\begin{circuitikz}[scale=0.6,transform shape]
%\draw[gray,very thin] (0,0) grid (10,10);
\draw (0,0)to[battery1](0,4);
\draw (0,4) -- (4,4);
\draw (4,4)to[lamp=$L_1$](4,2);
\draw (4,2)to[lamp=$L_2$](4,0);
\draw (0,0) -- (4,0);
\draw (4,2) -- (6,2);
\draw (6,2)to[lamp=$L_3$](6,0);
\draw (4,0) -- (6,0);
\end{circuitikz}