I run my B Rapide on 6v but do not have the generator connected (for various reasons). I have been frustrated by the lack of decent batteries recently and have come across the SHORAI brand. These are 6V 18 A/h units that fit inside an old rubber Exide/Lucas box. Because they are a sealed Li Ion type they can be mounted in any position which is handy. Does anyone have any experience with these batteries? Good? Bad? I figure I can run the bike for a week easily using LED tail lights and a low wattage QI bulb. I do not ride the bike at night due to wombats and kangaroos. Yes, I know Phelps does but I have had one too many close calls with the buggers.