Friday 20 April saw the first use of a modern battery-operated tram in passenger service in the UK; Midland Metro Urbos 3 18 now uses onboard power for part of each journey despite the current 21km (13-mile) Birmingham - Wolverhampton line being equipped with overhead lines. The CAF-built tram has been retrofitted with two roof-mounted lithium-ion cells, recharged from the wires.
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机译：4月20日，星期五，英国首次在乘客服务中使用现代电池驱动的电车。尽管当前的21公里（13英里）伯明翰-沃尔夫汉普顿线配备了架空线，但Midland Metro Urbos 3 18现在仍在部分行程中使用车载电源。由CAF建造的电车已经进行了改装，安装了两个屋顶安装的锂离子电池，可以通过电线充电。
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