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Old 10-30-14, 08:24 PM   #3
Xringer
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Join Date: Feb 2009
Location: Woburn, MA
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I'm using a 48v bank and the charge controller sees about 70 volts from the PV.
The charge controller sets the voltage level to the battery bank..


I once considered using two 240vac EnPhase GTI units with each connected 2 batteries.
Splitting the 48v into two 24v sources for the inverters.

The problem I see with using the battery bank.. Is over-discharging.
If I don't have a good control on those GTIs, they will vampire the bank flat.


But, I'm not interested in going to GTIs just yet..
Here in MA, the state wants MA approved vendors and installers doing the work, not DIYers.
Too much trouble to do it legally.. So I'm not doing it..
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