Re: Why not integrate Jaguars with Diodes?
 

I should have written my last paragraph above differently.

If you place the relay and the circuitry for reverse voltage protection on a removable module (per my last paragraph above). Then remove that module after confirming you've gotten the polarity correct. The mechanical characteristics of the relay would not be an issue for the robot in motion because the relay would not be present in the circuit at that time. All that would be there is the 'jumper' you put in it's place.

In the end Al is absolutely correct that with the current circumstances it is absolutely essential to confirm the polarity yourselves because there are likely no second chances.