As backup power supply of the DC system, the residual capacity of battery effected safe operation of DC system directly when ac power failure occurs.

蓄电池作为直流系统交流停电时的后备电源，其剩余容量直接影响了直流系统的安全运行。

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Intelligent battery discharger is the instrument that can maintain and capacity test to battery, DC power and UPS backup battery.

智能蓄电池放电仪是专门对蓄电池组、直流电源、UPS后备电池进行维护及容量检测的仪器。

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The abnormal failure of battery which works as the backup power supply for DC system when ac power failure occurs, will affect the safe operations of DC system seriously.

蓄电池作为直流系统交流停电时的后备电源，其非正常失效严重影响了直流系统的安全运行。

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The reserve power category includes backup batteries and related products that provide a continuous supply of direct current (DC) during power outages.

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