“Sony DCR-SX30E compatiblity with NP-FV batteries The original battery for DCR-SX30E Handycam is NP-FH30, with 7.2V and 500mAh. I saw many different original and replacement batteries with voltage different form 7.2V. Is it possible (and appropriate) to use batteries with 6.8 or 7.4V? Are NP-FVxx bateries (NP-FV50, NP-FV70 and NP-FV100) compatible with this Handycam, or only NP-FHxx batteries (NP-FH30, 50, 70 and 100)?”