Keywords: opportunity charging opportunitycharging slidein trolleybus battery bus batterybus electric rome outdoor Rome, Italy - a trolleybus which also travels in wire-free battery-electric mode. Opportunity charging is carried out whilst in motion. This is known as 'SlideIn'. Note that after 10 years their batteries became life expired and replacing them cost 30,000 Euro per bus. Rome, Italy - a trolleybus which also travels in wire-free battery-electric mode. Opportunity charging is carried out whilst in motion. This is known as 'SlideIn'. Note that after 10 years their batteries became life expired and replacing them cost 30,000 Euro per bus. |