The Sony BP-U35 is a lithium-ion battery with a capacity of 35Wh that is designed for professional video shooting in both the field and studio. This battery communicates battery status data to the compatible camcorder viewfinders. It features both a larger capacity and a faster charging time than the previous-generation BP-U30.
The remaining capacity of the battery is displayed on the LCD monitor and viewfinder when the camcorder is powered on.
The battery incorporates a four-LED remaining power gauge.