KrisKasprzak
Well-known member
All,
I've been making my own PCB boards with great success and my next project is a batter tester. I'm looking at testing 12 vdc lead acid batteries (like a motor cycle battery) where my tester will draw around 18 amps for 90 minutes. I have prototype working well, but time to tidy things up.
I figured traces to carry 18 amps would be large and according an on-line trace calculator, it says my traces must be 112 mm wide (for the 1.4 mil copper thickness boards i'm getting off Amazon). Dang...
Does this sound right?
Thanks in advance.
I've been making my own PCB boards with great success and my next project is a batter tester. I'm looking at testing 12 vdc lead acid batteries (like a motor cycle battery) where my tester will draw around 18 amps for 90 minutes. I have prototype working well, but time to tidy things up.
I figured traces to carry 18 amps would be large and according an on-line trace calculator, it says my traces must be 112 mm wide (for the 1.4 mil copper thickness boards i'm getting off Amazon). Dang...
Does this sound right?
Thanks in advance.