Just a friendly reminder to everyone that many countries don't allow you to fly with power banks over 100-160wh in your cabin bag (and power banks can never go in a checked bag). Some countries (like Turkey and India) can be quite strict about it. Answer from thekindwillinherit on reddit.com
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Reddit
reddit.com › r/onebag › best 20,000mah usbc power bank?
r/onebag on Reddit: Best 20,000mah USBC power bank?
October 10, 2025 -

Hey everyone, thanks in advance for any discussion and help. I appreciate it a lot

I’m coming from the anker at 325 (20,000mah which has 2 USBA, and 1 micro + 1 usbc In only to charge)

Since my new devices are all the USB-C (AirPod, iPhone etc) I’m looking for a power Bank that maybe has only USBC or maybe one USBA and the rest USBC

I’m leaving to backpack around Asia and Latin America(again) for the next couple years and want something that’s both reliable, and rugged. I recently got the ultra slim anker 5k MagSafe for day trips, but often times I do multi day hikes, or spend extended periods of time in the Amazon rainforest where having that larger capacity is invaluable.

I’m only travelling with my phone and AirPods (not kindle, no laptop etc)

What power banks would you suggest that aren’t wide in thickness like the newer block type ankers 5(akward to fit in my tech pouch). I also don’t want a built in cable

Thanks again!

Edit- I chose the I ended up going Iniu p62-e1. Was exactly what I was looking for

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Best Buy
bestbuy.com › best buy › cell phones › cell phone accessories › cell phone chargers & cables › portable chargers & power banks › anker - power bank (20,000mah, 30w) - black
Customer Reviews: Anker Power Bank (20,000mAh, 30W) Black A1384H11-1 - Best Buy
Anker - Power Bank (20,000mAh, 30W) - Black
Experience the fusion of power and portability with the Anker Power Bank (20,000mAh, 30W), designed to rapidly power up your tablets and smartphones. Equipped with an intelligent temperature monitoring system, it ensures safety by maintaining cool operation, well below international safety standards. Its high-speed charging is universally compatible, serving a variety of devices from leading brands such as Apple and Samsung. Encased in a compact, travel-friendly design, this cutting-edge technology provides access to quick charging wherever you go.
(4.6)
Price   $39.99
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Macworld
macworld.com › home › accessories › reviews
Ugreen Nexode Power Bank 20000mAh 165W with USB-C Cable review: all you need on your MacBook travels | Macworld
Ugreen Nexode Power Bank 20000mAh 165W with USB-C Cable review: all you need on your MacBook travels
This mid-range laptop power bank is powerful and boasts an integrated USB-C cable. The Ugreen Nexode Power Bank 20000mAh 165W with Retractable USB-C Cable tells you nearly everything you need to know about it in just its name. It’s a compact 20K laptop battery pack that can deliver a total of 165W of power, including 100W from its extremely convenient built-in USB-C cable. You can buy higher capacity portable laptop power banks and even units with two integrated USB-C cables, but the Ugreen Nexode 20K USB-C Cable power bank is a solid performer that might be everything you need on the road w
Rating: 4.5 ​
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CleverHiker
cleverhiker.com › home › backpacking gear reviews, expert tips, & trail guides › iniu 20000 pd 22.5w power bank review
INIU 20000 PD 22.5W Power Bank Review
INIU 20000 PD
However, this is quite a bit slower than most smaller-capacity power banks, so charging two 10,000 mAh power banks may be a better solution for some use cases. We used a QC 3.0 wall charger and a standard USB-C cable for all our tests to keep things fair. INIU 20000 PD’s Digital Display is ... The INIU 20000 PD 22.5W is our second-best large-capacity power bank in weight, charging speed, and portability, and it ranks as the best 20,000 mAh power bank in many categories. It is the second most efficient power bank out of all the banks we tested, which means you get a lot of power for what you
Rating: 4.4 ​
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Reddit
reddit.com › r/usbchardware › 20k powerbank suggestions?
r/UsbCHardware on Reddit: 20K Powerbank suggestions?
April 30, 2025 -

While i own many Xiaomi powerbanks, i want to give out some old Xiaomi ones while keeping at least one old that can charge my iPod Classic (The latest Xiaomi powerbank that i own, a Mi 50W PB 20000, DOESN'T charges my iPod, wich's weird since the other 20k older ones that i have DOES. So i want to keep at least ONE old one that does!)

