On/Off switches for servo batteries needed?

I have about 5 LiPo batteries, lots of servos and the Arduino. Do I need to add On/Off switches to the batteries for when my robot is turned off?

Is turning off just the controller not enough? Also would you add a switch for each battery or one for all?

Thanks in advance

Assuming the batteries are directly connected to the servos (as they should be) then you will need switches - otherwise the servos will be permanently powered and will discharge the LiPos below the safe level.

...R

Yup they are, that answers my question, thanks a ton!

One switch for all the servos should work fine. You can leave the ground connected and have the switch disconnect the positive supply.