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To improve the service quality of its electric-vehicle (EV) fleet (≈500 vehicles) and master the behaviour of the valve-regulated lead/acid (VRLA) batteries, which power the major part of it, Electricité de France (EDF) has developed an on-board battery-management system. Information on the operating battery behaviour is given to the driver. Overdischarges can then be avoided. Rapid charging of VRLA...
There is a widespread feeling that the electric vehicle must play an important role in the future, beginning with special applications in specific areas such as urban transportation and goods delivery, then spreading afterwards (in the medium- to long-term) to more complicated ones, like inter-urban use. From the point of view of the valve-regulated lead/acid battery, some problems remain to be solved...
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