Question Need wording for a label on each EG4 battery, for battery shutdown state.

My system is not commissioned yet, but I need wording for a label to be placed on the front of each EG4 battery for first responders.  They need to know what to look for to determine if the batteries are indeed shut down.   Naturally, they will know nothing about EG4, nor do I expect them to.  What do they look for, in a matter of seconds, to verify that the batteries are indeed off?  They will likely have initiated a RSD via an outside remote RSD switch.  I need to create and apply the labels this next Monday, December 22nd.