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Formulary Capacity

Inscriptions on a battery


The amount of current, which is taken in by a battery in a given time or given out during discharging is called the capacity. In the United States the term 'reserve capacity' is used. Here, during the discharge, a current of 25 A is stipulated to determine the capacity.

K = I · t

       K
I =
       t

       K
t =
       I

Check your calculation!     You need help?
t Time h min s
t Time h (hours)

Check your calculation!     You need help?
Please enter numbers only in two of the three fields!
I Discharging current A (Ampere)
t Discharging period h (hours)
K Capacity Ah

Places behind the comma: 2 3 4 5

Example

Var. set:

I = 3,4 A; t = 5 h 15 min = 5,25 h

Var. asked for:

K in Ah

Answer:

K = I · t = 3,4 A · 5,25 h = 17,85 Ah


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