I do a lot of emulators outside of the Droid and have had my own .srm save files for a while (the actual battery save files you could extract from a SNES game cartridge) but I was so irritated they wouldn't work til lately...
Snesoid will now save your game it seems on its own but saving it as a .sav file...I thought to myself, what if I renamed my .srm files to .sav? IT FREAKIN WORKED! I GOT MY SUPER METROID FULL POWER SAVE TO WORK!
So here's the fun part...
SNES SRMSavestates - Zophar's Domain
A ton of .srm save files
Here's the thing though, make sure the .sav file you rename from the .srm extension is the EXACT same name as the rom you are trying to load.
e.g. I have Super_Metroid.smc. I download a .srm file and rename it to Super_Metroid.sav and keep them in the same directory. Wala, success.
I also do believe they have to be the same region for them to work together (both the save file and the rom itself)