I am just starting out and I have already posted a list of problems I have encountered or things I don't understand.  But I forgot to mention the controller battery.  I fully charged it and then used it for about 30-60 minutes trying to update the firmware.  In that short time, it discharged to 48%, causing my update to stop.  So I turned off the controller and about a half hour later I turned it back on and it was at 38%.   So I charged it back to 100%, a process that took two hours, much longer than it took to discharge it.  And if I am not mistaken there is no way to replace that battery, is there?  This cannot be right, can it?  I paid $1000 for this machine.  It should not have these horrible flaws.  

I am just starting out and I have already posted a list of problems I have encountered or things I don't understand.  But I forgot to mention the controller battery.  I fully charged it and then used it for about 30-60 minutes trying to update the firmware.  In that short time, it discharged to 48%, causing my update to stop.  So I turned off the controller and about a half hour later I turned it back on and it was at 38%.   So I charged it back to 100%, a process that took two hours, much longer than it took to discharge it.  And if I am not mistaken there is no way to replace that battery, is there?  This cannot be right, can it?  I paid $1000 for this machine.  It should not have these horrible flaws.