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Old 12-02-2013, 07:47 AM
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Lnewqban
 
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Originally Posted by MILDBILL-RCU View Post
...............On the Robart control box, it has a port which allows an aux. batt. to be used. When I remove the little "jumper" that is in the port & plug in my aux. batt, nothing works at all. The thing is giving me a headache. I have sent an e-mail to Robart, but no response yet. Anyone here ever had this problem?
It may be a problem of polarity with the auxiliary battery.

Copied from the manual:
"Take care to maintain proper polarity when plugging in all leads."