I was really impressed with the Anker 20000 mAh I recieved. Everything from packaging to the build quality was very, very nice. However, when I charged my ipad air 2 and toted it around the house as a test, I noticed that the unit itself had gotten extremely warm just after 30 minutes. I haven't had any trouble with charging smaller items like cellphone, but I had really hoped that this larger capacity battery would have solved all of my charging needs, but it falls short on my most expensive device (ipad air 2).
Benefits: it works great using my usb led lightbulb (shines very bright) and charges my samsung or iphones At the same time.
I am tempted to get a second unit just for my cellphones and emergency lights, but I am hoping to do more test charges with my ipad air 2, hoping that I can discern why all the heat build-up while charging. I will update accordingly.
*****10/11/2015 UPDATE*****
Thanks to Anker's prompt response to my unit's heat problem, I will be changing my review to 5 stars. ANKER's customer service contacted me via email to assist, and within a week they initiated sending me a replacement unit as well as a new ANKER Lightning cable in case my cable was causing the heat problem. I think I may have had a bad unit but with ANKER's customer service, I have no doubt that in the future they will help remedy future problems. Thanks ANKER! Your customer service definitely made my day.
I have a collection of RAV and ANKER external batteries and a RAV solar panel, and I love putting them to use! I live in a remote area so I feel confident in my battery backup needs. My next purchase will be ANKER's 20 watt solar panel to hopefully charge up my external batteries more quickly :) Happy charging, everyone.
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This Item  Anker Portable Charger PowerCore 20100mAh - Ultra High Capacity Power Bank with 4.8A Output, External Battery Pack for iPhone, iPad & Samsung Galaxy & More (White) | Recommendations  |  |  | |
| Price | Currently unavailable. | $44.99 | $25.99 | $44.99 |
| Delivery | — | Get it as soon as Friday, May 2 | Get it as soon as Friday, May 2 | Get it as soon as Friday, May 2 |
| Customer Ratings | ||||
| Sold By | — | AnkerDirect | AnkerDirect | AnkerDirect |
| capacity | 20100 milliampere hour | 20000 milliamp hours | — | — |
| connector type | Micro USB, Lightning | USB-A*1+USB-C*1 | USB-C*1+USB-A*1 | USB-A*2 + USB-C*1 |
| number of ports | 3 | 2 | 2 | 3 |
| compatible devices | iphone | iPhone 15/15 Pro /15 Pro Max/14/14 Pro, Samsung, iPad Pro, and More | Smartphone | Tablet, iPhone 15/15 Plus/15 Pro/15 Pro Max, iPhone 14/13/12 Series, Samsung, iPad Pro, AirPods, Apple Watch, and More |
| output current | 4.8 amps | — | 3 amps | — |
| voltage | 5 volts | 5 volts | — | 5 volts |
| battery charge time | 10 hours | 7.5 hours | 5 hours | — |
Product information
| Product Dimensions | 6.64 x 2.28 x 0.87 inches |
|---|---|
| Item Weight | 3.52 ounces |
| ASIN | B00X5SP0HC |
| Item model number | A1271 |
| Batteries | 1 Lithium Ion batteries required. |
| Customer Reviews |
4.6 out of 5 stars |
| Best Sellers Rank | #30,488 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories) #876 in Cell Phone Portable Power Banks |
| Is Discontinued By Manufacturer | No |
| Date First Available | May 5, 2015 |
| Manufacturer | Anker |
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From the manufacturer
PowerCore
Probably our most popular charging series. With faster charging, more advanced technology and even better portability.
PowerCore 20100
A frontier in portable charging. PowerCore 20100 offers an unbelievable size to cell capacity ratio along with top-class charging speeds.
Thanks to Anker’s advanced charging technology, you’ll wonder why you ever wasted time plugged in to the wall.
- Huge 7-Day Charge Cell Capacity
- Portable, Pocket-Friendly Size
- High-Speed Universal Charging
- Dual-Device Output
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.
High-Speed Charging
Anker’s world-renowned PowerIQ and VoltageBoost combine to deliver a high-speed charge to a wide range of devices.
Universal Compatibility
Designed for use with virtually any device that charges from a USB port.
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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Power to Drive Your Prime
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Ultimate Power to Keep Giving
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Doubly Fast in a Snap
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C-ing is Believing
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Anker's Sustainability Plan
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Get Powered Up Now
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Series 7 I Future Technology
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Series 5 I Higher Quality
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Series 6 I Unique Experiences
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Nearly 3 years and it’s still like new!!
I’ve had this AMAZING Anker Portable Charger for almost 3 years now and I still have nothing negative to say about it! I take it with me everywhere I go and I never have to worry about a low-battery phone. I bought a Qualcomm Anker Single PowerPort along with an Anker PowerLine Lightning Cable and whenever the charger becomes low, I just plug it in with the PowerLine and PowerPort overnight and it’s fully charged in the morning. A fully charged charger gives around 8 full charges for my iPhone 8 and it always charges fast too. For almost 3 years, I’ve never had one issue with my Anker charger and if it were to ever kaput on my one day, I’d buy another Anker charger in an instant. The material that was used to make the charger is clearly extremely durable and very high quality. I’ve dropped the charger a multiple times and it’s never hiccuped. The casing material is so durable that it barely gets any damage from the drops, even with the travel pouch on. The charger is not light but also not heavy—It’s at a good weight for a quality charger. I would hands-down say that this is the best portable charger anyone can buy. The price doesn’t break the bank and the amount of MAh you get for the price is unbeatable. My brother recently bought one like this for his Switch and it’s good to see that the quality Anker puts out has not faultered. I’d no doubt recommend this to anyone and would buy another charger from Anker in a heartbeat.
Top reviews from the United States
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- Reviewed in the United States on August 16, 2018Color: WhiteVerified Purchase
I’ve had this AMAZING Anker Portable Charger for almost 3 years now and I still have nothing negative to say about it! I take it with me everywhere I go and I never have to worry about a low-battery phone. I bought a Qualcomm Anker Single PowerPort along with an Anker PowerLine Lightning Cable and whenever the charger becomes low, I just plug it in with the PowerLine and PowerPort overnight and it’s fully charged in the morning. A fully charged charger gives around 8 full charges for my iPhone 8 and it always charges fast too. For almost 3 years, I’ve never had one issue with my Anker charger and if it were to ever kaput on my one day, I’d buy another Anker charger in an instant. The material that was used to make the charger is clearly extremely durable and very high quality. I’ve dropped the charger a multiple times and it’s never hiccuped. The casing material is so durable that it barely gets any damage from the drops, even with the travel pouch on. The charger is not light but also not heavy—It’s at a good weight for a quality charger. I would hands-down say that this is the best portable charger anyone can buy. The price doesn’t break the bank and the amount of MAh you get for the price is unbeatable. My brother recently bought one like this for his Switch and it’s good to see that the quality Anker puts out has not faultered. I’d no doubt recommend this to anyone and would buy another charger from Anker in a heartbeat.
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