while using it." Read more

"I use this charger all the time. It is incredibly handy when you are on a long trip or camping. I also use it on long train trips...." Read more

9 customers mention ‘Appearance’9 positive0 negative

Customers are satisfied with the appearance of the power bank. They mention that it's sleek, has a neat mesh bag, and has nifty soft case to protect it from knocks.

"...charge, comes in a lovely box, a micro to usb-A cable and a nice little mesh bag to pop your battery pack in...." Read more

"Good design, not as heavy as I thought it would be so can be carried in my bag if necessary. Took 6 hours for initial charge which is fine...." Read more

"Sleek unit. Packs a good deal of power and lasts for ages. I can get 5 charges for my phone note 20 ultra or tablet out it." Read more

"Just got it and it weights way less than I assumed. It has a nice design and feels nice in the hand...." Read more

9 customers mention ‘Bag’9 positive0 negative

Customers are satisfied with the bag that is included with the power bank. They mention that it is a lovely carry case and a small protective bag. Some appreciate the indicator lights.

"...It’s black, has capacity indicator lights, and comes with a small protective bag and a short charging cable...." Read more

"...Very large charge, comes in a lovely box, a micro to usb-A cable and a nice little mesh bag to pop your battery pack in...." Read more

"...Love that it comes with a nice padded mesh bag to hold the powerbank and can fit a cable in it too...." Read more

"...It's nice that it came with a small mesh case for travel." Read more

78 customers mention ‘Size’48 positive30 negative

Customers are mixed about the size of the power bank. Some mention it's great for travelling, small enough to carry in a briefcase, and convenient. They say it'll fit into the side pocket of a backpack or even a pocket. However, some customers find it a little heavy and cumbersome.

"...It’s black, has capacity indicator lights, and comes with a small protective bag and a short charging cable...." Read more

"...Convenient size and shape means it can slip into the side pocket of a backpack or overcoat pocket no problem...." Read more

"It’s not pricy when in special. A bit heavy when carrying around." Read more

"...It is heavy by compact so you can put it in your backpack easily...." Read more

5 stars for product quality, 1 star for accurate description (weighs 366g not 100g)
3 out of 5 stars
5 stars for product quality, 1 star for accurate description (weighs 366g not 100g)
I bought this thinking it would be a nice, low-weight powerbank option to my other Anker powerbank (383g) - this one is claimed to weigh as little as 100g. Thing is, it weighs another 2.5 times as much as that!!! It does the job, but not as light as claimed.
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Top reviews from Australia

Reviewed in Australia on 26 May 2024
Verified Purchase
Powerful charger for when we are travelling.
Reviewed in Australia on 4 April 2021
Verified Purchase
I was looking for this model at a decent price over a year ago, this was a lot cheaper than when I was previously looking.
In as far as functionality and looks, it’s a power bank, gosh. I use it to charge a phone and GoPro, it seems to keep going for ages. It’s a little heavier than others but with a lot more capacity. It’s black, has capacity indicator lights, and comes with a small protective bag and a short charging cable.
I hope this was the least helpful review you’ve ever read.
2 people found this helpful
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Reviewed in Australia on 24 February 2023
Verified Purchase
Being a 20000Mah power bank they are on the larger side but still quite a bit smaller than some other brands I've seen and own making them pretty good for taking with you when travelling without being too bulky.
Reviewed in Australia on 11 December 2021
Verified Purchase
It’s not pricy when in special. A bit heavy when carrying around.
Reviewed in Australia on 20 March 2021
Verified Purchase
This is my favourite powerbank for extended hiking trips over multiple days. It's on the larger size but that's by design; you get 20,000Mah from this brick! The fast charge work very well with my Samsung Note 20 Ultra and I charged my phone 4 times (not from completely flat), headlamp 4 times, GPS twice and still had around 25% charge remaining. This is overkill for most trips but if you have some space for a bit of extra weight in your pack and you have products that need power, this powerbank will definitely have you covered. I would recommend this powerbank over everything else is you are looking for this capacity, it just works very well and has the electronic protection built in to keep your expensive electronics safe while charging them.
2 people found this helpful
Report
Reviewed in Australia on 11 December 2019
Verified Purchase
Used this on a recent trip to Japan where both are phones were being hammered constantly using Maps and Translate. Charging two phones at once and quick charge output was a life saver! Convenient size and shape means it can slip into the side pocket of a backpack or overcoat pocket no problem. The protective fabric sleeve with draw-string closer is great for storing the charging cables in and keeping the cable in place when it is plugged in. Could not fault it!
3 people found this helpful
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Reviewed in Australia on 15 April 2022
Verified Purchase
It is abit heavy but its always good to have it for travelling. Given that alot of newer devices have type (C)to type (C) ports including the charging devices, you need to remember to pack a type (A) to type (C) cable for this power bank.
Reviewed in Australia on 18 December 2019
Verified Purchase
I've been using this power bank for a few months now and I can't safely say its definitely worth the price.

Very large charge, comes in a lovely box, a micro to usb-A cable and a nice little mesh bag to pop your battery pack in.

It charges my Galaxy s10 pretty fast and without any problems. Definitely charge this power bank overnight.

