Photovoltaic (PV) panels can be joined up in series to increase the voltage of the output or in parallel to provide more current at the set voltage - just like ordinary batteries.
Once the PV array meets the needs of the Battery, a control box is fitted between the solar (PV) panel and the Battery. Typically a 9 Amp regulator for 4 x 60 watt panels costs 75 pounds. For detailed pricing for a specific battery/pv panel set up, call Practically Green on 01648 32615
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