you can put solar panels to charge the LiPO 7.4 V Battery instead of LiPO Battery Balancer Charger.
Other robots from Synthiam community

Ezang's MEASURING DISTANCE TO OBSTACLE USING THE HC-SR04
USING THE HC-SR04 ULTRASONIC SENSOR FOR ECHOLOCATION in a float in inches using ARC serial monitor another video I will...

Nomad's Using Robosapien V2
hi all i finally got the v2 up and running.my idea was to use this one whit the ez-b4 iff possible.i also want to have...

Justinratliff's Redbender
Robot Name: RedBender Purpose: To be used as a small test platform for testing ideas and developing my software ideas...