First thing to know - most of the power banks for sale on Amazon exaggerate their capacity. In most cases they are actually half or less.
This UGreen power bank actually has the claimed capacity (I tested). The only other brand I know of that has the actual advertised capacity is Anker.
*Do not* buy from the various brands that have seemingly randomly generated names like "FLIPTREK" or whatever.
If this power bank seems pricey, it's because *that's what it should actually cost* and if you see a "bargain", well, that's a scam. Same thing with USB thumb drives and many other types of products.
But I digress.
This UGreen power bank is *just right*:
1) charge other things while charging
2) the perfect ports: two USBC and one USBA for older stuff
3) extremely high power output and input: 145W output and charging
Because this is *truly* a 25000mAh charger, it can recharge my (aging) MacBook Pro 3x over.
It can also do it *while I'm using the laptop*. With other power banks that don't have 100+ watt output, the laptop basically slowly loses charge even with the power bank charging it - it just loses charge more slowly than if there were no power bank connected.
Similarly, if you have an Oculus Quest or other wireless headset, you can stick this power bank in your jeans pocket, run a cord under your shirt, and basically play indefinitely: this power bank can recharge the Quest 3 more than 10x times).
The high power output also implies high power input, that is, fast charging. Despite the massive capacity, this UGreen power bank recharges in just over an hour in my experience.
Two key tips:
1) there's a standard called USBC-PD (PD is for "Power Delivery") that your devices need to conform to in order to maximize power input. To maximize how fast this power bank recharges from an AC wall socket, make sure you use a wall charger that can output power comparable to what this power bank can handle, like this one:
https://www.amazon.com/gp/product/B09Q61T39G/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
.. which is also a great replacement for the "power brick" that came with your MacBook. This product can recharge your laptop just as fast as the stock "power brick" while also charging or powering other things.
2) switch all your cables to USBC-to-USBC , and use tiny adapters like these to snap onto your USBC cables to connect to USB micro, or Apple Lightning, or whatever.
https://www.amazon.com/gp/product/B094FZFPRC/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
This way you can go all USBC now, and you can still connect to anything - the adapters just dangle off of your USBC cables.
Carbon emissions from the lifecycle of this product were measured, reduced and offset.
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