JVC VUA-70 Starter Kit with BNVF-707 Data Battery, Carrying Case & Tape, for GRD-250, 270, 295 and GRDF-430, 450, 550 Camcorders.

With the BNV-707 Data Battery the remaining battery and recording time can be easily viewed, by simply touching one button, even with the power turned off. This allows you to check what remains for both the battery and recording time before shooting, so you can prevent the battery from running out during shooting.