Here's 75watts of charging my 65v ebike. 1.14amps 5s3p configuration.
Solar mile potential = 20 miles/day
Panels are made up of 5w 0.3amp 17v panels from ebay. The larger module is 10 panels and half the weight of the smaller one which uses heavy glass and aluminum panels. This was about $200 total investment. No charge controller, inverter or any protection, just a straight connection to my controller/battery leads. But I am checking my battery voltage every 20 minutes and not letting it get above 80-90% charged. My battery consists of a 50v 9ah a123 pack and 3s 15ah lipo, for about 62v nominal.
Solar mile potential = 20 miles/day
Panels are made up of 5w 0.3amp 17v panels from ebay. The larger module is 10 panels and half the weight of the smaller one which uses heavy glass and aluminum panels. This was about $200 total investment. No charge controller, inverter or any protection, just a straight connection to my controller/battery leads. But I am checking my battery voltage every 20 minutes and not letting it get above 80-90% charged. My battery consists of a 50v 9ah a123 pack and 3s 15ah lipo, for about 62v nominal.