Your mileage may vary for the 1Mbit save type patch as games like Pokemon may work initially but could potentially have issues down the track. There are a select few clone/repo carts that have a 1Mbit SRAM chip split into 2x 512KB and both chunks can be accessed however they only have a 16MB flash chip. There is a 1Mbit SRAM bank switching patcher available by bbsan2k: _Repro_SRAM_Patcher
I don't know if this applies to this card in particular, but in all likelihood, one of the things the patch program does is to patch in custom save game functionality so that the ROMs can write to the flashcard rather than expecting their own flash memory to be present. Later cards were sophisticated enough to do this patching on-the-fly. I'd recommend if you want specifics to compare the output of the patcher to the input in a hex editor.