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Using an industrial lithium-ion battery that has higher energy density than conventional valve-regulated lead-acid batteries, a rack-mounted DC-power-supply system was assembled and tested at a base transceiver station (BTS) during actual service. The nominal output voltage of the system is 53.5 V and the maximum output current is 20 A. An 80-Ah lithium-ion battery composed of 13 cells connected in...
A DC-power-supply system with a maximum output current of 30 A was developed using stationary 80-Ah lithium-ion batteries and performance tests were carried out in laboratories and a base transceiver station offering actual services. The system was designed for an outdoor setting. The lithium-ion batteries had recharge characteristics evaluated by a method of constant-current and constant-voltage...
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