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  • Electricity cost calculation

    I have a 750 ampere hour battery, it takes 8 hours to charge using a 3 phase, 120A charger.

    How do I work out how many kw/h it takes to charge the battery and therefore the cost of doing so.

    Thanks

  • #2
    Re: Electricity cost calculation

    Originally posted by Unregistered View Post
    I have a 750 ampere hour battery, it takes 8 hours to charge using a 3 phase, 120A charger.

    How do I work out how many kw/h it takes to charge the battery and therefore the cost of doing so.

    Thanks
    On the output side, what is the battery voltage? Is there a meter indicating charge current? How much of the 8 hr is it actually at the max. 120 A? What does it trickle down to?

    On the input side, what is the line voltage and rated line current for the charger? Since it is three phase, is the line voltage specified line to line or line to neutral?

    As you can tell from the questions, we don't have quite enough info to calculate.

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