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- – 4-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
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Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Friday, Oct 30
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At a glance
- Condition
- New
- Color
- Black
- Size
- 20000 MAh
- Model
- A1689
- Dimensions
- 4.72 x 2.89 x 1.24 in
- Weight
- 365 g
- Connector Type
- USB Type C
- Works with
- Smartphone
Features 5
- Go Beyond with 20,000mAh: Carry the power you need to charge your iPhone 15 up to 4 times or your Samsung S24 3.79 times, perfect for extended travel and long days.
- 30W Two-Way Fast Charging: Charge quickly with 30W output and recharge just as fast with 20W input, keeping your devices ready in no time. Boost an iPhone 15 from 0 to 57% in just 30 minutes.
- Durability on Demand: Features a 5.98-inch built-in USB-C cable that's not only convenient but also extremely durable, designed to withstand over 10,000 bends. This compact power bank measures 4.72 2.89 1.23" and weighs only 12.45 oz.
- Intelligent Power Management: Equipped with ActiveShield 2.0 technology that monitors temperatures 3 million times per day and adjusts power output for reliable performance.
- What You Get: Anker Zolo Power Bank (20K, 30W) with a 5.98-inch (15.2 cm) built-in USB-C cable, welcome guide, 18-month warranty, and our friendly customer service.
Description
Is it normal for the charging speed to be slow? The charging speed depends on whether the charger and cable can meet the power bank's requirements. Using a 20W fast charger, the power bank can be fully charged in approximately 5.1 hours. Can it charge low-current devices like earphones? Yes, this power bank features a low-current charging mode.Simply double tap the power button to enter this mode to charge small electronic devices and double tap again to exit! Does it support charging while discharging? Yes, the power bank supports pass-through charging with a max input and output of 5V/3A. Note that it does not support simultaneous charging and discharging for laptops. For longevity, avoid charging your phone while charging the power bank. How can I estimate the number of charges for my device? To estimate charges, use this formula: (Power Bank Capacity × 0.65) ÷ Device Battery Capacity. For example, an iPhone 15 with a 3,877mAh battery can receive about 1.67 charges from a 10,000mAh power bank (10,000mAh × 0.65 ÷ 3,877mAh). Why is my power bank providing fewer charges than expected? Energy loss during charging, due to inefficiencies in the battery cells and circuitry, results in a 30% to 45% capacity reduction. Therefore, a fully charged Anker Zolo 20,000mAh Power Bank typically provides about 11,000mAh to 14,000mAh. Anker 20K 30W Power Bank Anker 20K 45W Power Bank Anker 20K 45W Power Bank Anker 20K 30W Power Bank Anker 10K 30W Power Bank Anker Nano 3-in-1 Anker 65W Power Bank
Specs 28
| Connector Type | USB Type C |
|---|---|
| Brand | Anker |
| Battery Capacity | 20000 mAh |
| Color | Black |
| Special Feature | Built In Cable |
| Other Special Features of the Product | Built In Cable |
| Voltage | 20 volts |
| Power Source | Corded Electric |
| Amperage | 3 A |
| Number of Ports | 2 |
| Battery Charge Time | 5 hours |
| Reusability | Rechargeable |
| Number of Outlets | 3 |
| Antenna Location | Phone |
| Battery Cell Type | Lithium Polymer |
| Model Number | A1689 |
| Number of Items | 1 |
| UPC | 194644038403 |
| External Testing Certification | / |
| Manufacturer | Anker |
| Number of Batteries | 1 C batteries required. |
| Mfr Part Number | A1689011 |
| Warranty Description | 18 |
| Item Weight | 365 g |
| Item Dimensions L x W x Thickness | 4.72"L x 2.89"W x 1.24"Th |
| Unit Count | 1 Count |
| Item Dimensions | 4.72 x 2.89 x 1.24 inches |
| Battery Weight | 270 g |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Oct 30
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Perfect for concerts!!
Color: Pink
Size: 20000 MAh
This power bank works just as good as my much larger one. I bought this to use at the BTS concert. I looked for something lightweight, heave duty and portable. I took several videos at the concert on my Samsung Galaxy S20, and was still able to charge my phone twice from low battery and once from mid-battery. That was on the 11th. Today, the 21st, I went out to grill and didn't want to grab a charger so I snatched up my power bank. My phone was at 33% when I started grilling. I listened to music the entire time. It was 100% after 30 minutes on the power bank, and I still have 39% battery on the power bank. I love that the display shows you how much battery you have left. Oh, and I charged my ear buds twice too. I am extremely pleased with this product. Simple, but great power bank to bring to a concert. Would buy again for sure!
