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Internal power consumption and Charger consumption | Back-UPS & Surge Protectors

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Internal power consumption and Charger consumption

Discussion in Back-UPS & Surge Protectors started by Elizalde , 9/15/2019 9:23 AM
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Posted in: General

Internal power consumption and Charger consumption

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  • zaldyt

    Hi guys, just want your confirmation if my computation is correct on

    power consumption of APC UPS model BX650Li-MS 650 VA / 325 watts

    Efficiency = 90% 

    having Battery size type of 12v 7Ah 

    Here it goes.

    where:  Inefficiency = 100%-90% = 10%

                 Watts rating (at full load) = 325 watts

    Internal Power Consumption = Inefficiency x watt rating (at full load)

                                                  = 10% x 325 watts 

                                                  = 32.5 watts 

    Charger watt rating = 12 V x 7 Amp

                                   = 84 watts

    Total Power consumption = 32.5 + 84 = 116.5 watts

    Guys, Is this correct calculation on the power consumption of this UPS model? Kindly comment please. Thanks

     

     

     

     

     

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