The Panasonic VW-VH04-K Battery Pack Holder Kit is required in order to use the VW-VBG6 and VW-VBG260 lithium-ion battery packs. The kit allows you to connect your extended life battery pack to the following compatible Panasonic camcorders:
VW-VBG260 and VW-VBG6 Battery Packs Both Compatible With: HDC-SD5, HDC-SD1, SDR-H60, SDR-H40
VW-VBG6 Battery Pack Compatible With: HDC-HS300, HDC-TM300, HDC-HS250, HDC-SD100, HDC-HS100, HDC-HS20, HDC-TM20, HDC-SD20, HDC-HS9, HDC-SX5, SDR-H90, SDR-H80, PV-GS90, VDR-D50