I cannot even read your name ))The MEIDA and the ANDROID OS process eats the battery. The RESCAN MEDIA doesn't work. I've tried the Safestrap and BMM, same problem.
It is not SS or BMM problem.
Media process scans all your folders to find all mp3, jpg and etc...
The big problem is huge hierarhy (many folders inside other folders).
After new install the data of process is blank, so process starts searching.
You need to wait some time for scanning. After it will not spend so much time.
Do you have a lot of mp3 on ext SD-card?