I'm using bato.to to get a lot of the series I'm reading or I've read on my new external harddrive. The most convenient way for that is the tool "Free Manga Downloader. https://github.com/riderkick/FMD
To use that tool on bato.to you need to enter your login data into the program. It worked flawlessly and I was able to download a lot.
The first error happened when I downloaded "Dawn of the forzen wastelands" http://vatoto.com/comic/_/comics/dawn-of-the-frozen-wastelands-r18907
The programm failed to download the chapters I uploaded and it also unapproved them. Luckily they were approved again.