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Anker

Anker Nano Power Bank, 45W 10,000mAh Portable Charger, iPhone Battery Pack

Based on 3,688 reviews
Condition: New
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$49.99
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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Nov 4
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At a glance

Condition
New
Color
Black
Model
A1638
Dimensions
3.21 x 1.42 x 1.99 in
Weight
231 g
Connector Type
Built-in C Cable*1+1C1A
Battery Capacity
10000 mAh
Works with
Smartphone

Features 5

  • Your Go-To Power Solution: Features a 10,000mAh capacity, 45W max fast charging, pass-through technology, a smart display, and 24/7 battery protection for safe, efficient power. The USB-C port and included cable support 40W fast charging for the iPhone 16 series and Samsung.
  • Sleek and Portable: Designed for life on the go, this power bank measures 3.21 1.99 1.42" and weighs only 8.2 oz. It's 16% smaller than standard models and features a retractable cable for easy carrying. Plus, it's flight-approved.
  • Two-Way Fast Charging: Enjoy simultaneous charging and recharging with a 45W max single-port USB-C output for devices and a 30W max input for quick power bank replenishment. Charge an iPhone 16 Pro to 50% in 27 minutes and recharge the power bank to 100% in 2 hours.
  • Pull, Adjust, and Charge: Seamlessly power up with a pull of the durable, built-in retractable cable, capable of over 20,000 bends. Charge neatly and efficiently without the hassle of tangled wires.

Description

Anker Nano Power Bank Anker Charging Station Anker Nano Power Bank Anker MagSafe Charger Anker Charger&Cable Anker Nano Travel Adapter Anker Nano USB C Cable Why is my power bank providing fewer charges than expected? Due to 35% to 45% energy loss in the battery cells and circuit conversion, a fully charged Anker Nano Power Bank (10K, 45W, Built-In Retractable USB-C Cable) delivers about 5,500mAh to 6,500mAh of usable power. Why doesn't this power bank charge my phone at 45W? This power bank supports up to 45W, but some phones don't accept that much power. Even for phones that do, charging speed may slow down as the device heats up to protect the battery. It's normal for the smart display to show below 45W while charging. Can this power bank charge my laptop? We don't recommend using this power bank to charge laptops. Due to its limited capacity and heat buildup during high-power output, it cannot sustain 45W charging for long. It's best used for quick top-ups in emergency situations. Why is the charging speed slower when using multiple ports? To protect your devices, the power bank limits output when using multiple ports. Max single-port output is 15W when using 2 ports and 7.5W max per port when using 3. Why won't the power bank recharge after being fully drained? After heavy use, the battery cells may be too warm. Recharging will resume once the temperature drops to a safe level, protecting the battery lifespan.

Specs 26

Connector Type Built-in C Cable*1+1C1A
Brand Anker
Battery Capacity 10000 mAh
Color Black
Special Feature Fast Charging
Other Special Features of the Product Fast Charging
Voltage 5 volts
Power Source Battery

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Nov 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

