john j Posted July 22, 2014 Share Posted July 22, 2014 I need to disconnect the battery on my cmax. But i dont have a radio code. Is it possible to save the radio and engine management settings by connecting the leads to a battery charger before disconnecting them from the battery ? Quote Link to comment Share on other sites More sharing options...
jeebowhite Posted July 22, 2014 Share Posted July 22, 2014 depends why you need to disconnect the battery, you can use a battery saver which will allow a tiny trickle to keep these alive, but it really depends on the overall purpose. Quote Link to comment Share on other sites More sharing options...
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