Ideal for assessing the performance of you solar panels & batteries Voltage open circuit test Voc to test that the solar module is producing the correct voltage Short circuit current test Isc to test that the solar module is producing the correct current Current flow from solar module into battery to test that the battery is being charged Battery condition test to test the health of the battery Supplied with detailed user manual A high quality tool to enable users to assess the performance of a solar installation & battery.