Boxing Bot Robot, no work when connect

I have trouble with Boxing Bot robit. When i connect, it fall to ground and no work. When not connected it s stay up, it s ready. I not speak great in english. In french, le robot non connecté demeure debout, il est ok, quand il est connecté, il tombe par terre et rien fonctionne. J ai maintenu le bouton power 4 second pour l alumer sa fait rien. Ca ne fonctionne pas plus.

I try with cell at 50% of batteri it run. With both tablet ar 15% of batteri no work

Is this robot a Vex robot? This forum is for the discussion of the Vex Robotics Competition, the Vex U Robotics Competition, the Vex AI Competition, and the Vex IQ Challenge. You might find better help on a website closer related to that boxer robot.


Unfortunately, I have no experience with HEXBUG Balancing Boxing Bots

But if you are asking about those robots then these topics could be useful: