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Anker

Anker Nano 3-in-1 Portable Charger,10,000mAh 30W Travel Power Bank

Based on 3,107 reviews
Condition: Used - Like New
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$42.49
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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Nov 7
Order within 22 hours and 30 minutes

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At a glance

Condition
Used - Like New
Color
Black
Model
A637
Dimensions
4.25 x 1.22 x 1.97 in
Weight
8.82 oz
Connector Type
USB Type C
Battery Capacity
10000 mAh
Works with
Smartphone

Features 5

  • All-in-One Power: This innovative 3-in-1 charger is your travel essential, featuring a 10,000mAh power bank, a foldable charger, and a built-in USB-C cable, designed to keep you powered without restrictions.
  • 30W Two-Way Fast Charge: Whether using it plugged in or as a portable battery, the high-speed 30W output offers the power you need to get through your day. Fuel your iPhone 15 Pro from 0 to 50% in just 25 minutes.
  • Stay Powered Wherever: Perfect for short trips, with dimensions of only 4.25 2.01 1.22" and a weight of about 8.82 oz. Charge an iPhone 15 Pro up to 1.97 times or a Samsung S23 up to 1.84 times.
  • Two Devices, One Charge: Enhance your efficiency with a high-compatibility power bank that charges two devices simultaneously, keeping your tech prepared at all times.

Description

Anker 3-in-1 PowerBank Anker 45W 20K Power Bank Anker Nano Power Bank Anker Zolo Power Bank Anker Prime Power Bank Anker 733 Power Bank Anker Nano Power Bank 30W 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 Nano Power Bank offers an estimated 5500mAh to 7000mAh to power devices. How can I estimate the number of charges for my device? To estimate charges, use this formula: (Power Bank Capacity × 0.7) ÷ Device Battery Capacity. For example, an iPhone 15 with a 3,877mAh battery can receive about 1.92 charges from a 10000mAh power bank (calculated as (10000mAh × 0.7) ÷ 3,877mAh). How can I charge an iPhone 13 Pro Max with this power bank? To charge iPhones prior to the iPhone 15 series, an additional USB-C to Lightning cable is required. Is it normal for the power bank to get slightly warm during use? Slight heating due to efficiency losses in the conversion circuit is normal. The temperature of this Anker Power Bank meets the temperature limits of the IEC62368 certification standard.

Specs 29

Connector Type USB Type C
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: Saturday, Nov 7

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.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

