In the slvu924d app note using the BQ7692 there is a net tie connecting -Batt and GND. My system already uses a GND, I'm just checking to make sure these nets are for sure tied together. Can I just label all the "GND" nets in the appnote as BATT- on my schematic and connect my gnd to J6 (source of the main power fet)? Or is the net tie connect somewhere with a small tie for a reason?