Bionic stuff storage

Build any item storage,

Set a max kg (here 8)

Have a pile of at least 8 power banks

Let the dupes fill it,

if you have multiple dupes on the actions, they will grab as much as they can to fill the storage up to 8 units but if they can't fill it in one errand they won't be able to add more because the storage is considered full with 1 power banks (20kg).

so they might fill it up the first time you set the storage (and it's going to be hard to tell if you try to store like 500 because when selecting the storage it will be filled with lines and lines of "Power bank x 1: 20kg at XX.X°C" instead of one line saying "Power bank x XX: XXkg at XX.X°C"

the storage won't be refilled until empty because 1 power bank is 20kg and so it's more than the setting applied to the storage.

if you try to do it by  weight and set it to 200kg for 10 power banks, your dupes will try to fit 200 power banks in the storage and it won't be refilled until there is less than 10 power banks inside it. Really annoying for space travel.