The 80 amp charger that allows backfeeding to run the house will charge the lightning in 8 hours, the included 32 amp charger that plugs into a dryer outlet wil

The 80 amp charger that allows backfeeding to run the house will charge the lightning in 8 hours, the included 32 amp charger that plugs into a dryer outlet will do it in 19 hours, still less than a day. There are no loads in your house that will pull 80 amps continuous for 8 hours which is why it can run an average house for days while only taking 8 hours to charge. Your average house has 200 amp service which is normally enough to support the additional charge load.