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
$42.99
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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 22,530
4.5 out of 5 stars 675
4.5 out of 5 stars 675
4.5 out of 5 stars 739
4.6 out of 5 stars 22,530
4.6 out of 5 stars 2,670
4.4 out of 5 stars 856
Price
$42.99$42.99
$35.99$35.99
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$54.79$54.79
$29.99$29.99
$49.99$49.99
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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.
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10 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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$42.99
Mark –
Major Upgrade from the Previous Version – Smaller, Lighter, Same Power
I’ve actually owned the first version of this battery pack, and the difference with this newer model is immediately noticeable. The original one I had was significantly bigger and bulkier, so I was honestly surprised (in a good way) that this updated version is much more compact while still delivering the same performance and specifications. It feels like a true upgrade rather than just a refresh.From what I experienced, the older, larger version was eventually recalled, so it’s reassuring to see that this newer model not only addresses those concerns but improves the overall design.Performance wise, it does exactly what you want from a high quality battery pack. It charges devices quickly and consistently, holds a solid charge over time, and is reliable when you need it most. I’ve used it for my phone and other devices, and it handles multiple charges without any issues.A few things I really like:• Much more portable and easier to carry around compared to the previous version• Solid build quality that feels durable and well made• Fast and efficient charging• Great capacity without the added bulk• Perfect for travel, work, or just keeping in your bag for everyday useOverall, this is a big improvement over the original. If you were hesitant because of how bulky older versions were, this one fixes that completely while still delivering the same power. Definitely worth it.Added photo next to wallet for scale
Teach4Fun –
Charges and Convenient
Seems like a solid, sturdy product! I ordered the white, the labeling on the back of the unit in grey/silver is a little light, but readable. It came in packaging which spoke “quality.” Carefully and precisely wrapped. The unit was 24% charged when I opened it. It fits in the palm of my hand, but it would be a little heavy for a pocket. Purchased for travel in carry-on. I need this to charge an Apple iPhone 14 Plus. The built-in adapter did not fit the cords for my phone. The directions state to use the same brand cords (Anker). I ended up ordering the Anker USB Type C Lightning Cable Upcycled Braided cord and the Anker Nano USBC Charger Block, 30w. With these two, I was able to charge the Anker Portable Charger to 100% capacity in about an hour. Then I plugged in my iPhone and charged it to 100% . The unit is new, so I haven’t tried out the battery life yet. First impressions are a quality, well-made unit.
Doug M –
The Only Power Bank Brand We Trust—Fast, Reliable, and Built to Last
We currently own three different Anker portable chargers, and they have become absolute essentials for our family. The most impressive thing about them is the longevity; even after a couple of years of heavy use, they still hold a significant charge.The charging speed is excellent—it’s noticeably faster than the generic banks we’ve tried in the past, easily getting our phones back to 50% in about 30 minutes. Whether we are traveling or just away from an outlet for the day, these chargers are reliable, compact, and worth every penny. If you want a ‘set it and forget it’ piece of tech, this is it.
Amanda Root –
Great quality
Love this power bank. I fully charged it 5 days ago and it is still at 100%. We lost power at my house a few days after I received it so I had an excuse to use it, it charged my phone very quickly. It does not come with a charging block and the charging cable is very short. Luckily I found a 6 ft Anker charging cable and charging block at CVS, so that fixed that problem. Love how small it is, fits easily in the cord organizer case I have for my purse. The display is very easy to read and it’s extremely ease to use. You have to scan a QR code for the instructions but you really don’t need them it’s that easy to use.
Steve –
Not perfect, but closer to the target performance than most other alternatives at a great price.
Okay, let us cover the good part first: It has great PD compatibility. It can do 5V@3A, 9V@3A, 10V@ 2A, 12V@2.5A, 15V@2A, 20V@1.5A. So, that is more than many other power pack out there. (however there are some limitations that I will get to in the later section). The output is max of 30W (I confirmed it). It says it is 10Ah but that is rated at 3.7V which means it is only 37Wh. I have drained it from 100% to 0% and managed to draw 31Wh out of the pack that is rated for 37Wh. That is 84% which is better than just about all the power packs out there that I have experienced. Most other power packs out there can barely do 50% of the rated capacity or 65% on the better ones. The display is nice to know what % of capacity remaining. A sustained draw of 2A @5V will make the pack fairly warm to touch. The USB-C cable that comes with the pack is nice to have. The size is also fairly compact which is easier to carry.Now, let us talk about the down sides: I cycled my first power pack and tried to measure the power rating. The pack PD outputs died after draining it on a constant load of 30W (1.5A @20V) for about 10 minutes. After that, it can only deliver 5V/2A. Then the cabled terminal shows “low voltage”. I am guessing the USB PD IC died inside the power pack. So, Amazon sent me a replacement unit. So far that unit has worked without dying yet. But I would keep an eye on the unit if high power dissipation is needed. I was loading the replacement unit at 1.5A@15V, once it drained to about 25% in capacity, it no longer can sustain that output. Those voltage/amp ratings are really only correct when battery is more than 50% in capacity (that is expected for most lithium ion batteries where peak current output will fall as capacity reduces). The 5V/2A output has no problem sustaining it until 0%. Charging is also not as high as it is indicated. On the back of the unit, it says 5V/3A charging rate, the unit can only sustain 5V/2A charging rate. So, a full charge will take about 3 hours.Overall, it is a decent power pack. I am a fan of Anker products. Although it isn’t perfect or delivering everything it is claiming, it is way closer to its claims than just about any other power packs I have used. If the application only needs 5V/2A(very popular mode), then it can last 3 hours easily.General complain, I really don’t like how power packs are rated or advertised by xxxxmAh. Why don’t we just use Ah? 1000mA is 1A. Isn’t that simpler? Also, those ratings are misleading. The Wh is much more accurate. Of course, most packs can’t deliver those energy level at all the voltages. So, it is another misleading information. At least Anker has delivered the real world rating that are closer to their claim than others.And for the price, I think it is a great value. So I would recommend getting it over other brands. If a 30Wh pack (5V/2A for 3 hours) is good enough for the application, then I think this is the one to get.
Stéphane –
Auker marque parfaite et toujours des prix compétitifs. Qualité des produits et fonctionnalités au top. J’apprécie de pouvoir modifier la puissance délivrée par la batterie lors de la recharge de certains appareils ne prenant pas en charge les recharges rapides. 2 clics sur le bouton, un petit voyant vert s’allume et la batterie délivré un peu moins de puissance pour maintenir la durée de vie de l’équipement rechargé
Mohamed hussein –
جيدا جدا
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.
anthos –
Ottimo prodotto. Riesci a caricare il mio iPhone ben 2 volte!
Przemysław Kochel –
Super