An approximate calculation of the operating time of the gas boiler from the battery

How to calculate the operating time of a gas boiler with an electric power of 130 W from a battery of 60 a / h 12V through a 220/12 inverter?

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Posted: Updated: 14.10.2018 1 comment
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  • Admin
    10/14/2018 at 19:46

    Hello! You need to convert the battery capacity to watt hours. For this, 60 A / h * 12 V = 720 W / h.
    Apparently this is a car battery. Please note that it is not recommended to deeply discharge it. Suppose we plant it up to 40% of the nominal capacity, then we have 432 watts of hours that can be safely used. Now we will take into account the efficiency of your inverter, even 80%. So we have left:
    432 * 0.8 = 345W / h
    Total 345W / h / 130W = 2.6 hours your boiler can work without harm to the battery. Further work, of course, will continue for the same amount and even longer, but so you risk killing the battery.

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