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Discussion Starter #1
hi i have had my isolater going on 9 months and i have always wondered the terminal labled E was. It has terminal 1 for batt 1, terminal 2 for batt 2, terminal A for the alternator, and then there is this terminal E that i don't know what it is for. the guy at autozone said it was for a ground. and some say it is for a voltage sense wire. also isn't the isolator only charge supposed to charge one batt at a time because when its running its putting 14.2 volts to the batt up front and 13.4 to the batt in the rear. is this right. Thanks
 

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A battery isolator simply isolates the batteries in your system. This is most critical when the car is off so when you're running your system you're not draining the main car battery. While the car is running and thus the alt is charging, the batteries should be connected in parallel allowing both to charge. There will be no voltage differential between the front and rear.

As for the connections, what brand/model of isolator do you have???
 

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Discussion Starter #3
it is one i picked up at autozone.
it is made by sure power industries inc. and it is model number is 9523A. thanks
 
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