How long will the 12 V battery last when connecting a laptop, speaker and amplifier?
Hello? The question is, if you take a battery (lead or any other, 12 V) with a capacity of 12ah. I’m connected to a 220V inverter and will connect a laptop (its power supply) with an input of 100-240 ~ 1.6 A. And a column that I don’t have much data about, the input varies from 100 to 240 V and an acoustic amplifier of 73 W. The question is, how long does the 12ah battery last?
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Hello! Ideally, half an hour. But in reality, taking into account the deterioration of the battery and the efficiency of the converter, time will be reduced.