After 5 hours charge, the LCD display is still showing half battery. Is something wrong with battery or charger?
The display charge indicator has a lagging system so that it’ll stabilize in cases of voltage fluctuations. Switch the bike ON Ride for 10-15 sec, and the bars will show full. At no load condition ~42V is fully charged ~32V is fully discharged. You can estimate the charge level almost linearly in between. For example, [...]