Talk:Transportation/@comment-2600:8807:2285:7900:14D7:9793:F761:76D1-20180803183043/@comment-2001:464D:941E:0:C15F:DE6D:A667:A03A-20191215105553

That has struck me as well, considering the small size of the solar panel, it would take many days to charge it, if not weeks. Unless of course solar panel technology has improved a lot since our time.