I actually read the instructions. Stressing safety, I carefully mounted the fresh blade and tentatively approached board number ONE. The blade cut through that wood so nicely - for a second, then ground to a halt. I back off, the blade picked up speed from a stop... I approached the wood and again it stopped. And back and forth.
Freshly charged? dead battery! suspected and proven. My second cut spewed no blood and I eventually moved on to the REAL boards I need cut.
I offer the following amendment to the laws of the universe:
178 (a) - Trim pieces bought at LOWES are not only not parallel to each other when laid flat, but they are also warped.
178 (b) - ...and they are not alike, except in total length.
275 (a) - carpentry is easier for those who possess three or more hands.