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Battery Charge Time Calculation Formula

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Toucherche -  
 mahj -
Hello,

I would like you to help me find the formula to calculate the charging time of a battery. Thank you for your responses.
Best regards

1 answer

  1. Profile blocked
     
    Basically, you need to divide your battery capacity (in Amp-hours (Ah)) by the charging current of your charger.

    Example:
    a 100 Ah battery
    a charger or other charging system delivering 10 Ah in charging current

    100 Ah / 10 Ah = 10 hours of charging if the battery is completely discharged.

    Best regards,
    582
    1. pietruch
       
      It's not uniform! It's 100Ah / 10A... otherwise, the result is unitless...
      10
    2. aldarme
       
      No, if we base ourselves on the calculation units: 100 Ah / 10 A
      We have no unit left at the end.
      Furthermore, a charger provides you with a charging current and not Ah, which represents the capacity of the battery, meaning the amount of amperes per hour!

      Therefore, we have 100 Ah (capacity) / 10 A (charging current) = 10 hours of charging.
      As found by energiemobile
      3