Product description
1 High-Speed 87W
2 65W Fast Recharge
3 20K Power
1 Built-In USB-C
2 Huge Compatibility
1 For Busy Professionals
2 For Every Device
3 For Vacation Charging
Why is my power bank providing fewer charges than expected?
The capacity reduction during charging is due to a 30% to 45% energy loss in the battery cells and conversion circuitry. Therefore, a fully charged Anker A1383 Power Bank (PowerCore 20K) offers an estimated 11,000mAh to14000mAh to power devices.
How can I estimate the number of charges for my device?
To estimate charging cycles, use this formula:
(Power Bank Capacity x 0.65) + Device Battery Capacity ≈ Numberof Charges
For instance, charging a 3,500mAh device using a 20,000mAh povver bank would offer approximately 3.8 charges
How long does it take for the power bank to recharge?
It depends on the charger’s power and the ambient temperature. The A1383 model, when using a 30W PD charger at 77°F (25°C), takes about 4.5 hours to recharge.
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Customer Reviews
4.6 out of 5 stars 4,516
4.6 out of 5 stars 5,280
4.7 out of 5 stars 181
4.8 out of 5 stars 39
4.6 out of 5 stars 18,093
4.4 out of 5 stars 15,576
4.1 out of 5 stars 4,156
Price
$44.99$44.99
$87.99$87.99
$159.99$159.99
$179.99$179.99
$29.99$29.99
$74.99$74.99
$139.99$139.99
Main Feature
87W Max Fast Charging
Built-in + Retractable Cables
300W,TurboBoost,AppControl
220W,TurboBoost,AppControl
Built-In C Cable
PD 3.1, Max 140W
GaNPrime PowerCore 200W
Charging Ports
Built-In C Cable + 1C1A
Built-in C Cable*2 + 1C1A
2 USB-C+1 USB-A
2 USB-C+1 USB-A
Built-in C Cable + 1C
2 USB-C, 1 USB-A
2xUSB-C, 1xUSB-A
Compatible Devices
iPhone 16/iPhone Serie
iPhone 16/iPhone Serie
MacBook Pro/iPhone 17/and More
MacBook Pro/iPhone 17/and More
iPhone 16/iPhone Serie
iPhone 16/iPhone Serie
iPhone 16/iPhone Serie
Recharging Time
~1.5 Hours
~2 Hours(100w)
～1.06 Hours(134W)
~1.43 Hours(100W)
～5.25Hours(20W)
~1 Hour (140W)
~1.3 Hours (100W)
capacity
20000mAh
25000mAh
26250mAh
20,100mAh
20000mAh
24000mAh
20000mAh
Size
6.2 x 2.89 x 1.02 in
6.18 x 1.93 x 2.12 in
6.29×1.49×2.47 in
5.78 x 1.75 x 1.96 in
4.72 × 2.90 × 1.24 in
6.13 x 2.15 x 1.95 in
5.00 × 2.15 × 1.96 in
Weight
0.97lb
1.31lb
1.32lb
1.24lb
0.78lb
1.39lb
1.19lb
87W Power to Share: Distribute 87W across three devices, with a single device receiving up to 65W, to rapidly charge iPhones, Samsung phones. Quickly charge a 14″ MacBook Pro to 50% in under 40 minutes.
Speedy Cable Charging: Utilize the built-in cable to elevate your iPhone 15 Pro to 58% or a MacBook Air to 52% in 30 minutes. You can also fully recharge this power bank in 1.5 hours with a 65W charger.
20,000mAh for Extended Use: Eliminate concerns about battery depletion with a 20,000mAh power bank that ensures consistent, reliable charging for all your devices, also approved for airline travel.
Lasts Longer, Charges Faster: The integrated USB-C cable is designed to endure, withstanding over 10,000 bends for dependable charging and convenient storage.
What You Get: Anker Power Bank (20K, 87W, Built-In USB-C Cable), welcome guide, 18-month warranty, our friendly customer service.
BeccaM –
Very capable portable charger, with the usual Anker quality
During recent travel, I ran into a problem after some airport delays: While my tablet was fine, my phone’s charge (from which I was streaming music) began dropping alarmingly low and I didn’t have a ready means to recharge. Well, I decided to address that problem during a recent Prime sale.For me, the prime factors included having a lot of available power, and 20k mAh is near the top of what’s allowed in the US by the TSA, but well within the limits (it’s 72 Wh) for a powerbank, and as is usually helpful if not required, this number is printed (albeit in very small type) on the backside of this Anker powerbank. Side note: As I write this review, powerbanks are limited to 100 Wh max and must be carried in one’s carry-on or personal item (such as shoulder bag); these are not to be in checked bags.Capable of delivering 87W total to multiple devices, this powerbank has the usual Anker quality: Sturdy case, clean design, and about as slim and compact as a 20k mAh powerbank can aspire to be. That is to say though, it’s a little bit on the heavy side, so this is something you’ll want to carry in a bag and not, say, try to tuck into your back pocket. (Although technically, it’s small enough for that…it just won’t be comfortable and could fall out, I suppose.)The controls are simple: One button to turn it on, at which point you can see the percentage of power remaining. The LED display is clear and bright, and I can even read it without my progressive glasses. As with most Anker products of this type, it has iQ ports, one with USB-C and the other USB-A. It also comes with an included attached short USB-C cable that neatly tucks into a channel around the bottom and side of the unit. It’s worth noting that only the two USB-C ports can be used for charging the power bank. The USB-A one is output-only. Just something to keep in mind.In terms of durability, I guess I’ll find that out over time, but I’m pretty confident it’ll hold up. I have some very old Anker powerbanks that I keep in my Power Outage 5-gal bucket and despite leaving them in there charged up, they still work fine.I would buy this again, although it was nice being able to get it on a Prime day sale price. I do now just keep it in my shoulder bag and have that peace of mind that I needn’t worry about either my phone or tablet running out of juice when I need them the most. For travel, I figure the only other thing I’d do is add another short USB-C cable to my bag and be good to go.
