Recommended · for some experience
Does putting solder on high current PCB tracks help?
Why people recommend it
Measures how much adding solder to high-current PCB tracks lowers resistance, finding about 30 per cent; cited alongside Dave Jones's similar test in track-width discussions.
Watch for: results vary with board and process
In their words
Does putting solder on high current PCB tracks help? (4 minutes youtube video)
Daniel on electronics.stackexchange.com, Jul 2014. CC BY-SA.
Mike of mikeselectricstuff found a 30% reduction.
Spehro 'speff' Pefhany on electronics.stackexchange.com, Apr 2021. CC BY-SA.
Does putting solder on high current PCB tracks help?
bigjosh on electronics.stackexchange.com, Oct 2015. CC BY-SA.