Someone once claimed that it was possible to supply 170V DC directly to a computer power supply (switch-mode) and it would work as normal.  I can only see this succeeding if the power supply has no transformer (I don't know if this is common for SMPS computer power supplies).  Otherwise if it's isolated the DC won't do anything and the power supply won't work. 

But if it does work then you have nothing to worry about.  Fully-rectified AC is about 170VDC with ripple.  It won't hurt to remove the ripple and the power supply will work as normal.  I'm fairly sure that 144VDC would be sufficient as well, but the power supply might have to work a bit harder.  

You should have no problem with this as long as the supply has no transformer  But put some fuses in - I'll bet your battery pack can supply some insane current.

Would this work? Using a computer SMPS as a DC-DC converter
When I make a table of contents with the article and report classes the results are different. I have two questions.


Why does this happen?
How can I make the report ToC look like the article one?


Here are a pair of examples:  

\documentclass[]{report}
\usepackage{lipsum}
\begin{document}
\tableofcontents
\section{Section}
\lipsum
\end{document}




\documentclass[]{article}
\usepackage{lipsum}
\begin{document}
\tableofcontents
\section{Section}
\lipsum
\end{document}

