Battery2 inside mavros

Hello, i am using 2 battery sensors an hope to get the data in MAVROS. Can anyone tell me if that is possible?

I am using both battery monitors on my pixhawk as fluid flow meters and need to get the data in the ROS ecosystem. After a fair amount of research, I was not able to find a reference to a second battery status besides the one published on mavros/battery as sensor_msgs/BatteryState. But this seems to be for a single battery

Can someone please tell me that the second monitor is implemented and where to find it…(please also tell me if this is not implemented yet)