Does charge cord length effect Mintyboost efficiency?

[lee321987]

Hello.
Since trace length is so important with switch mode power supplies, I'm wondering if it would be worth it to hack together some really short cords to charge my devices.

Would there be much efficiency gained from going from a 3-foot cord to a 6-inch cord?

[adafruit_support_bill]

That is a very good idea. All things being equal (wire gauge etc) a short cord will have lower resistance and therefore lower voltage drop and wasted power under load. Long skinny cords do cause charging problems with many phones.

[lee321987]

Thank you.
But what about the inductance and capacitance of long cords?
Don't these have a big effect on SMPS's?

[adafruit_support_bill]

Not really. At that point it is all DC going to the phone.