Anker Zolo Power Bank (2025 Upgraded Version), 20,000mAh 30W High-Speed Portable Charger with Built-in USB-C Cable, Battery Pack for iPhone 17/16 / 15 Series, Galaxy, and More
$36.99
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Product description
1 About Anker Zolo
2 Stylishly Designed
3 Multi-charging
4 Two-Way Charging
5 Built-In Cable
1 Real-Time Protection
2 Digital Display
3 Durable Cable
4 Universally Compatible
5 Product Comparison
1 Power for Every Moment
2 Power for Travel
3 Power During Breaks
4 Power for Everyday
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.
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Customer Reviews
4.6 out of 5 stars 18,977
4.5 out of 5 stars 242
4.5 out of 5 stars 242
4.6 out of 5 stars 606
4.6 out of 5 stars 18,977
4.6 out of 5 stars 2,867
4.4 out of 5 stars 756
Price
$36.99$36.99
$44.99$44.99
$42.99$42.99
$54.79$54.79
$25.99$25.99
$44.99$44.99
$79.99$79.99
Main Feature
Built-In C Cable
Built-In C Cable
Built-In C Cable*2
Built-In Cable*2
Built-In Cable
3-in-1 Charger + Built-In
Built-In AC Plug
Charging Ports
Built-in C Cable + 1C1A
Built-in C Cable *2 + 1C1A
Built-in C Cable + 1C1A
Built-in Cable L+C+1A1C
Built-in C Cable + 1C1A
Built-in C Cable + 1C
USB-C*2
Maximum Output Power
30W
45W
45W
30W
30W
30W
65W
Size
4.72*2.90*1.24 in
4.72*2.90*1.24 in
4.72*2.90*1.24 in
4.72*2.90*1.24 in
4.32*2.58*0.98 in
4.25*1.97*1.22 in
4.53*1.65*1.71 in
Weight
0.78lb
0.78lb
0.8lb
0.8lb
0.47lb
0.55lb
0.67 lb
Compatible Devices
iPhone17/16/MacBook/Galaxy
iPhone17/16/MacBook/Galaxy
iPhone17/16/MacBook/Galaxy
iPhone17/16/15/14/MacBook
iPhone17/16/MacBook/Galaxy
iPhone17/16/MacBook/Galaxy
iPhone/MacBook/Galaxy
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.
Safety Upgrade, Certified Quality: Now equipped with upgraded battery cells that are CB-certified for international electrical safety standards. Shop with confidence and charge with peace of mind.
13 reviews for Anker Zolo Power Bank (2025 Upgraded Version), 20,000mAh 30W High-Speed Portable Charger with Built-in USB-C Cable, Battery Pack for iPhone 17/16 / 15 Series, Galaxy, and More
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$36.99
Barry R. –
USB C cable is attached
Great product from Anker which has a reputation for quality. Having that USB C cable permanently attached is a game changer. No more fumbling around with long cables or not having one available. Small enough to fit in some pant pockets together with an iPhone. Charges very fast. I take it with me backpacking. No more dead phone when I need it in the backcountry. I got the 10,000 mah one and that really is all I need.
Mikaela Jamison –
Reliable, charges fast
Very convenient to have the cord built-in. I like the screen that shows how much battery you have left. The snap for the cord is also somewhat strong, and although I wouldn’t put it on the outside of my bag because I don’t want it getting beat up or scratched, I think it would be fine to clip this via the cord on the outside of your bag or backpack. It’s somewhat heavy and awkward to fit in a bag, but it’s also paradoxically small. It charges my devices very quickly, but takes a while to charge itself. But if I am doing anything serious that might require a charge on the go, I take this with me because I know it will have me covered!
AJ –
This may be the greatest powerbank of all time.
I really like this little Anker power bank! For the promo price of $20 I paid, it honestly might be the greatest power bank of all time. It has become my go-to travel companion for medium to long trips because it is surprisingly light and compact, easy to slip in a bag or even a pocket.The built-in USB-C cable feels sturdier than I expected. I originally thought it would be the weak point, but so far it has held up well. The digital display is also a huge upgrade over the usual 4 or 5 dots most power banks use. It is so much better knowing the exact percentage instead of guessing.It charges devices quickly, and I am able to get two full charges out of it for my iPhone 13 pro max. The build quality feels solid, just like every other Anker product I have owned. The only time it got hot for me was when I tested it to see how much it would charge my Macbook. Otherwise heat is a nonissue.This is an excellent, compact charger with a ton of value for the price. I would not hesitate to recommend it to anyone.
Mj –
10/10.
This product is essential, offering reliable and rapid charging. The cable length is limited, necessitating that the portable charger be kept with your device unless a USB Type-A connection is utilized, which is not compatible with newer phone models.It is not particularly heavy, making it convenient to carry. I purchased it approximately six months ago, and it continues to function well.
