  We show that it is possible to have non-zero ergotropy in the steady-states
of an open quantum system consisting of qubits that are collectively coupled to
a thermal bath at a finite temperature. The dynamics of our model leads the
qubits into a steady-state that has coherences in the energy eigenbasis when
the number of qubits in the system is more than one. We observe that even
though the system do not have inverted populations, it is possible to extract
work from the coherences and analytically show that in the high temperature
limit, ergotropy per unit energy is equal to the $l_1$ norm of coherence for
the two qubit case. Further, we analyze the scaling of coherence and ergotropy
as a function of the number of qubits in the system for different initial
states. Our results suggest that one can design a quantum battery that is
charged by a dissipative thermal bath in the weak coupling regime.
