On: The De-evolution of My Laptop Battery

[D9u]

Interesting, but does using a DC to AC inverter change anything?

I've noticed that cell phone batteries also failed prematurely when I had the modified sine inverter.

Do you mean that if my charger was operating with less efficiency due to modified sine wave input then my batteries were not likely to be affected?

[XorNot → D9u]

It's more likely that you were simply cycling the batteries more aggressively due to the circumstances which led to you using a DC-AC inverter.