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> I'm not actually sure whether that work without a battery sink for your unused current. What happens to unused current now when the panels are disconnected d

• jumpingmice 7y ago
  There isn't any. That's not how electric current works. If you leave a disconnected solar panel out in the sunlight it doesn't explode or whatever.
• bzbarsky 7y ago
  Nothing, since they are disconnected, so there's a voltage across the gap but not enough to spark. And you don't care precisely what the voltage is, because there's nothing happening with it. But if you don't disconnect them, now you are maintaining a voltage across whatever your load is, but that voltage depends, for solar panels, on the current being pulled from them, as I understand. And you need to maintain the voltage in some nominal range. Maybe it all works out, but I'd have to do a lot of digging to be sure...