Purkey develops solar-charging system for heavy-duty vehicles Updated On Fri, Apr 15th, 2016 by Saurenergy Purkeys has developed solar-charging system for heavy-duty vehicles that keeps charging when the vehicle is running. The system developed by Purkey is an additional and effective charging option for liftgate batteries The company’s Solar Bolt charging system which can be converted from a single panel of 90 watts to a four-panel system of 360 watts […] Read more