AnswerID: 478061 Submitted: Saturday, Feb 18, 2012 at 12:58
In principle there is no problem at all.
the main concern is the voltage of the pannel.
most pannels on housing or remote area power are 24 volt.
As above bright
sun multimeter will show you if the no load voltage is above 24 Volts...guess what...a 12 volt pannel may ahve a no load much higher tha 12 volts 18 volts perhaps but it should not get above 24.
If it is a 24 volt pannel you will need a switchmode or a MPPT regulator that will take the 24+ Volts and output a nice regulated 12 ish Volts.
As far as there not being a regulator available to do the job...rubbish
A mate of mine built a solar
powered christmass tree for a client last season with 4 x 180 watt 24 volt pannels charging a large 12 volt battery bank thru a MPPT regulator..he used the 24 volt pannels because they were so much cheaper.
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