The Next Evolution in Sizing Calculators . HAWKER® EDGETM is the next evolution in sizing calculators for Lithium, Thin Plate Pure Lead (TPPL), Fast and Opportunity charging applications! HAWKER® EDGETM is a calculation software featuring sizing and financial information that provides data driven reports to help inform your power solution decisions. Custom-developed analytics from the HAWKER®Battery Boss™ WC (BBWC) can be utilized to generate easy-to-read, interactive visualizations that display battery data to help you understand which HAWKER® power solutions may work best for your operation and may lower Total Cost of Ownership (TCO).