I've recently modified my Trek Dual Sport into an electric bike with a 750w Bafang motor and a 52v 17 1/2 amp battery. I'd like to know when the battery is fully charged; I don't want to leave it on the charger past fully charged. The battery has a single red indicator and 3 green lights. The charger lights up with a red light when I started the charge and it was still red when I removed it. Will the charger indicator light move off the red light when the battery is fully charged?