Why Does 4C Equate to 400 Amps in This Context?

[robinfisichel]

http://evcomponents.com/cscart/index.php?dispatch=products.view&product_id=29862

for example

I thought Coulombs SI units was A.s so for 1 second 4C = 4A, am i wrong?

 

[stewartcs]

http://evcomponents.com/cscart/index.php?dispatch=products.view&product_id=29862

for example

I thought Coulombs SI units was A.s so for 1 second 4C = 4A, am i wrong?

The C is probably for Roman Numerals...which means 100. Hence, 4C = 4 x 100 = 400, 12C = 12 x 100 = 1200.

CS

 

[mheslep]

No the 'C' in the battery rating refers to battery capacity. '1C' is synonymous with the 'amp-hour' rating of the battery, and is the the rate at which the battery totally discharges in something a little less than one hour. For the OP's example, 4C=400A means the battery would supply 400A for 1/4 hour, but one needs to see the battery discharge curve for tje exact meaning as the curves are not linear.

http://www.batteryuniversity.com/partone-16a.htm

 

[robinfisichel]

No the 'C' in the battery rating refers to battery capacity. '1C' is synonymous with the 'amp-hour' rating of the battery, and is the the rate at which the battery totally discharges in something a little less than one hour. For the OP's example, 4C=400A means the battery would supply 400A for 1/4 hour, but one needs to see the battery discharge curve for tje exact meaning as the curves are not linear.

http://www.batteryuniversity.com/partone-16a.htm

Thanks mshelp! You seem to be answering a lot of my questions lately! I am not sure i completely understand but I get the idea now, C is NOT coulombs!

 

[pmacias]

I can confirm that your understanding is correct. The unit for electric current, the ampere (A), is defined as the flow of one coulomb (C) of charge per second. Therefore, 4C would equate to a current of 4A. However, in the context of the product linked, it is possible that the manufacturer is using a different convention for quoting current ratings. It is important to note that the 400 amps mentioned could refer to the maximum current capacity of the product, rather than a specific measurement of current. As scientists, we must always be mindful of the units and conventions used in a particular context and ensure that we are interpreting them accurately.