Question 6000XP Battery Update option with latest firmware

I recently updated to ccaa-1E1414 and now have "Battery Update" option on the monitoring site.

I like the idea of being able to update my batteries via the monitor site, but I am wondering if there is some information on how to perform the task using the monitor center?

1 - What is the process?

2 - Does it work with multiple batteries?

3 - Does it show what the current firmware is?

4 - Is there any place to view the changelog like the "Remote" update tab has?

5 - Does this do both 485 and 232 updates?

On a related note:  My batteries are 280AH indoor wall mount.  I was browsing the EG4 website to see what the newest firmware is and I no longer see the 280AH in wall mount battery listed.  

Would I look at the 280AH all-weather battery for firmware updates?

Thanks for all the help,

JB