Angelskky –
Loving this portable charger for the past nine months! I don’t leave home without it.
I have been a proud owner of my Anker portable charger for nine months. It mainly lives in my EDC bag, but has also gotten used in the home when my youngest child is using her phone but not near an electrical outlet and her battery is low. It came in handy for my teen who needed to have a backup charging source with her for computer-based standardized testing. I feel good knowing that if there’s a power outage, I have a reliable charger for my Android phone, MacBook, and Bose headphones (when in trickle charge mode for low current devices). And, when we go out of town…this charger ALWAYS tags along.I love the built-in charging cable—that’s a gold feature in itself. I have a few other chargers, but this is my primary for that reason. If something were to happen to it, I would purchase it again. It recharges quickly with my 45W charging block using either the built-in cable or a separate USB-C cable. I am considering buying both of my children one for Christmas this year to replace their Anker chargers (that don’t have a built-in cable nor provide as many charges).What’s not to love? It’s compatible with my devices, provides me with multiple charges, it’s reliable, and I love the Anker quality.
RPH –
Nice!
Nice power bank for the money! It is about 6″ long, just under an inch thick, and weighs in at just under a pound. It’s design is simple, just a black box but who needs more than that? It comes with one attached usb-c cord and another usb-c port as well as a usb-a port. The attached cord plugs into my old LG phone which has trouble with charging at times and this power bank had no problem immediately starting fast-charging. I charged it up once form the ~ 25% to 100 and it had no heat issues. Watch for a sale and buy this power bank, give yourself some reassurance if you are having battery level troubles like I am.
Omar Cintron –
Works as advertised. No complaints.
I wanted a power bank that could fast-charge my phone. This power bank works as advertised so far. I also used it on a laptop. While it charges my laptop without issue, I recommend not doing this. The laptop drained fast. The included built-in USB-C connector cable is very convenient and tucks away right on the casing. Now I don’t have to remember carrying one for my phone on the go. Very thoughtful feature. So far so good, I recommend.
Cosmic –
Absolutely amazing!
This is hands down the best powerbank i have ever used. It is slightly larger then my old bank which was about the size of my cellphone but it is not too bulky where it creates an issue.The attached USB-c cable is amazing for fast charging and the actual time the power bank last also is great.I purchased one of these and subsequently left it on a plane a week later, this is such a good product I immediately purchased another because I cannot imagine going back to my old power banks!
Amazon Customer –
Very fast charging
martin –
Super bonne qualité le fil incorporé permet une charge tres rapide
Mohamed Ahmed –
ممتاز و روعه بصراحه وسريع في الشحن هى المشكلة بس في الحجم
Caroline –
Amazing for my iPad!!!
Kirsty Huntley –
I’ve owned a lot of power banks over the years, but they all had the same problem: they were useless if I forgot to bring the right cable. This Anker 20,000mAh power bank completely solves that. The built-in USB-C cable is an absolute game-changer. It tucks away neatly into the side of the unit, and it means I can just grab the power bank and go, knowing I have everything I need to charge my phone.The capacity is massive. 20,000mAh is enough to charge my phone (a Samsung Galaxy) at least three to four times from empty, with some juice still left over. It’s perfect for a long weekend away, a festival, or just for those busy days when I’m away from a wall socket for a long time. It also charges my tablet and headphones without any issues.Beyond the built-in cable, it’s also got a standard USB-C port (which works as both an input to charge the power bank and an output) and a USB-A port, so you still have the flexibility to charge older devices or help out a friend who has a different type of phone. The charging speed from the built-in cable is great, supporting fast charging for my phone.In terms of design, it’s about what you’d expect for a high-capacity bank – it’s got some heft to it, but it’s slim enough to slide into a backpack or a large coat pocket without being too obtrusive. There’s also a handy little button on the side with a circular display that shows you the exact percentage of battery remaining, which is much better than the vague four-dot systems on older models.Verdict: This is pretty much the perfect power bank for anyone with a modern USB-C phone. The combination of huge capacity, multiple ports, and the sheer convenience of the integrated cable makes it a top-tier product. It’s reliable, well-built, and has replaced all my other portable chargers.