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Reviewed in the United States on August 21, 2026 by Estelle Soucy
Best Power bank ever created
Color: Black
Size: 20000 MAh
The best power bank ever created. It is so worth it. Bulky but works so well that it makes up for it. Perfect for any device compatible with USB-C. Will last multiple days with its large battery life. Can’t stress enough how good it is.
Reviewed in the United States on October 15, 2026 by Sukhi Peart
Very Good Product
Color: Black
Size: 20000 MAh
★★★★★ I’ve been using this Anker power bank for a little while now and honestly really like it. It charges my phone quickly and the battery lasts a good amount of time. I also like that it’s easy to carry around without being too bulky. The build quality feels solid and it works exactly how I expected it to. Definitely happy with the purchase and would recommend it to anyone looking for a reliable power bank.
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Reviewed in the United States on August 11, 2026 by Not good quality of fabric and looks different than picture.
FANTASTIC PRODUCT
Color: Black
Size: 20000 MAh
If you need a high quality power bank, this is the one for you! I recently brought this on a two week trip to the UK and had it with me the whole time. While the battery takes a long time to charge, it also lasts a LONG time. I was charging my phone, along with my mom's several times a day throughout the trip. I also used it to charge my camera batteries and my laptop. I am very happy with how quickly this charges other devices. The power bank has a USBc cord that works with input or output, So there is no need for an extra cord to carry around. It does get warm when charging, but I didn't think it was overly hot. 10/10 recommend!
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Reviewed in the United States on September 14, 2026 by Lynn
4 Full Charges and Built To Last!!!!!!!
Color: Black
Size: 20000 MAh
Man, this Anker Zolo 20,000mAh power bank is seriously built like an absolute tank. It features a super smooth, slick design that just feels premium in your hand, but it’s tough enough to take a beating without skipping a beat. One of the coolest design choices is the built-in USB-C cord that comes right out of it, so you never have to scramble around looking for a loose cable. Plus, it has a physical button to click it on and gives you two extra USB-C plugs right on the frame so you can hook up multiple things at once. For how inexpensive this thing is for the sheer quality you get, it’s just an excellent choice all around. I’ve been taking this thing all over town inside my backpack, and it has been super convenient for keeping my gear alive while I’m on the move. Since I use my phone a ton out on the streets, my battery tends to die pretty quick, but this brick completely saves the day. This massive 20,000mAh capacity easily lasts me through 4 full charges before the bank itself runs out of juice. You get a ton of heavy-duty uses out of it on a single charge, making it a reliable backup generator when you’re out running errands or working a long shift. When it does come time to feed the power bank or top off, it charges up incredibly fast. It doesn't waste any time pushing power through the lines, which is perfect when you need a quick boost. It’s Inexpensive, it looks totally cool, and it delivers elite performance without breaking the bank. If you need a rock-solid portable charger that you can just throw in your pack and forget about until you need emergency power, you definitely need to grab one of these.
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Reviewed in the United States on June 2, 2026 by KeithP775
i LOVE this!!! but it is heavy and does take a while to charge.
Color: Blue
Size: 20000 MAh
i take this everywhere with me!!! the only draw back is that it is heavy. it’s a little big but i don’t mind it because it still fits in my small purses. it also does take a while to charge HOWEVER it can charge my phone up completely about 3-4 times. i even use it to charge my laptop sometimes and it still has juice left in it. overall, i would recommend just keep in mind that it’s not perfect.
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Reviewed in the United States on September 27, 2026 by Bre
Quality, Dependable Power Bank to Charge Devices
Color: White
Size: 20000 MAh
My husband and I felt it was time to upgrade our current power bank and he did the research and found this one ranks at the top of customer satisfaction and quality. It feels solid, charged quick and works great. I like the minimalist, clean design. It is compatible for our phones and iPads. We are very happy with this purchase! Now I am confident that we can charge our devices if the power goes out!
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Reviewed in the United States on September 9, 2026 by Bmwcarol
OUTSTANDING portable charger to say the LEAST! 😌
Color: Black
Size: 20000 MAh
This charger is the best purchase I’ve ever made. Ive been raving about this from the moment I got it till now! I’ve had this product for almost two months now & this is a pure life saver!! It’s so portable. I take it literally EVERYWHERE with me. I love the digital display as well. I kid you not, I’ve charged it to 100% and my phone was at 5% after it fully charging my phone the battery only dropped down to 84%. I can easily get 3 full charges out of it if I need. I especially love how seamless the cord is. It’s built in & can be covered when not in use. No annoying cords to hassle with!! Also, this device also includes a USB-C and a lightning port so you can also plug in external cords if you please! Absolutely adore this product. I can’t stop telling people to go make this purchase. You will NEVER regret investing money into a portable charger, let alone an OUTSTANDING portable charger for a valid price tag.
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Reviewed in the United States on July 28, 2026 by Hanan Umar