Top reviews from other countries

Translate all reviews to English
bader
5.0 out of 5 stars رايع
Reviewed in Saudi Arabia on 11 July 2024
Verified Purchase
ممتاز
Daniel
5.0 out of 5 stars Will not fast charge anymore after 3+ months (updated below)
Reviewed in the United States on 25 June 2018
Verified Purchase
I've had this charger for about 4 months now. I'm not using it every day but would say 4 to 5 days a week it gets pulled out. Usually when I'm traveling away from the office for the day. I do really like the capacity. I can charge my s7 a good 4 times before the pack is empty. Number of times it charges my phone really does vary based on the initial charge the phone started with say 30% vs 2% and my usage during the charging period. Over all I'm happy with it at this point but a do have a disappointment. My problem with my pack at this point is the lifespan it looks like this product may have. I will generally just plug it into my computer to recharge the pack. Over the last few weeks I've noticed that the charger has taken a lot longer to charge my phone than before. So I did a few more tests and it appears the unit no longer fast charges my phone. It still does a slow charge but since I upgraded phones a few rounds back and moved to phones that fast charge a old "slow" charge is really slow. Almost to the point that it is no longer worth using this charger unless as a last resort. So yes it can still charge the phone but no longer does a fast charge. I've even taken my phone cable that plugs into my AC adapter and fast charges my phone and used that cord on the power pack to make sure it wasn't the cord but same cord iin the AC wall adapter fast charges but in the power pack slow charges.

Pros:
-Worked well for the first 3 1/2 months.
-Good number of recharges from the unit.
-Like the case it comes with.
-lights on the side showing capacity left.

Cons:
-No longer fast charges

So If you are looking for a decent phone battery pack this does a good job and seems well built. Maybe I just had a defect issue in mine. But at this point as I get shopping for a new one sometime soon I'll probably be looking at a different brand hoping for a longer lasting product.

*Update:*
So I have been in contact with Anker costumer service and can say they do have very good and helpful service. They gave me some directions to test the product to confirm it was not functioning like it should. After I did these tests they went ahead and sent a replacement charger right out to me. And instead of sending me the exact same one they sent me and updated version which works really well. I can say I'm back to charging the phone quickly on the new charger. Last time I charged my S7 it went from 3% to 100% in just over an hour and some mins. I didn't use it a ton during the charge but that is very much in the expected range for my quick charging expectations.

As I work with a lot of technology in my job I can say that things do break at times. It is hard for every product that comes off a line to work perfectly. The warranty and costumer services is far and away above what I expected to find on this product. These are the types of companies I seek to continue to buy products from at work when I find one with good costumer service. If you are debating between this product and another brand I would definitely get the Anker product if only for the costumer service even if I had to pay a little bit more.
11 people found this helpful
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juan lópez
5.0 out of 5 stars excelente producto
Reviewed in Mexico on 7 February 2024
Verified Purchase
retiene muy bien la carga
Josh Levinson
5.0 out of 5 stars Excellent portable charger when Quickcharge and travelling ultra light are not important
Reviewed in Canada on 22 June 2016
Verified Purchase
As an avid nature photographer, I often find myself off the grid, with no or limited access to power sources for charging my phone, camera, and other portable electronic devices. A friend of mine recommended the Anker portable charging devices, so I decided to give them a try. Here I will review the PowerCore 20100.

PACKAGING: I’m not usually one to care about how a product is packaged (as long it isn’t damaged in transit) - but I have to say, Anker has done a superb job packaging this thing. Maybe not quite at the Apple level, but not too far from it. As soon as you open the box, you get the impression this is a premium product.

BUILD QUALITY: I’m extremely impressed with the build quality of this product, especially given its very reasonable (dare I say low) price. It feels very dense and solid, while not being unreasonably heavy. At 358 g + 10 g (pouch) + 14 g (cable), this may be getting a bit heavy for hiking/backpacking trips, but is quite lightweight for just about anything else (car/plane travel, car camping, etc.). Speaking of the pouch, this is probably the best soft carrying pouch I’ve ever seen included with an electronics product. It’s made of a nice lightweight mesh, which is lined internally with a thin foam padding that gives added protection against bumps and drops. The USB A ports seem to be of really nice quality, and have a great feel to them when you insert a USB plug into them. This model has two USB ports, allowing charging of 2 devices (at up to 2.4A each) simultaneously - this is a very nice feature to save time when multiple devices need to be charged. The device has a small 4-light LED indicator that provides information on the current charge level, which is very useful for knowing how much juice is left in the battery pack. While not charging or being charged, pressing a small button on the side of the device will activate the LED indicator. The only minor complaint I have is that plugging a cable into the micro USB port is a little more resistant and finicky than I’d like.

CHARGING: When using this device to charge my Samsung Galaxy S7 Edge (3600 mAh battery), I get an average charging rate of about 1.3 minutes per % (so about 130 min. to fully charge the phone). This rate is similar to what I get from standard (non-fast charge) 2A wall chargers. The PowerCore has the capacity to fully charge the phone just under 4 times, which is expected given the 60-70% efficiency quoted by Anker on their website. In terms of how long it takes to recharge the PowerCore itself, it takes about 11.5 hours to go from empty to full (using a 2A USB charger). One nice feature to point out is that there is no on/off switch - when you plug in a device, it starts charging, and when you unplug it, it stops. So no need to worry about forgetting to turn the charger on or off.

