Amazon.com: Customer reviews: Anker PowerCore+ 20100 USB-C Ultra-High-Capacity Premium External Battery/Portable Charger/Power Bank with PowerPort+ 1 Wall Charger for Apple MacBook, iPhone, iPad, Samsung & More

Reviewed in the United States on July 22, 2017

To be honest I bought this back in January for a trip and have not had to use it too many times since. But it's worked as expected.

It holds a full charge for MONTHS at a time, and after nearly 5 months on storage, still has 90% charge.

Feels quality, the accessories included were useful, charges fast, and holds its charge long. I would buy it again.

I've begun using this to charge my phone on the regular. Works for a week and I never have to look for a charger. My wife started to steal it from me ao I bought her a smaller version. Anker all the way.

One person found this helpful

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Jigar Patel

Got my replacement, but Anker doesn't provide international warranty.

Reviewed in the United States on December 13, 2016

Verified Purchase

The best powerbank I have ever used! I now own two of these at home. I like the fact that Anker has integrated USB-C type which can be used to charge the powerbrick OR as an output to charge the new unpopular MBPs via a USB type C to type C cable that is included in this bundle with the USB type C adapter. This is the best feature of the Anker PowerCore+ 20100.
Next, it has two more, output only, USB 3/3.1. I charge an iPhone 5, since the battery capacity is small on the iPhone 5, this battery pack lasts me an entire week. Yes, 7 days. After that, I have to leave it for charging over night. Takes a long time to charge this to full capacity. But given the amount of days it charges my phone, this is very acceptable. Plus 20100 is a lot of capacity to charge up. The included adapter and usb-c to usb-c cable helps to speed up the charging process since this uses fast charging technology. With fast charge, this will go from 0-100% in approx 4-5 hours. Else with a normal adapter, it may take 7-8 hours. Glad I brought the combo package at a good discount during the Black Friday sale.
I would highly suggest that you pick up the Anker (with fast charge) adapter as well.

Update #1
One output port failed, in talks with Anker to get an exchange done. Product failed in July 2017, 8.5 months after purchase. I brought another smaller Anker powerbank on 1st Feb 2017. That has a spoilt charging port, so the smaller one is completely useless!
Since I am no longer in the US and am traveling, Anker has offered me half a refund which is quite ridiculous. The products didn't even last for half the warranty period. Plus both these products are freely available in my country. I hope Anker can ship me a replacement from a warehouse in my country. Will update the review once I am able to close the RMA.

Update #2
I got in touch with Anker again and they offered me a one time replacement on both the battery banks. The replacement for this one seems to be working fine. Haven't tested the smaller capacity one yet. Thank you for the brand new replacement battery banks. My only suggestion is that, please remove "international warranty" from your main website because that is what lead me to buying this product back in 2016. Clearly you couldn't ship me a replacement internationally or get one arranged for me in India, even though this battery bank is widely available on Amazon (India) and other online retailers. I was lucky enough because my colleague was traveling to the US and back to India. But not everyone has such an option.

5 people found this helpful

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Shariff Carlos

Inconsistent performance.

Reviewed in the United States on August 23, 2018

Verified Purchase

Pros:
+Seemed a good value at the time
+Initial use was good, charged my phone multiple times over

Cons:
-Takes forever to charge to full, even using the supplied charging unit
-Will drain a USB-C device if plugged into USB-C without pressing the on button first. A terrible accident to make
-After a year's worth of what I'd call light use, it can't really charge my phone more than a couple of times
-Plugging in devices to charge from the USB-A ports will only charge them for about 10 minutes before it stops charging. I have to unplug and plug the device back in. Basically, I can never really charge Bluetooth headphones.

All in all, I feel like I should have spent my money elsewhere as I currently have a big power External Battery that performs WORSE than the generic, Insignia Best Buy, Battery that has less than half the capacity rating and was bought a year before the Anker.

Pretty disappointing.

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Jaz

1 star, can't charge my garmin vivofit HR. The battery turns off after a minute or two and doesn't charge! Won't charge Nexus 5x

Reviewed in the United States on September 10, 2016

Verified Purchase

Downgrading to 1 star because it won't charge my garmin vivofit HR. It turns off within a minute or two. Apparently the garmin doesn't draw enough current to cause the anker's circuitry to stay on.