Can’t go wrong with Anker!
Color: Black
Here's a casual, detailed review that sounds natural and conversational: What can I say about this charger that hasn't already been said? Anker has been my go-to brand for portable chargers for years, and I have a pretty embarrassingly large collection of them at this point. Somehow, they still managed to impress me with this one. The biggest thing I noticed is just how fast it is. It charges my iPhone 16 Pro Max incredibly quickly, and I've lost track of time more than once only to realize my phone is already back to 100%. It also seems to recharge itself surprisingly fast, which is a huge plus when I'm getting ready to head out the door. The built-in USB-C cable is honestly a game changer. This is the first portable charger I've owned that includes its own cable, and I didn't realize how much I'd appreciate it until I started using it. I never have to dig through my bag looking for a cable or wonder if I'm using one that supports the fastest charging speeds. Everything I need is built right into the charger. The display is another feature I didn't know I wanted. Does it need to show as much information as it does? Probably not. It's honestly a little over the top, but I still find myself looking at it every time I plug something in. It's a nice premium touch that makes the charger feel even more polished. I'm also impressed by how compact it is. This is easily the smallest 10,000mAh power bank I've used, yet it still has enough capacity to give my phone several charges before needing to be recharged itself. It's small enough that I can throw it in my pocket or bag without thinking twice. I picked this up during Prime Day when it hit its lowest price, and it was an absolute steal. That said, even at its regular sale price, I think it's well worth the money. If you're looking for a fast, compact, well-designed portable charger, this one is easy to recommend. ... show more
Reviewed in the United States on July 1, 2026 by rum
One of the most useful things in my travel photography bag
Color: Black
I bought this primarily to keep my phone and other small electronics charged while traveling and shooting, and it has become one of the more useful pieces of equipment in my bag. The 10,000mAh capacity is a good balance between having enough power for a long day and not carrying a huge battery pack. The built-in retractable USB-C cable is probably my favorite feature because it means I do not have another loose cable floating around in my backpack. Charging speed is also noticeably better than the older basic power banks I have used. The display is helpful for knowing how much battery I actually have left instead of guessing from four little indicator lights. It is fairly compact, although it is still dense and has some weight to it. That is expected with a 10,000mAh battery, but it is worth mentioning if your goal is the absolute lightest possible setup. For travel, drone days, hotel shoots, or just keeping a phone alive while recording a lot of video, this is an easy piece of equipment to recommend. ... show more
Reviewed in the United States on October 7, 2026 by Zachary Griffiths
Great Small Bank
Color: Black
Bought this after not having any battery bank for a long time. Something to recharge my phone before I get home from work on last break. That and I went out of power for a week and at least something to help charge while out would be nice. Overall, I love how small, portable, and handy this is. It packs enough power to recharge my phone fully from zero and then a little more. Charges up my phone super quick too. Downside is I think the level of power and price is lopsided. Not much power in all honesty for how much you spend. Not a game changer but would like a little more juice for how much I spent. The only other downside is charge time for the battery itself. Using a standard cord and block, I charged my battery for around 12hrs from 0%. It got to 88%. Insane if you ask me. I recently discovered fast charging blocks that essentially help pour more energy in. Took my battery at 60% to 100% in 30mins. So TLDR: Great little portable battery for personal daily use if you need to charge your phone from 0 or top up. Little pricey though. And you should really invest in one of those powerful charging block kits if you mind how slow charging the battery is. ... show more
Reviewed in the United States on October 21, 2026 by Jason
Perfect for traveling.
Color: Black
What a great power pack. The retractable USBC charges your items AND brings the power into the unit from a wall charger. Not having to mess with separate cables is a huge bonus for traveling. It’s a small device and holds enough energy to fully charge my iPhone and the battery case it’s in. The box shape is nice because the pack can stand up on its own. Readouts are clear and accurate. ... show more
Reviewed in the United States on September 13, 2026 by Hilary
Fantastic power bank, but concerning label durablity
Color: Black
Excellent power bank overall. The size, 45 W charging, built-in cable, and portability make it one of my favorite travel batteries to charge my 17 Pro, iPad, and even a MacBook Pro in an emergency. Packs small and light in EDC, backpack and my camera sling. However, after only a few months of normal travel use, the printed regulatory markings have faded significantly. This became an issue during airport security screening in China, where officers needed a flashlight to verify the certification labels (this power bank is compliant with CCC certification which is required in Chinese domestic flights) I hope Anker had laser-etched the markings or protected them under a clear coating, as this is a travel product and made me knock a star on this overall perfect battery. ... show more
Reviewed in the United States on July 29, 2026 by Amazon Customer
Just what I wanted for a long plane flight.
Color: Black
I like the size of the charger and the display showing the unit battery life or charging details if you have something plugged in to charge. It's a good size for traveling but would be too bulky to carry in a clothes pocket I think. It seemed to charge my iPhone quickly. I have not traveled with it yet but I believe it will be great for my phone and other devices. I like the pull out cable and appreciate the 2 other ports that are on this charger. ... show more
Reviewed in the United States on September 30, 2026 by JMO
Flexible and powerful little power bank
Color: Black
Absolutely love this power bank. I have serveral devices that can be powered by it. Charges devices quickly. As a display showing status of charge and remaining battery capacity. The built in retractable cord make carrying and using this battery super convenient. You can use this cord to charge the battery (with a USB-C charging block) or to charge your USB-C device. I can fully charge my Galaxy S24 twice before depleting the battery. ... show more
Reviewed in the United States on October 18, 2026 by not4u13
Best battery bank I have used so far
Color: Black
Review Image by JAMES C
Omg I love this thing. Ordered one from Anker and it took a few days to get to me. Loved it so much I ordered two more from Amazon due to shipping speed. I also own the larger version of this with the retractable cable and kept it as my primary battery Bank. The device is small enough to easily fit and comfortably hold in my pocket. It's super fast charges my phone with its retractable cable which is insanely useful. The digital display on it is perfectly designed. I currently use three devices consistently throughout my entire day that require recharging. This battery bank is insanely useful. The difference between this bank and the others comes down to a few things. Really good brand name as Anker has made some really good products over the years. The retractable usb-c cable is absolutely a game changer. The 10,000 mah battery can charge my phone twice before needing to recharged. It's a small cube and for me I can easily just throw it in my pocket or if somebody was to add a metal clip they could just clip it to their clothes and forget about it. I travel a lot so you have no idea how awesome it is to have a device die and simply just plug it in to the bank and continue walking without having to find a power outlet. If I could suggest anything he would be for the brand to conclude a clip that we can use so I could clip it to my backpack. Well that's it ... show more
Reviewed in the United States on June 2, 2026 by JAMES C
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