Quote Originally Posted by dr. d View Post
white terminal deposits are due to a leak around the battery terminals. these leaks may be caused by housing cracks brought about by improper terminal tightening and loosening techniques.
they can also be caused by electrolyte (acid) vapors escaping from the battery vents. they are pronounced by overcharging.
that's why i always make it a point with the battery shop guys that never pupukpukin ang terminals every time i buy a new one.
just pry open the terminal lugs kung medyo masikip.