PROS:
- Very well built, and seemingly durable
- Reasonable weight, given the charge capacity
- Good length micro USB cable and excellent quality carrying/storage pouch included
- Charge level indicator
- Charges devices at a good rate
- Does not need to be switched on/off

CONS:
- Time to recharge the PowerCore 20100 is somewhat on the long side, making things a bit tricky. For example, if you wanted to charge overnight, you’d need to start it charging a couple of hours before going to bed, and leave it charging for a couple more hours after waking up - this is a bit awkward.

CONCLUSION: Overall, I’m very impressed with this product. It appears to be a high quality product that offers a great set of features. No, it doesn’t have Quickcharge capability (either for charging or for being charged), but given its low price, it offers excellent value. Unless Quickcharge is important to you, I would highly recommend this battery pack to people looking for a super convenient way to charge their electronic devices while travelling.

PICTURES: Among the attached pictures, I’ve included one of the PowerCore 20100 beside a credit card, and another of it beside the PowerCore 10000, to give a relative sense of size.
Customer image
Josh Levinson
5.0 out of 5 stars Excellent portable charger when Quickcharge and travelling ultra light are not important
Reviewed in Canada on 22 June 2016
As an avid nature photographer, I often find myself off the grid, with no or limited access to power sources for charging my phone, camera, and other portable electronic devices. A friend of mine recommended the Anker portable charging devices, so I decided to give them a try. Here I will review the PowerCore 20100.

PACKAGING: I’m not usually one to care about how a product is packaged (as long it isn’t damaged in transit) - but I have to say, Anker has done a superb job packaging this thing. Maybe not quite at the Apple level, but not too far from it. As soon as you open the box, you get the impression this is a premium product.

BUILD QUALITY: I’m extremely impressed with the build quality of this product, especially given its very reasonable (dare I say low) price. It feels very dense and solid, while not being unreasonably heavy. At 358 g + 10 g (pouch) + 14 g (cable), this may be getting a bit heavy for hiking/backpacking trips, but is quite lightweight for just about anything else (car/plane travel, car camping, etc.). Speaking of the pouch, this is probably the best soft carrying pouch I’ve ever seen included with an electronics product. It’s made of a nice lightweight mesh, which is lined internally with a thin foam padding that gives added protection against bumps and drops. The USB A ports seem to be of really nice quality, and have a great feel to them when you insert a USB plug into them. This model has two USB ports, allowing charging of 2 devices (at up to 2.4A each) simultaneously - this is a very nice feature to save time when multiple devices need to be charged. The device has a small 4-light LED indicator that provides information on the current charge level, which is very useful for knowing how much juice is left in the battery pack. While not charging or being charged, pressing a small button on the side of the device will activate the LED indicator. The only minor complaint I have is that plugging a cable into the micro USB port is a little more resistant and finicky than I’d like.

CHARGING: When using this device to charge my Samsung Galaxy S7 Edge (3600 mAh battery), I get an average charging rate of about 1.3 minutes per % (so about 130 min. to fully charge the phone). This rate is similar to what I get from standard (non-fast charge) 2A wall chargers. The PowerCore has the capacity to fully charge the phone just under 4 times, which is expected given the 60-70% efficiency quoted by Anker on their website. In terms of how long it takes to recharge the PowerCore itself, it takes about 11.5 hours to go from empty to full (using a 2A USB charger). One nice feature to point out is that there is no on/off switch - when you plug in a device, it starts charging, and when you unplug it, it stops. So no need to worry about forgetting to turn the charger on or off.

PROS:
- Very well built, and seemingly durable
- Reasonable weight, given the charge capacity
- Good length micro USB cable and excellent quality carrying/storage pouch included
- Charge level indicator
- Charges devices at a good rate
- Does not need to be switched on/off

CONS:
- Time to recharge the PowerCore 20100 is somewhat on the long side, making things a bit tricky. For example, if you wanted to charge overnight, you’d need to start it charging a couple of hours before going to bed, and leave it charging for a couple more hours after waking up - this is a bit awkward.

CONCLUSION: Overall, I’m very impressed with this product. It appears to be a high quality product that offers a great set of features. No, it doesn’t have Quickcharge capability (either for charging or for being charged), but given its low price, it offers excellent value. Unless Quickcharge is important to you, I would highly recommend this battery pack to people looking for a super convenient way to charge their electronic devices while travelling.

PICTURES: Among the attached pictures, I’ve included one of the PowerCore 20100 beside a credit card, and another of it beside the PowerCore 10000, to give a relative sense of size.
Images in this review
Customer image Customer image Customer image Customer image Customer image Customer image Customer image
Customer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer image
31 people found this helpful
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عبدالعزيز
5.0 out of 5 stars المنتج جميل
Reviewed in Saudi Arabia on 28 June 2024
Verified Purchase
منتج ذو جودة