CAN Failure
 

We are having serious problems with our Jags, they all work until we start running the robot hard and they stop running except for the first on the bus and the last one. when the other ones stop the yellow light stays on like it is still connected but it never puts out any power. It seems to be the battery voltage because it only dies if the battery voltage drops below 10v which happens a lot because we have lot of motors running. Please help.

Re: CAN Failure
 

That definitely sounds like a battery problem, you should never let the battery charge drop below 10.5v, or it can damage the battery. Also, if that doesn't work, check each individual cable in the CAN cables with a voltmeter for shorts/breaks, and if they are fine, open the jags and check for gunk inside. Good luck!

Re: CAN Failure
 

Could it be this problem?
http://chiefdelphi.com/forums/showthread.php?t=101871