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.
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This product has sustainability features recognized by trusted certifications.
Carbon impact
Carbon emissions from the lifecycle of this product were measured, reduced and offset.
As certified by
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This item: Anker 20,100mAh Portable Charger, Ultra High Capacity Power Bank with 4.8A Output and PowerIQ Technology, External Battery Pack for iPhone 15/15 Plus/15 Pro/15 Pro Max, iPad, Samsung Galaxy, and More
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This Item  Anker 20,100mAh Portable Charger, Ultra High Capacity Power Bank with 4.8A Output and PowerIQ Technology, External Battery Pack for iPhone 15/15 Plus/15 Pro/15 Pro Max, iPad, Samsung Galaxy, and More |  |  |  |  |  | |
| Price | $49.99 | $39.99 | $59.99 | -13% $69.63 List: $79.99 | $69.99 | $49.99 |
| Delivery | Get it as soon as Monday, Aug 5 | Get it as soon as Sunday, Aug 4 | Get it as soon as Sunday, Aug 4 | Get it as soon as Sunday, Aug 4 | Get it as soon as Monday, Aug 5 | Get it as soon as Sunday, Aug 4 |
| Customer Ratings | ||||||
| For traveling | ||||||
| Charging power | ||||||
| Battery life | ||||||
| Value for money | ||||||
| Sold By | AnkerDirect | AnkerDirect | AnkerDirect | Hippsh | AnkerDirect | AnkerDirect |
| connector type | USB Type A, Micro USB | USB-A*1+USB-C*1 | Usb Typ-C | USB Type C | USB Type C | USB-A*2 + USB-C*1 |
| number of ports | 2 | 2 | 2 | 3 | 2 | 3 |
| compatible devices | Smartphone | iPhone 15/15 Pro /15 Pro Max/14/14 Pro, Samsung, iPad Pro, and More | — | Laptop, MacBook Pro, iPad Pro, iPhone 15/15 Plus/15 Pro/15 Pro Max, iPhone 14 Pro, Apple Watch Series 5 | Tablet, MacBook, iPhone iPhone 15/15 Plus/15 Pro/15 Pro Max, iPhone14/13/12 series, Samsung Galaxy, iPad, and More | Tablet, iPhone 15/15 Plus/15 Pro/15 Pro Max, iPhone 14/13/12 Series, Samsung, iPad Pro, AirPods, Apple Watch, and More |
| voltage | 5 volts | 5 volts | 5 volts | 5 volts | 5 volts | 5 volts |
| battery charge time | 10 hours | 24 hours | — | 3.5 hours | 28 minutes | — |
| weight | 0.78 pounds | 465 grams | 440 grams | 1.1 pounds | 2 pounds | 1 pounds |
Videos
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Customer Review: Excellent 20000mah Power Bank!
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From the manufacturer
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Perfectly PortableLighter than a can of soup, PowerCore fits easily inside backpacks, purses, or computer bags. |
High-Speed ChargingAnker’s world-renowned PowerIQ and VoltageBoost combine to deliver a high-speed charge to a wide range of devices. |
Highly DurableConstructed with premium materials to keep you charging again and again. |
Universal CompatibilityDesigned for use with virtually any device that charges from a USB port. |
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| PowerCore 20100 | PowerCore 10000 | PowerCore 26800 | PowerCore Essential 20000 PD | PowerCore+ 26800 PD | |
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| Customer Reviews |
47,315
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66,468
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37,422
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6,140
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2,514
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| Price | $49.99 | $26.99 | $59.99 | $54.99 | — |
| Series | Basic | Basic | Basic | Premium | Premium |
| Main Feature | Light Weight | Portable /Light | Triple Device Charging | PD+PIQ2.0 Quick Charge | Macbook Air Supported |
| Extra Hours of Battery Life (based on current average smartphone batteries) | +92 Hours | +46 Hours | +123 Hours | +92 Hours | +123 Hours |
| Output Ports | 2 x USB-A | 1xUSB-A | 3 x USB-A | 1 x USB-C 1 x USB-A | 1 x USB-C 2 x USB-A |
| Recharging Time | 10 Hours | ~4.7Hours | 6.5 Hours (using both input ports) | 6.5 Hours (using USB-C to USB-C PD Charger) | 4.5 Hours (using USB-C to USB-C PD Charger) |
| Size | 6.6 x 2.4 x 0.9 in | 3.6 x 2.3 x 0.9 in | 7 x 3.1 x 0.9 in | 6.2 x 2.9 x 0.8 in | 7.1 x 3.1 x 0.9 in |
| Weight | 356g/12.56oz | 180g/6.35oz | 490g/17.28oz | 345.5g /12.2oz | 576g/20.3oz |
From the brand
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We want you to live without the inconvenience and uncertainty of where your next charge is coming from.
