@bobjacon, don't think so. this happens when the charger has not been charging for hours and is cool to the touch.

Will that create any issue if I let the charger connected to the batteries when I am using the EZB and servos.

I am presently developing and testing scripts for my Inmoov robot.

You dont want to leave the charger plugged in when using the battery.

Tanks Dave, What could append?

Worst case, blow up the battery. it could also fry the the electronics in the battery causing a surge to power to go to the ez-B.

Tanks for the advice!

I gess I could make a circuit to automaticly isolate the EZB when it sense a low batterie condition and let the charger do his job, and after bring back the EZB back on line.

Do you have any other sugestion?

The issue is that lipo's dont like being full. It would be safe to do this when the battery is at about 3.9v per cell and cut off when at about 4.05v per cell.

A better option would be to get a variable power supply that supplies the needed amps (min of about 20A). This would let you adjust the voltage to what you need and allow you to work on things without needing the battery plugged up. To make a full Inmoov function I would look at a 50A supply but, until you get to that point, the 20A will be fine.