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A load-leveling (LL) system is needed for the effective use of electric power to preserve the environment in Japan. Although the valve regulated lead-acid (VRLA) battery is considered to be one of the suitable candidates, high requirements of long cycle life such as 2000 cycles or a calendar life of 7years needed to be solved. We are currently developing a new VRLA battery for this application, and...
Valve regulated lead-acid (VRLA) batteries named SEH65 series for hybrid vehicles have long been used in hybrid inverter-controlled motor and retarder system (HIMR) buses developed by Hino Motors Ltd. In order to elucidate the points for improving the battery performance, the battery performance, which were obtained during field use and by bench test, was analyzed in details. As the result, a new...
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