Stacked variable voltage battery module arrangement

The present invention comprises a reconfigurable variable voltage battery. One or more variable voltage battery (VVB) modules are connected in series to form a stacked variable voltage battery (SVVB or Stacked VVB). A variable voltage battery module may comprise at least one battery cell and processor controlled switches adapted to vary the output of the variable voltage battery module. By separately configuring the switches of each VVB module, the output of the stacked VVB module can produce any voltage up to the full sum of the voltages of all the cells in the individual VVB modules. In addition, charge balancing can easily be achieved with a stacked VVB configuration, as some VVB modules can be bypassed (e.g., by setting select switches to simulate a short condition) either to prioritize the discharging of stronger VVB modules, or to prioritize the charging of weaker VVB modules.