@Pascal Monett, re: feature phone.
*Hands you an extra tall pint & taps rims in empathy glee*
Mine was last charged on Sunday of the week before; it's still got 24% charge remaining. Depending on how many calls/texts I get/make, it'll probably go until Wednesday before I have to recharge it.
Wanna join me for a game of darts while we make silly faces at the silly sods all pushing & shoving to find a free plug for their smart phone chargers? =-)p
*Ducks & runs before someone flings a smart phone at my head*