Xiaomi 3 PRO Power Bank, 20000mAh, USB-C 45W Power Delivery and Quick Charge 3.0

Best power bank I ever had, it is able to charge my iPad Pro 12.9” & Macbook Air 2019 with no problem, of course if you’re not using them, but if you are watching a movie for example it will keep doing a good job as in keeping the iPad at the current percentage and slowly increase it. It take quite a bit of time to charge it from null to full, about 2h with my Macbook charger.

Bought for daughter and she reports back it is excellent - pass through charging from both lightening and USB-C is a big win!

Supper happy with my purchase! Lasts really long and charges phones quickly. Recommend for sure

So I waited quite some time for this, my father in law bought this for me in Beijing and brought it over when he flew over this year. Previously I owned the 5,000 mAh slim Xiaomi battery which I bought in 2016 and is still going strong. Unlike many other batteries, this battery does not consist of just 18650 cells in some arrangement, the cell(s) are flat and rectangular which makes for better space utilisation. It actually outputs 45W on the USB-C port, a feature I can't seem to find in any other battery charger except extremely expensive ones. I can charge this battery with my MacBook Pro charger and it has a full charge in just a couple of hours, and it's ready to give that same juice back at the drop of a hat. I can even use my 15" MacBook Pro plugged into this thing as long as I don't do super intensive tasks. But, for general usage this battery is great, feels great in the hand, I'd definitely recommend this battery, even if it is expensive to get it shipped to the UK.

It’s a little slow to recharge, but that’s understandable given the huge 20000 Mah capacity. Another USB-C slot would have made this a five star job, as you can only do pass-through charging (i.e. charging up another item whilst you recharge the unit itself) to items using the two USB-A slots. There’s also a fair bit of heft (and size) to it, for a power bank, so not completely ideal for carrying around on the go. Those minor issues aside, this is great, I bought this to use with a GPD Win Max and it’s ideal, being able to kick out 45W over the USB-C port, taking the Max from a low battery warning to full recharge only knocks this thing down to 2 lights out of a full (4 light) charge. Kicks out some heat in use, but only what you could describe as ‘warm’ -: never gets hot enough that you couldn’t comfortably hold it.

DISCLAIMER:* This review is based on my experiences using it to charge my Macbook Pro 13" 2018 (after almost 1 year of using most days)* I actually purchased this (about half the price!) in China about one year ago and am 95% sure it is exactly the same product. Certainly the specs are the same and the appearance is identical, but you never know how an international version may have been tweaked.Pros:* extremely well built. very solid* nice feel* reliable* great value at 300CNY!Cons:* Doesn't quite fully charge the Macbook Pro 13" (I would estimate 80%-90%)* Seems to cut out when laptop is under reasonably heavy usage and laptop battery is low - note, I find better results by not waiting for the laptop power to run low before plugging in powerbank - i.e. try to keep laptop battery at full charge)* Indicator lights are misleading. It seems that going from 4 dots to 3 dots happens when already most of the charge has gone. So it can got from 4 dots to empty faster than expected.* It's quite heavy for its capacity* Pass-through charging is great but it really needs a second USB-C port to be useful, so that the charger and laptop can be fast-charged at the same time