The Watson Battery Adapter Plate for L & M Series enables you to charge any Sony NP-F550, NP-F570, NP-F730H, NP-F750, NP-F770, NP-F930, NP-F950, NP-F960, NP-F970, NP-FM30, NP-FM50, NP-FM500H, NP-FM55H, NP-FM70, NP-FM90, NP-FM91, NP-QM71, NP-QM71D, NP-QM91, or NP-QM91D type battery using your Watson Compact AC/DC or Duo LCD Charger.