I'm looking for the following specs:

-20K is a MUST (25K is ok too)
-At least 45-65W of power output (Fast/Ultra Fast charge on a Galaxy S23+ and around, like when plugged to the official SAMSUNG 45W wall adapter USB-C thing)
-1-2 USB-A and C ports (Phones, devices and of course the iPod Classic. The more ports the better)
-MUST be able to charge the iPod Classic as the only connected device! (This is IMPORTANT)
-Battery number % LED, NOT 4 dots etc (Minus one exception mentioned below, but...)
-Be able to get charged in like 2-3 hours via USB-C cable with a 45W C-to-C wall adapter (For "hurry up!" moments)
-Must be able to be sent to Spain (Amazon sense)
-EUROPEAN CONNECTOR COMPATIBLE!!

Options that i've so-so found so far are, with pros and cons:

-UGREEN Nexode Power Bank 100W 20000mAhUGREEN Nexode Power Bank 100W 20000mAh

This one seems to fit all the needs, but no info about the iPod topic, but also some people says that after 3-4 months since their purchase that they stopped working or something, wich's a bit suspicious

-Xiaomi 33w Power Bank 20000mAh Integrated cable

While it is 33W, it has a self-included cable to be charged with, for example, my 45W SAMSUNG USB-C to C wall adapter. Although the cable's pretty short and no battery % shown

-Xiaomi 165w Power Bank 10000 Integrated Cable

Although it's 10K and very small? it has a strong output, but a comment on Amazon says that it's got 4 2500Mah batteries inside and while recharging a drone (Not my case) it wasn't enough, or something, wich might not mean that it could have a proper output or something

If someone owns one of these powerbanks (Specially the UGREEN) and has an iPod Classic, can ya guys test out if they charge the iPod correctly, please?

If there are other trustworthy alternatives lemme know. I've seen ones like FRESH N REBEL, Belkin (A bit overpriced tho), etc...

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Limitless Innovations
limitlessinnovations.com › products › totalboost-20-000mah-power-bank-with-2x-usb-and-type-c-port
TotalBoost 20,000mAh Power Bank with 2x USB and Type-C Port– Limitless Innovations
TotalBoost 20,000mAh Power Bank with 2x USB and Type-C Port
Boost your device anytime, anywhere with the TotalBoost! This 20,000mAh power bank features 3 quick-charging ports that are compatible with both Type-C and standard USB devices and come with a 3-in-1 charging cable, so you never have to worry about having the right kind of charger or cable again. The ultra-portable design is sleek, slim and features a detachable Carrying Strap so traveling with your backup power source is easier than ever! Never worry about how much battery you have remaining when you leave the house, just carry the TotalBoost and you are covered. The digital battery level ind
Price   $99.99
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Backpacking Light
backpackinglight.com › home › topics › gear forums › gear (general) › nitecore nb20000 gen 3 performance tested
NiteCore NB20000 Gen 3 Performance Tested - Backpacking Light
July 6, 2025 - Pretty consistent results. However, I’m disappointed. If you google the battery capacity of the iPhone 16 Pro Max, it’s 4685 mAh. The average charging percentage I was getting out of a full charge of the battery bank was around 180%. This calculates to about 8667 mAh. Way lower than 20000 mAh.
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TechRadar
techradar.com › phones › phone accessories
The best power banks 2025: portable batteries for your iPhone, Galaxy, and more, thoroughly tested by our experts
October 23, 2025 - The standout feature is the integrated USB-C cable, which our reviewer found folds away neatly and feels secure. This, plus two extra ports for versatility and a bright and clear display for battery checks, makes it a great choice for on-the-go ...
Find elsewhere
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Reddit
reddit.com › r/anker › best 20,000 pd usb-c power bank?
Best 20000 PD USB-C power bank? : r/anker
January 1, 2023 -

For some reason there’s so many options out there for an anker power bank that’s 20k pd with usb-c. Is one better than the others or should I just get the least expensive one I can find ? For example if one is lighter to carry around or charges faster , I’d consider that worth paying extra for