Additionally, As it comes with a USB 2 to USB-C cable, my assumption was that it provides higher current and rapid charge capability via that cable. Instead you must use it's own charging port (USB C to USB C) in order to get rapid charge. This means you cannot charge your device while the battery itself is being charged.

Also, it will only rapid charge my Nexus 5x up to about 75%. The power saving circuitry kicks in after that and the battery shuts off.

Extremely poor implementation of type type of product. Very disappointing considering their excellent reputation.

One person found this helpful

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Imlay

Great battery but has its problems

Reviewed in the United States on November 15, 2016

Verified Purchase

This is a great product. The charge lasts quite a while since it is a large capacity battery, but unfortunately one of the USB port has broken already. Luckily there is another port for me to use our else there would be nothing for me to use.

2 people found this helpful

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CJ

Late 2016 15" MacBook Pro with Touch Bar

Reviewed in the United States on May 20, 2017

Verified Purchase

I've used lots of Anker products with great success. I purchased this PowerCore to use with the 12" MacBook over USB-C and it charged that machine just fine. I have since upgraded to a fully loaded 15" MacBook Pro, Late 2016, with the Touch Bar, with four Thunderbolt 3 ports via USB-C connectors. I saw that this was listed as "incompatible" with that machine and I wanted to share my experience with this charger.

What this PowerCore WILL do with the MBP:
This PowerCore will charge the MacBook Pro. If the screen is on its brightest setting, the MBP's battery will still drain its charge, but it will drain slower than normal. If the screen is on a lower brightness setting, the MBP's battery will accumulate charge, but VERY slowly. I'm currently typing on the machine and I have the PowerCore connected to the MBP. The MBP has increased bayberry from 39% to 42% in about 10 minutes, and it says that a full charge will occur within 7 hours. It will take a very long time to charge the MacBook Pro with this battery, but it does charge. It's probably listed as incompatible because the PowerCore cannot deliver the power needs of this laptop while it's being used on a high screen brightness (or other power hungry tasks). I've found that approximately 75% brightness seems to be the threshold where the PowerCore is just barely able to keep up with the power demands of the MBP without charging or discharging its battery.

Very important piece of information that others have said: To charge a device with the USB-C port, you need to press the button on the PowerCore BEFORE you plug it into the device. If you plug it in before pressing the button, you will end up charging the PowerCore from your device, thereby having the opposite effect.

I would buy this PowerCore again, as it's been a reliable piece of equipment so far. I don't think any battery could deliver the power needed to run the MacBook Pro during full use, so I'm as satisfied as I could be. Judging by how fast this is charging, I would guess that the PowerCore would be able to give the MBP a full charge if left connected overnight, making it a decent backup charging solution for camping or other place where you'd be away from reliable power for a while. I don't know how much the PowerCore would be able to charge the MBP from a 0% charge, but maybe if I have an empty MBP and a full PowerCore (and several hours), I could try to do an overnight test to see how much charge it was able to deliver. Hope this helps other MBP owners!

10 people found this helpful

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lowwall

Flexible and powerful

Reviewed in the United States on September 18, 2016

Verified Purchase

This thing is great. I bought it for a trip to Europe with my kids. It recharged two USB-C phones (Nexus 5X) and two standard USB-micro tablets on the 9 hour flights without being fully drained. You can charge from both the USB-C and standard USB ports at the same time. Note that the PowerCore recharges from the only USB-C port. If you want to use the USB-C port for charging your device, you need to push the button (there's only one) before you plug in your device. It is ready to charge from the USB-C port when the lights around the power button are lit up. If you don't do this, the PowerCore will take power from your device rather than giving it. After draining my phone a couple of times by mistake, I've learned to verify that my phone is actually charging after plugging it in. Note that you don't have to push the button to charge from the 2 standard USB ports.

