This would depend on the charger and if your fast charging or trickle charge,also how low the charge is in the battery
would leave it for at least 8 hours if it goes flat quickly again you most probably need a nnew battery as its not holding the charge
Sorry didn't read the post properly,if its a new battery they normally come pre-charged if its flat its possible its faulty otherwise there might be a short or something draining it on the scoot,you checked your fuses have you
This must be a jinx went out to start my scoot flat as a anything,g no life what so ever so it looks like im buying a new battery lol.
not to bad a price I got one of those little orange trade cards great for car pads and discs,wipers and plugs,unbelievable savings front pads 18.75 in store with card 7.62