This is what a portable charger should be
Color: Black
I cannot go back to a typical portable charger after this one. Everything you need is in one small factor. No need to carry around different wires. You just plug it into the wall when you are getting ready to go out, and by the time you're done, it's charged and ready to go. the prongs retract, and when you use it, you can hold the portable charger while using it in a bit of an odd position but clever. It charges super fast and also charges your devices fast. Roughly every percent of the portable charges 2 percentage points on my iPhone. It is an incredible value. The capacity is great if you just need to recharge your phone once or twice, but look elsewhere if you need tons of capacity. But for its purpose, it's versatile and amazing. ... show more
Reviewed in the United States on August 18, 2026 by Chris
Great Portable Battery / Charger
Color: Black
The Anker 3-in-1 10,000 mAh Battery and Charger is a pretty handy little gadget for anyone who’s always on the move and needs to keep their devices charged. Here’s what I think about it: **Design and Build Quality (4.5/5):** This charger is sleek and lightweight, making it easy to toss in your bag or even your pocket. It feels high-quality and looks nice, so you won’t mind pulling it out in public. **Charging Capability (5/5):** One of the best things about this device is that it can charge multiple gadgets at once. With its 10,000 mAh capacity, you can easily recharge your phone several times. Plus, it has multiple USB ports and a built-in cable, so you don’t have to worry about bringing extra wires along. **Performance (4.5/5):** When it comes to charging, this thing really delivers. Thanks to Anker's PowerIQ tech, it charges your devices quickly by figuring out the best speed. I was able to fully charge my phone from 0 to 100% in just under two hours, which is pretty great for a portable charger. **Versatility (5/5):** The 3-in-1 feature is a real winner. It works as a power bank, a wall charger, and a car charger, so you can use it at home, in the car, or anywhere else. This makes it super convenient and eliminates the need for a bunch of different chargers. **Portability (4/5):** While it’s not the lightest power bank out there, it’s still easy enough to carry around. The added functionality makes the slight extra bulk worth it for most people. **Battery Life and Durability (4.5/5):** The battery life is solid, and if you use it wisely, it can last for days before needing a recharge. Anker is known for reliability, and this one lives up to that reputation. It also has safety features to prevent overheating and overcharging, which is a nice touch. **Conclusion:** Overall, the Anker 3-in-1 10,000 mAh Battery and Charger is a great investment for anyone who needs to keep their devices charged on the go. It’s versatile, performs well, and looks good doing it! ... show more
Reviewed in the United States on August 9, 2025 by Basco
Perfect travel companion—fast and reliable!
Color: Black
I absolutely love this portable charger! I bought it specifically for a recent cruise, and it did not disappoint. It is incredibly convenient to just plug in my phone and toss it into my purse, allowing me to charge on the go while I enjoy my day. It powers up my devices quickly, and I’ve even started using it at home whenever I want to move around without being tethered to a wall outlet. Highly recommended! ... show more
Reviewed in the United States on September 4, 2026 by Diana
This thing is awesome
Color: Black
I brought this on a trip to Europe and couldn't be more pleased with it. It's not tiny but it's small enough to easily come along everywhere without taking up too much space in any small day pack you might use - or even just in a pants or jacket pocket. It's a great balance of compact size with capacity. I have a Galaxy S21 Ultra 5G phone and this charger was the perfect match. In a practical example, at one point after extensive use of navigation walking for many hours, my phone, with its 5000 mAh battery, was down to 30% charge. Well, sitting at a dinner break, I plugged in my Anker Nano 3-in-1 charger and it brought the phone from 30% to 100% in 30 minutes. At that point, I still had 50% charge remaining on the Anker. Operationally, it appears this Anker unit can recharge my phone at least 1.25x and up to 1.5x on a single charge. (It makes sense that 10,000 mAh does not actually yield me 2x recharge, since there is always some loss of efficiency. The numbers match up to Anker's estimate that this particular 10,000 mAh unit will give you between 5500 and 7000 mAh in actual charging, after accounting for loss in conversion circuitry, etc.). For me, this is more than enough to ensure that I could make it though even the longest day with my phone, without worry of winding up in a lurch. The two other great things about this charge are: 1) the AC wall charger plug that folds into the unit, basically allowing this to replace a wall charging block, and 2) the built-in USB-C cable, meaning you never have to worry about separate parts. What a great product! I would love it if Anker developed one of these 3-in-1 units with a 15,000 mAh capacity - if they could do it without only a very small increase in size and weight. (That would get me close to two full recharges. As of now, you have to jump to 20,000 mAh models which are considerably larger and do not have the built in AC wall plug) Overall, for a lifesaver capable of getting you at least one full recharge (and maybe a little more) and ensuring the longest day of phone power is not interrupted, this Anker unit is perfect. ... show more
Reviewed in the United States on February 17, 2025 by EC
Perfect size and great utility
Color: White
This is the 8th one I’ve purchased. Can’t recommend this enough. Good size. Can charge my phone up to 3 times and it works as a wall charger too. Perfect for travel.
Reviewed in the United States on August 20, 2026 by Bernie
LOVE IT. Using it every day!
Color: Pink
This product is the best idea!!!!! I bought this late last year, I have been using it every week since! Because I need to go my bf’s place every weekend for few days, he doesn’t have USB-c charger and I don’t want to bother buying new charger dock and cable. So this product become SUPER HANDY. I can charge my iPhone and my iPad!!! And I recharge it several times a day. I can charge my device while it’s on a plug. I can charge my device separately. It’s so versatile. I bring it to any trip I have. It’s so light!!! The only thing I would improve a bit on this product is to have longer retractable cable and something to hang on my wrist so it’s easy to hold on while I walk. BUT it has been the best product I have ever purchased, I even forgot about my magnetic portable charger since I have this. And I tried to search on the market, no one else has this style/idea. With this price, how can you say no?? ... show more
Reviewed in the United States on July 11, 2026 by qinmin149
Great but on the heavy side
Color: Pink
I love the color. I love that the cord is included and that makes it more compact. I don’t love the weight. It is heavier and thicker than my other battery, even when accounting for the additional need to carry a cube. I also like that is shows the battery life in percentage. My other battery only shows a paw with pads lit up. So one star removed for weight only. ... show more
Reviewed in the United States on September 29, 2026 by Hillary D
Great little USB-C power bank that needs no other cord
Color: Blue
I bought this portable charger (power bank) primarily to charge my Fire tablet when traveling, but now that I have a newer iPhone it can also charge my phone, as well as other devices like earbuds that charge via a USB-C port. Its 10,000 mAh capacity is about two charges for a phone or equivalent, low enough to be accepted by airlines. It has a short built-in cord that is USB-C on the end. It also has a USB-C port on the side that can be used to charge another device using a separate cord. It can charge two devices at the same time. It's a compact size but is a little heavy due to having the 10,000 mAh capacity. It charges a device pretty fast with its 30w output. I especially like that no cord is needed to recharge the power bank itself, as the plug flips open that goes into a wall outlet. This is a convenient power bank if you don't want to take a lot of cords. The blue color that I ordered is also pretty. Anker also makes a smaller, lighter 5,000 mAh Nano power bank with no cord that plugs directly into a phone or other device and is easier to carry in a pocket or small purse. Lightning and C-port versions are available. To recharge that power bank you need to use a cord and brick, however, as it has no flip-out plug for a wall outlet. ... show more
Reviewed in the United States on June 23, 2026 by a viewer
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