Posted to the Waveform Library on 11/5/2015

Driver's complaint, detected odor of rotten eggs. This is the base image of the batteries (truck charging at 14.1 VDC), rear battery (right side of the photo) failed. Two batteries on right about 70F, rear battery almost 200F (odor from degradation of battery electrolyte-sulfuric acid).

Mark Sarlo
Owner/Engineer
Tri-State Diagnostics
La Junta, Colorado, USA