Solar Panel Expansion Kit Maximum Power Point 100 W Total System Power Output 100 W Battery Capacity Not Applicable Includes Battery No Number of Cells 36 Voltage @ Maximum Power Point 19.12 V Current @ Maximum Power Point 5.23 A Compatible with Series GS-Star Number of Solar Panels 1 Mounting Type Ground Includes (2) Extension Cables. (2) Standard PV T-Branch Connectors Grape Solar GS-Star-100W 100-Watt Polycrystalline Solar Panel Cell Type Polycrystalline