Archiving without compression

[newb]

Hi,
I'm creating a time-lapse script where I take many pictures with esp32-cam throughout the day and I intend to upload them to a local ftp server in the evening. I recall that uploading many files is slower than uploading one single big file (provided the total size is the same). It seems there're micropython modules only for decompression, but not for compression. Is there any way I can join many files, even without compressing them, for the sole purpose of uploading them at once. The project will be battery dependent, so I need to optimise speed of upload (using wifi).

[jimmo]

I recall that uploading many files is slower than uploading one single big file (provided the total size is the same).

That shouldn't be the case, unless your files are tiny and the connection time and HTTP headers become signification, but for camera images this is very unlikely to be the case.