[RE-wrenches] High L16 voltage situation

[Mick Abraham]

Hi, Nathan~

Your pesky overcharge situation sounds like a real pain given the long
commute. 15.6 volts on a "12 volt" battery implies zero restriction of the
incoming energy, so this looks like a controller problem...or maybe it's a
wiring problem that prevents proper controller operation. Make sure there's
a -12 in the model number for your Morningstar Sunsaver controls, as those
are voltage specific.

Eliminate as many variables as possible, Nathan: unhook two of the 6v
L-16's, leaving only two in a 12 volt string. Connect only one PV module
through the 12v controller and see if the voltage will regulate properly.
If you have a clamp style DC ammeter, clip around one lead in the charge
circuit & read the amps with good sun. If the battery voltage continues
high while you see ~ 7-8 amps PV charge...the controller is failing to do
its job.

Jolliness,

Mick Abraham, Proprietor
www.abrahamsolar.com

Voice: 970-731-4675
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