i3 and regen braking

Read somewhere that the i3 doesn't charge the battery when you brake, only when you let go of the gas pedal and coast.



Is this true?



If so what's the logic behind this?



I own a prius so I'm used to hybrids/EV's using the energy from the brake to charge the battery. I'd be damned if this isn't how it works in the i3.