Zoe The Robot
 
. Zoe uses a HiTec R/C transmitter
5 Channels
The receiver drives analogue servos
. HiTec 4 circuit battery charger

Each of Zoe's cell packs hold six 18650 cells in series. The cell packs can be connected
to a hobby Lithium Ion battery charger. These chargers can "Balance Charge" six cells in series.