Anker Zolo Power Bank 2025 Upgraded Version 20 000mAh 30W High-Speed Portable Charger with Built-in USB-C Cable Battery

This Anker 10,000mAh 30W power bank has quickly become my go-to charger for both travel and daily use. It strikes a great balance between size, power, and reliability, which is exactly what I was looking for. Pros: Fast 30W USB-C charging: Charges my iPhone 15 Pro very quickly and can even provide a solid charge to my iPad and MacBook in a pinch. USB-C in & out: Super convenient — one cable handles both charging the power bank and charging devices. Compact and portable: Small enough to fit in a pocket or backpack without feeling bulky. Trusted Anker quality: Feels solid, well-built, and performs consistently with no overheating. Great for travel: Perfect size for flights, road trips, and everyday carry. Minor notes: 10,000mAh is ideal for phones and tablets, but not meant for multiple full laptop charges — which is expected at this size. Only one device can fast-charge at full speed at a time. Overall: If you want a reliable, fast-charging, and travel-friendly power bank, this Anker model is an excellent choice. Great performance, smart design, and dependable quality — highly recommended. Read more

This thing is a beast. Charges very fast the device and battery last multiple charges. It’s bulky but it’s not terrible to carry around or throw in a bag. Great for travel or work or school or anything. Very good quality I recommend. It functions great. Read more

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! Read more

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. Read more

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. Read more

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. Update I bought the spare. Attached in the picture is the 10 & 20 for size comparisons. Both work really well. Read more