Our chargers and accessories don't just power up your devices, they offer the tech experience you want with zero restrictions.
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Sustainability features
This product has sustainability features recognized by trusted certifications.
Carbon impact
Carbon emissions from the lifecycle of this product were measured, reduced and offset.
As certified by
Climate neutral by ClimatePartner The Climate neutral label by ClimatePartner certifies that the carbon footprint of a product was calculated and all associated emissions were offset. Additionally, ClimatePartner encourages companies to set ambitious reduction targets and reduce their products' carbon footprints. The certificate number can be entered on ClimatePartner’s website for additional information such as the supported carbon offset project(s). ClimatePartner is improving lives by helping companies tackle climate change with practical solutions.
Certification Number
743M8T Part of
Reviews with images
little flaws right out of the box, but seems like a good product
I will be updating this review over time.6/7/17-I received the package today after some trouble receiving it. That was a problem on Amazon’s end not Anker’s. The packaging is always amazing for Anker’s products. It fits perfectly is sleek and organized. It comes with a short micro usb charging cable that looks like it will hold up for a while. And the battery itself came with a half charge.Unfortunately the first thing I noticed after taking the battery out of its protective sleeve was a very faint scuff along the curved edge near the middle of the battery. Not a big deal figured maybe it was bumped or scraped before packaging. It’s also not a big deal to me because most people probably wouldn’t notice it but I tend to be hypersensitive to these types of things (Not including photo as it is hard to see). Second thing I noticed was the little protective bag that came with it. It looks interesting and is obviously made to protect the device as it is slightly padded. But, I noticed right away that a strand was hanging on top near the opening. It’s a cheap bag I was not expecting to receive anyway so I am not too upset about that.But there are many things I like as well. I plugged my phone in and my old iPod in at same time and the led lights still indicate the battery charge at 50%. I am pleased by the fact that it seems to hold its charge very well. It’s a sleek design. It’s nothing special, but looks modern. Seems durable, but we’ll find out over time. Came with a bag I was surprised to receive that is a nice addition.Only reason I’m currently giving it 4 stars instead of 5 is because of the two little flaws that stood out immediately. If there was a 4.5 star option that’s where I would put it. If it works up to my expectations over the next couple weeks I will happily change it to 5 stars.6/25/17-It has worked up to my expectations if not exceeded them. It holds enough charge for long trips. Seems to charge my phone around 5 times. Which is plenty. But I’m not sure on that. I tend to use the phone while it’s charging so I’m sure that skews the estimate that is advertised.The one problem I did face though was that the block itself charges very slowly. It seems like it takes almost 24 hours to charge fully from a depleted state. I don’t believe it’s the port I’m using to charge with as it is an Anker IQ port. Also, I use the Anker cord that came with it usually. But, it holds a lot of mAH I understand why it takes so long. I wish they would have used usb c on the charging end to help with this problem. But, the micro-usb is convenient as I have those cords everywhere.12/30/17- I’m currently on vacation and have been for 3 days so far. I’ve charged my iPhone X about 3 times and my Bluetooth headphones after my plane ride with this brick. I’m very happy that even with fairly heavy use it performs great.Bottom line:Great product, great company, and I would definitely recommend getting this.
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Top reviews from other countries
Josh Levinson
Excellent portable charger when Quickcharge and travelling ultra light are not important
Reviewed in Canada on June 22, 2016Color: BlackVerified Purchase
Josh Levinson
Reviewed in Canada on June 22, 2016
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
