Anker PowerCore III 20.000 mAh USB-C PD

Only had it for a few days, and only did inhouse tests so far. I use this (mostly) to power portable sound recorders, like the Zoom F3 or the Sound Devices Mixpre, or smaller like Roland R07, and off course I use it to charge phones and some other small things. It works great for all of this. On all of the recorders, I get very good recording times. (69hrs on a Zoom F3 with 24V phantom and no backlight, and two AA in the recorder itself). It can't charge my 13" macbook pro, but it can power it, so at least I can keep working if that battery runs out. And good to know that the battery will fully charge on a 51w USB-A 2.4V charger in less than 10hrs. All this in a smaller form factor than other anker 10K mAh batteries I have. so pretty good,