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Nitecore
nitecorestore.com › home › nitecore nb20000 gen 3 dual usb-c power bank
Nitecore NB20000 Gen 3 Dual USB-C Power Bank – Nitecore Store
Nitecore NB20000 Gen 3 Dual USB-C Power Bank
20,000mAh Capacity Power BankThe Nitecore NB20000 Gen 3 Power Bank is a lightweight, portable power bank with a capacity of 20,000mAh, designed to meet all your charging needs no matter where you are. Encased in a solid carbon fiber frame, the NB20000 Gen 3 is lighter and smaller than its predecessor, with a sleek, modern, minimalist design. This makes it the ultimate portable backup battery charger for road trips and outdoor enthusiasts who enjoy trail running, hiking, camping, and more. It is also a great addition to your emergency prep kit or bug-out bag.Dual USB-C PortsCompared to its pred
Price   $99.95
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Roundtable Co-Op
roundtablecoop.com › home › reviews › belkin boostcharge power bank 20k review
Belkin BoostCharge Power Bank 20K Review - Roundtable Co-Op
July 3, 2023 - The BoostCharge Power Bank 20K provides your USB devices with up to 20,000mAh of power, or in real terms up to a theoretical max of 78 hours of extra battery life for compatible iPhones and other USB devices.
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Android Authority
androidauthority.com › home › mobile › mobile accessories › the best 20,000mah power banks you can buy
The best 20,000mAh power banks you can buy
May 16, 2024 - As mentioned, the Prime is probably overkill for phones, but with 200W total output, it can charge multiple devices at high speed including tablets and laptops. In theory you could charge two laptops simultaneously, each drawing up to 100W — just don’t expect to power a gaming system while you play. The bank is equipped with two USB-C ports and one USB-A connection.
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The AU Review
theaureview.com › home › technology › tech review: cygnett 20,000mah usb-c power bank: you’re gonna carry that weight
Tech Review: Cygnett 20,000mAh USB-C Power Bank: You're gonna carry that weight - The AU Review
November 29, 2022 - This makes the device perfect for the professional in-transit who struggles with the modern problem of always needing to charge devices but never being able to find a power point. It’s also priced so sensibly I didn’t believe it at first. The Cygnett 20,000mAh Portable Power Bank retails at very reasonable $169.95 AUD.
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Reddit
reddit.com › r/wildernessbackpacking › help finding a 20,000 mah power bank.
r/WildernessBackpacking on Reddit: Help finding a 20,000 mah power bank.
September 10, 2024 -

Hey there y'all, I'm going to go on the Arizona Trail soon, and was hoping for some advice on a power bank. I was wondering if anyone could point me in the right direction here.

First of all, I will not lie, even though I plan NOT to use electronics much and enjoy the nature, I would love the security of the bigger capacity of a 20,000 mah bank, even though I know I could be fine with a 10,000, most likely. I want to take my pictures and be able to be in touch with my folks back home if available, and I'm considering the extra 10k power a luxury item, so can survive the extra oz.

I was looking at the Anker PowerCore 325, but the recharge time is abysmal. Does anyone have an alternative 20,000 mah bank that does not take such a long time to charge?

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Tronsmart
tronsmart.com › home › other products › quick chargers › portable chargers › pb20 20000mah portable power bank
Tronsmart PB20 20000mAh High Capacity Power Bank Portable Charger
A large capacity power bank (20000mAh). Very portable design, and good for many recharges of my devices (mobile, tablet, mouse, Bluetooth headphones, etc.) I always carry it in my bag now :P. What made me opt for this one has been mainly that ...
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Neowin
neowin.net › news › review: cuktech's 45w 20,000mah power bank is affordable, fast, versatile, convenient
Review: CUKTECH's 45W 20,000mAh power bank is affordable, fast, versatile, convenient - Neowin
CUKTECH 45W
With 45W output (55W for Xiaomi devices), this power bank comes in at a price that can't be sniffed at, and the best bit is that it is genuinely excellent quality and has a neat trick up its sleeve.
Rating: 9/10 ​
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Anker
anker.com › home › 20000mah powerbank
Embrace Unlimited Power With 20000mAh Power Bank - Anker US
Moreover, our high-capacity power ... With ActiveShield 2.0 technology, our 20000 mAh power banks monitor their temperature 3 million times a day, ensuring unparalleled safety protection over the course of use....
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EcoFlow
ecoflow.com › us › blog › 10000mah-vs-20000mah-power-bank-guide
10000mAh vs 20000mAh power bank: Which Is Actually Better? | EcoFlow JP
Generally, 10,000mAh power banks ... option. While 20,000mAh models have a higher initial cost, they often represent better value in terms of cost-per-mAh, giving you more charging capability for your money....
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Powerbankguide
powerbankguide.com › best-20000-mah-portable-chargers
Best 20000mah Power Banks – PowerBankGuide
13.4 oz (400 gm) weight of Anker PowerCore Speed is best in class for 20000mah power bank ... Also supports Quickcharge 2.0 from all three ports. Digital battery-level gauge is a very handy. Unmatched number of accessories, USB-C to USB-C and a USB-C/micro-USB to USB-A cable included ...