I had the Rippa RA902BSP, which used PS3 specific "bluetooth". The controller would not work on Windows via bluetooth, unless connected via the micro USB cable. Promptly returned it. The drivers for it is still available in this thread but I doubt it will solve your problem. Supposedly this PS3-flavoured bluetooth works with some retro gaming linux distros, and if you bend over backwards, can be forced to work with Windows by overwriting your bluetooth drivers with scptoolkit (YMMV). Not recommended.
If it used to work via bluetooth and suddenly stopped, open it up and clean the pcb with pure isopropanol. The sticky soldering flux were probably left on these cheap boards, causing problems. Had to do this with my P2 controllers or they would drop wireless dongle connections.