2014 BMW i3

[anthonyerussonyc]

How long does a level 2 charger take to charge my car?

 

[alohart]

If you have a 40 A or greater circuit breaker on your 240 V charging circuit, your EVSE can vend 32 A, the usable capacity of your battery pack is what it was when new, 18.8 kWh (unlikely), and charging efficiency is 90%: (18.8 kWh * 1000 w/kW) / (240 V * 30 A * 0.9) = 2.9 hours. However, the charging rate decreases above a 90% charge level which would increase the total charging time somewhat while a lower usable capacity would decrease the total charging time.

 

[robthebold]

How long does a level 2 charger take to charge my car?

It'd be like asking the old-time gas station attendant how much gas you'll need . . . it all depends on how far you went -- or want to go . . .

For a more useful rule-of-thumb approximation, I think it'd be a conservative guesstimate that you could add 30-ish miles of range per charging hour. YMMV -- literally!