>>938741They shouldn't be loud, definitely not more than a diesel bus. Maybe they are loud because they are hastily produced and all the stuff inside just clank.
But the main disadvantage is obvious. Batteries.
1) they expensive
2) they have to be changed once in a while
3) they heavy and large
4) they can't charge the bus for long enough, not for a regular all-day service without recharging
5) the recharging isn't fast enough yet
That's why the producers try to come up with all different versions of convenient and easy recharge method. It seems, that many of them somehow came to the conclusion, that the battery buses must be recharged at as many possible occasions as possible. Therefore > build a charging station at possibly every stop > the charging station is basically a pair of overhead wires because easily accesible for an automatic system. Now connect the wires in between stops and what did you get? A good old trolleybus, lol.