Random notes
- My Nexus 5X shows "Charging Rapidly" when plugged into the PowerCore. It appears to charge as fast as the Nexus wall charger, although I haven't done any rigorous tests.
- The package comes with a wall plug and USB-C cable, so you get a spare wall charger for your USB-C devices with your purchase. You don't need the included charger to charge the PowerCore, it'll work with any USB-C wall charger. I have also successfully charged it with a standard 2amp USB wall charger meant for a tablet (using an Anker USB-micro to C adapter on the cable), but it takes overnight to fully charge. I haven't tried charging it from a 1amp phone charger, but even if it works, you'd need more than a day to charge it up.
- It's not really a pocket device. It's perfect for flights if you have multiple devices to charge and I'll put it in a backpack or stroller to recharge the kids' tablets if we are heading out for what looks like a long, boring visit somewhere. It would also be great for those who need to recharge a USB-C chromebook or laptop on the go. But if you just want to recharge a phone occasionally, go for a - lighter, smaller, cheaper - lower capacity charger.

9 people found this helpful

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Geoffrey Tashiro

Awesome

Reviewed in the United States on October 23, 2016

Verified Purchase

4 stars since Anker does not offer any alternative for shipping to Hawaii, Amazon fulfillment blocks Hawaii shipping because of the Li-ion regulations on plane shipments. Had to go on a trip to snag this guy at a Amazon Locker. Purchased since I planned to & purchased a Note7 to charge with the USB-C but we all know what happened with that. Regular USB charging works great.

2 people found this helpful

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Amazon Customer

Never fear the far away socket again.

Reviewed in the United States on April 14, 2017

Verified Purchase

I bought this in October 2016, to power my GPS and dashcam during a roadtrip in a classic car with a friend, because the car has no 12v socket, and even if the car did have a 12v socket -- I simply wouldn't trust the variable voltage of Lucas electrics with my tech toys or phone.

Since then, I've found that I use it VERY regularly. When I'm out in public places, I think it's much safer to charge my devices right inside my purse or backpack - never out of arm's reach, than to plug them into a socket farther away that someone else might be able to reach before me. Tonight at dinner in a restaurant, my phone charge was low, so I just plugged it in, inside my purse that was hooked on my knee under the table, and none of my dinner companions were even aware of it. Even in perfectly safe places, I worry about people tripping & falling over my cords if they are just plugged into some randomly available wall socket.

I have several devices that can be USB powered. I use the 20100 so much that in order to get a third USB port, I have decided to give this one to my mom, and ordered the 26800 for myself. If all you need to do is charge, 2 USB ports & 1 USB-C may be plenty for you. If you need more -- such as when I'm in charge of all tech toys in a positive earth car -- I would say go for the Anker PowerCore+ 26800. I absolutely thrilled with the 20100, and I'm confident that I'll be even happier when I can plug in One. More. Thing.

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sleepyhead247

Will charge USB-C gadgets rapidly and is solidly built

Reviewed in the United States on January 2, 2017

Verified Purchase

The Anker PowerCore + 20100 with the wall jack included is a bit ahead of its time. The tagline seems to be how quickly the device itself charges and its ability to charge multiple devices on the go, and these claims are both valid. However, you should know that using its self-charge USB-C cable and port, I also rapidly charge a USB-C smartphone on the go with my PowerCore+. I did not find it capable of being a pass-through charger to external devices while self-charging, and it seems the device needs the user to manually toggle input/output charge.

In addition to the pluses, this device holds its charge for a loooong time while being carried in a backpack and a car's armrest console. To be clear, I don't know the modern portable charger's norm for holding charge, so I made a point of not using or charging this one for 6 weeks while leaving it in non-climate-controlled spaces to check its performance. After that time, I brought it inside, plugged it into the wall, and observed 9 of 10 of the indicator LEDs still lit. The PowerCore+ recharged in 8 minutes, and whether that's typical or not, I was sufficiently impressed.

A few other notes:
Legacy USB devices do not seem to charge with exceptional speed using this device.
Its external temperature has not risen to a remotely threatening level while charging a phone and tablet so far.
The Caseling Hard CASE for Anker 20100mAh Portable Charger is not the best fit for this version as this one is longer.
This little sucker is sturdy and probably doesn't need a hard case (a mesh bag is included).

Thank you for reading, and I hope this review helps.

5 people found this helpful

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