Anker Power Bank, 20,000mAh with Built-in USB-C Cable, 87W Max Fast Charging (PowerCore 20K for Laptop) Lenovo, HP, Dell, Microsoft, MacBook, iPad, iPhone, Apple Watches, Samsung and More - Black

I've used several Anker powerbanks for over 7 years, and it has always delivered. Buy one and you won't need another for many years (7 at least in my experience). I gifted my older power bank and bought this one. The performance is unbeatable, and the support is even better. I had to contact customer support for the first time, and they guided me on how to reset the device. I can charge my phone 4 to almost 5 times from 20% to 95% (battery hygiene reasons) easily. This one is a bit heavier and can't be held in your pocket, comes with a decent sized wire that supports fast charging, and a small display to track battery health. The support staff was willing to send over a new device in case I was not happy with the performance, and eventually gifted me a 27,650 mah power bank which is a beast. Just like Amazon, Anker truly cares about their customer happiness. Don't look any further, and just buy it.

Perfect to charge laptops, cellphones et al. Charged my laptop from 20% to 80% and my phone from 10 to 100% and still had about 30% charge left! The only drawback is the weight and it is better to carry a separate cable to charge more than one device. I also bought a converter from USB C to USB A to charge other devices. Certainly recommend this as the only power bank you will ever need.

When you plug it in to charge the Power Bank, it just sits there for a while doing nothing. The power level remains unchanged and you wonder if something is wrong, you got a defective piece or what, is the charging cable the appropriate one, etc. etc. But, then after some time, (havent timed it yet) it suddenly starts charging and then it charges pretty fast.The product is sleek and all and works well, but it pretty much uses up all its charge to charge my mobile fully from say 10%. I thought I would get at least two charge cycles but, this was a little disappointing. But, otherwise the device looks great and works fine.

One of the best for your laptop and mobile

Great travel parter! All my devices except my Samsung galaxy S24 ultra doesn’t charge from the built in cable, I didn’t think it’s a defect may be someday I will figure that out. Product is awesome!

Product stopped working within 2 weeks contacted their customer support at first they told me to give me a refurbished product as replacement which I refused as I had paid for the new product and not the refurbished one… so they gave me a full refund instead just got the refund… hence giving them a 5 star review for their prompt resolution…

It supports fast charging. Support pass through charging. Supports trickle chargings. Claims to be fast charging it lself but it takes sometime. It is capable of 65w charging that's a huge plus and if you're in a pinch it can provide you pass-through charging meaning the power bank charges while your phone also fast charges. Do not use it regularly as it heats up the device both the phone and the powerbank.

While the power bank took only 1-1.5 to charge from 0 to 100% which is good. But it's performance is the main concern. It claimed to charge macbook 1.2 times and mobile like s23 ultra 3 times. Which is wrong:-Test1- LaptopCase1:- When i was using my laptop(with battery currently being 22% and laptop was being used simultaneously) it reached 87% and the power Bank completely drained from 100 to 0.Failed 👎👎Case 2:- when i charged my laptop again when it was in use . It was at 25% , but this time the power bank charged it completely to 100% and the powerbank drained from 100 to 0.Failed 👎👎Case 3:- when the laptop was closed (sleep mode) it charged my laptop from 6 to 100 within 2 hours but the battery remaining only 7 percent on the power bank. So it can't charge 1.2 times.Failed 👎👎Case 4:- again i ran this test, and now it drained completly under the same conditions.Failed 👎👎My laptop is lenovo ideapad 5 which has smaller battery than the macbook advertised by the company. So the powerbank should charge it more than 1 times. But in 1 time only, it is completely drained and leaving only 7%So you can see the inefficiencyNote:- same apps ,same brightness levels was being used to test the product.Test 2:- MobileCase 1:- it took 8.5 hours to charge my moto g54 from 0 to 100 and in this time range the power bank drained 45%.The efficient capacity of any Powerbank is 80 to 85% meaning that the actual capacity of any company's powerbank will be less than advertised. So if i consider 85 percent of efficiency then the power bank has 17000 mah. My phone has 6000mah of battery .So 45 percent of 17000 is 7650 mah. Meaning it took 1650 mah more to charge my mobile and it took 8 hours which is very long.Note:- This mobile supports 33 watt fast charging and it takes only 2 hours to charge it from the stock charger provided by the company.So in this case it is failed 👎👎Case 2:- Moto edge 50 fusionI charged my mobile from 0 to 100 and it took 50 percent of the power bank's battery. Which is the highest drain i have noticed till now in any power bank.So 50% of 17000 is 8500. It took 3500 mah more than my phones actual capacity which means that something is wrong with the internals of this power bank.Again ran the same test, now it took 45 percent.While in this case it took only 1.5 hours to completely charge my device which is a thumbs up 👍Note:- My mobile has 68 watt fast charging and it has 5000 mah of battery. It takes only 1.2-1.5 hours to charge my device from the stock charger provided by the company.So the efficiency of this power bank is very poor.In this case also failed 👎👎While i have used many anker products in the past, some of them like my soundcore life note purchased in 2020 is still working fabulously and it is now also providing me 8 hours of playback time.But i cant recommend this powerbank.👎Thank you for reading the post. As no one on yt is talking in this detail about this power bank