when i bought my bike used it had 87% batt capacity i then rode it a few times until it reached 67% then connected the charger.
i had the charger on for 20 mins then turned it off and turned bike on and it had the same reading 67%, i did it again for 20 mins and once again 67%, i continued with charging for another 40 mins and now it has 100%, i was expecting to see a percentage increment change during the on and off charging process but i didn't see that.
i think next time when charging i'll just check the display screen batt volts when to turn it off.