James Sandoval –
Reliable Power You Can Count On
As a parent who’s always on the move, this Anker 10,000mAh Portable Charger has become one of my everyday essentials. It’s compact, lightweight, and powerful enough to charge my phone, tablet, or even my laptop when I’m traveling or running errands with the kids. The 30W fast charging really delivers—you can top up a phone in no time, and the USB-C in/out port makes it super convenient. It feels solid, holds a charge well, and fits easily in a pocket or bag. Honestly, it’s the kind of backup power you don’t realize you need until you have it—and then you never want to go without it.
Charles Stringfellow –
Perfect charger
This charger is perfect for my needs. My son plays baseball and I was somehow given the responsibility of running GameChanger. Well, when you play 4 games in a day, the phone battery needs to be recharged. This device is perfect for that. It fits in my pocket and comes with a cord that plugs directly in my phone. It takes about 4 hours to fully charge and charge my phone around twice. I’ll be buying another one just to have a spare.
Wilde Geist –
Best ever Battery! Anker R U L E S !!!
I always buy Anker when possible. This one is especially nice. Charges crazy fast. Charges other things as crazy fast. I love everything about it!UPDATE: I just bought two more of these. I use the first one so much it’s not funny. I don’t really need two more but for fears Anker might discontinue these for some crazy reason like 20,000 bigger Sister to this one I thought I best grab them while they are around. Just so useful. Mine fits in my purse or pocket. Extremely handy for my Vape. I can recharge my Vape in a couple minutes. I have a couple Belkin big batteries around 20,000 or more that are heavy and clumsy and take a very long time to charge up. Both are brand new but I never use them because this Anker does all the work so fast and easy. Pack those big Belkin up for an emergency. Yeah I am very pleased with all my Anker products so far. My big Anker Solix 522 will get some Solar Panels here soon. My Anker Soundcore II will get put back to use here shortly too; a very nice ( extremely loud too ) Bluetooth Speaker with a sound so sweet and clear it’s unbelievable. And the durability factor; takes one hell of a beating and sounds as good as new. And plays over 24 hours!!! And can charge other devices and still play Sound files.Another Update: I had to cross a small River and everything was submerged that I was carrying and my phone was killed and my Vape. The only two Electronics to survive the crossing was my O Lite Flashlight and my Anker Battery. Amazing Batteries! I don’t think it’s waterproof either. Just so well made it survived what it’s not even made to live through. These things are so cool! They charge very fast. Anything I plug it into charges way faster than any other means. And to charge these up to Full is fast too. I use the hottest power I can find, 65 Watt or 90 Watt Charger and it takes the charge no problem and in no time is full. One of these little batteries will do my Vape and my Phone and Tablet all day and night long. I wish I could find its larger capacity sibling the 20,000. I guess Anker quit making them?
Diana Brown –
Heavy duty & fast charging
I have had this battery for 2 months and it has not disappointed. It takes a bit to fully charge when drained down but once it’s charged, it has given about 6 full phone charges (more if I don’t wait til 15% is left). Plus, it charges my phone super quickly with its built in cord! I love it and plan on purchasing one for every family member. P. S. While portable, it is heavy. If you continue using your phone while it charges, it does start feeling like you’re carrying a brick after a while. Doesn’t get hot but best to detach from your phone while charging anyway.
laetitia chaigneau –
Je suis très satisfaite de ma batterie, elle charge mon téléphone portable très rapidement.Enchantée de mon achat.
عبد الحليم النجار –
ممتاز وسريع وسهل الاستخدام
Lubranello –
Uso questo powerbank da circa 4 mesi. Scelto per le dimensioni a saponetta e per la possibilità del cavo integrato. Comprato prima dell’estate, da allora lo porto sempre con me nella mia sling da 2 litri. I 10.000mah sono il giusto compromesso tra capacità energetica, peso e dimensioni soprattutto se viene usato per ricaricare i dispositivi di una sola persona. Ci carico uno smartphone con una batteria da 5000 circa due volte considerando però che non arrivo mai con una batteria mai al di sotto del 30/35%. È possibile caricare contemporaneamente 3 dispositivi e in confezione viene fornito un ulteriore cavo usb-c usb-c, corto ma sempre meglio di niente. Cosa importante è che può essere ricaricato mentre a sua volta carica altri dispositivi.Il display è minimale e mostra solo lo stato di carica delle batterie interne.Le uniche pecche, a mio avviso, sono le plastiche che si graffiano facilmente e la sua ricarica a soli 20W che fa si che una sua carica completa duri circa 2.30h. Per il resto è un ottimo prodotto offerto ad un buon prezzo.
Frank Van Gucht –
Top
Sharon P –
This a great power bank. I get multiple charges from this unit.