# How to determine current from mAh rating and run time

#### Lumenosity

Joined Mar 1, 2017
469
I'm trying to calculate the current draw in a circuit with the following parameters......

Run Time = 135 minutes
Battery Capacity = 1960 mAh
Battery Voltage = 8.4v

Is there a way to determine load (in mA) with this information?

Thanks

#### Papabravo

Joined Feb 24, 2006
13,922
Very approximately, yes.

You divide 1960 mAh by 1.583 hours to get 1.24 Amps. The reason this is approximate is we don't know what "running time" means in terms of the battery's discharge rate, and we don't know what voltage the battery will be at when "running time" expires. For all we know the battery could have some capacity left when "running time" expires.

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#### Dodgydave

Joined Jun 22, 2012
9,200
135mins is 2.25Hrs!!

So 1960mAh is 871mA maximum draw.

#### Papabravo

Joined Feb 24, 2006
13,922
135mins is 2.25Hrs!!

So 1960mAh is 871mA maximum draw.
Right you are I read 135 minutes as 1 hour and 35 minutes