Bought a used Hawk last October, with a 50 watt solar system. When the solar panel is charging the house battery(optima AGM) I'm seeing 14.8 - 15.2 volts at the battery terminals mid day. The charge voltage seems a bit high, I thought the charge system was regulated and was expecting to see 13.8 to maybe 14.5 max. Have any of you checked the volt output for this, is this normal?. Thanks