The Mateminco MT35 and MT18 are very similar to the Astrolux MF01 and MF02. The heads and battery tubes are all interchangeable and the battery carriers are all the same. Saves money.
When Lexel reviewed the mf01 he said protected cells won’t fit. Then Charles BridgTec did a review of a production version and said protected cells do fit. It’s possible the battery carriers were lengthed just a little so both will work.
I would ask on this thread.
Maybe some owners can check to see if they fit.