Riding up a small hill on only 10 volts of solar power from Sunpower solar cells! <br />no batteries are used, just the power from the sun. <br />The highly diffuse reflectors provide the max solar output from indirect sun exposure .. <br /> <br />I just recently finished a 2 week e-bike trek through British Columbia, Canada. and I carried all 8 DIY Sunpower solar panels along for backup charging...the FEP or plastic protective top sheet on each panel has become scratched and visibly worn.. <br /> <br />My motor is a 1000watt beast with heavy magnets, which is not ideal for really low wattage testing... so Im quite content with the results so far.. <br /> <br />about the DIY panels.. <br />8 panels with 4 Sunpower cells each <br />without reflectors or mounts, each panels weighs 100 grams each <br />- I have not weighed the whole kit, but I would make a guess of 5lbs or less. <br /> <br />about the hybrid e-bike <br />it is a mid-motor mount with freewheel cranks <br /> <br />The diffuse reflectors are a material named White97™ Film - donated by WhiteOptics <br /> <br /> <br />Project: Solar-Cross <br />http://www.solar-cross.thekpv.com <br />https://www.facebook.com/SolarCross.Ebike <br />https://plus.google.com/+TerryHope
