Gene,
My suggestion is this. Turn off the inverter at the remote panel. Turn off the 120 volt circuit breaker marked inverter/charger in the bedroom. Cable tie all cables together going to each respective battery post and add labels with masking tape. Take multiple pictures with your phone. Remove the batteries and tray for reconditioning. If long term, find a way to reinstall the batteries safely on crates or some fabricated means to support them. When you reconnect the cables, you will get a large spark with the last connection. (This is normal, you are powering up a large capacitor inside the inverter/charger). Turn on the circuit breaker, the charger will automatically resume its charging sequence. Hope this helps, Fred