[RE-wrenches] Sunnyboy TL with Batteries

[Ray Walters]

Hi All;

It just occurred to me that the new secure power supply model Sunny Boy 
TL inverters might be able to charge a battery based inverter through 
its regular AC input, and avoid some of the control issues inherent to 
regular AC coupled systems.  This would allow the secure power output to 
be wired to the regular AC input of the battery inverter, and then gain 
the advantages of full battery charge control.  This would require using 
a battery based inverter with 2 AC inputs, with regular grid to the grid 
input, and the secure power supply output from the Sunnyboy wired to the 
generator (or 2nd) AC input.  (or some relay arrangement for single AC 
in inverters)

Anyone try this, or have good reasons this is a bad idea?  I'm literally 
thinking out loud, so don't hold it against me if this actually is dumb.

Thanks,

-- 
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760