watts converted to amps

Alsss · Oct 2, 2002

Does anybody know of a formula for converting watts into amps? The service manual for my '68 says I need a replacement battery with at least 3150 watts cranking ability at 0 degrees. In todays terminology how many CCA'S (cold cranking amps) is that?
-Al

d1_bradley · Oct 2, 2002

Its the old Ohms Law thing. P (watts) = I (current) divided by E (voltage) P=I/E or 262.5 Amps In other words almost ANY 12V battery will meet the minimum. Here's a site with a calculator. http://www.angelfire.com/pa/baconbacon/page2.html

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Dave Bradley
www.corvetteforum.net/classics/d1_bradley
'69 SS396 ragtop
'33 3W Coupe
'65 Vette BB Roadster

Alsss · Oct 2, 2002

Thanks for the response!!, and you're right, almost ANY 12 volt battery will work! - Al

John_Muha · Oct 2, 2002

Me backwards again but isn't it I x E = P?

Peter F. · Oct 3, 2002

Yes John, Power = Current x Voltage

watts converted to amps

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