# about specific capacitance of battery

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### Swapnil Rajoba

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Sep 4, 2015, 10:30:43 AM9/4/15
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How calculate specific capacitance (mAh/g)of battery by taking values of voltage and current from potentiostat at galvanostatic mode.

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Mr. Swapnil J. Rajoba
Research Student
C/O Dr. L.D. Jadhav
Department of Physics
Rajaram College, Kolhapur.
Kolhapur-416004 M.S. India.
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### Senthilkumar B

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Sep 5, 2015, 6:36:23 AM9/5/15
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the specific capacity (mAh/g) = current (mA) * time (h) / weight of active material (g)

usually potentiostat will give mAh values as capacity (mA h or Ah) then you can convert it to specific capacity (mA h/g) according to your electrode material weight.

note:

In case of capacitor use specific capacitance (F/g) = current (mA) * time (s) / voltage (V) * weight of active material (g)

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