Old style charger: 6 to 8 hours, use timer switch to prevent overcharging
New “smart” charger: up to 12 hours, until green light comes on, then disconnect.
N.B. Do not leave charger on longer than instructed, battery damage may occur.
N.B.
Refer to website for detailed charging instructions:
http://www.electricvehiclesoceania.com.au/products/fourstar/fourstar-owner-information/