Trolleybusses DON'T have that problem - they can easily pass another failed trolleybuss. Having said that, there are trolleybusses with batteries already (opera

Trolleybusses DON'T have that problem - they can easily pass another failed trolleybuss. Having said that, there are trolleybusses with batteries already (operating in Gdynia, Poland for example) - they're being used to service routes which are not 100% electrified.