You're free to disagree and do whatever you want with your Jeep but that doesn't change the fact that the auxiliary battery DOES IN FACT EXIST to "protect" the Jeeps computer on start up. Does that mean without it your Jeep will instantly blow up? Obviously not and no less than running your engine without an air filter will cause your engine to instantly seize up. The battery is designed to "protect" the computer and the filter exists to "protect" your engine.Not sure I agree with this one 100%, while I'm certain the engineers are looking at a certain amount of capacity in rated amp/hrs, IDK? ... I deleted my AUX 2 yrs ago wiring exactly per Genesis with their dual system install.... since I do not have a large accessory draw I simply opted for an upgraded Odyssey. The system has worked as designed without issue and the single Odyssey has held up to everyday use and winching. My reasoning had nothing to do with the ESS system, but rather not wanting to be stranded off grid with a rig that would not start with a battery pack ... but to note that I did do the delete after my AUX died and took out the main starter battery (also just occurred on my wifes JL) Genesis has since released an OEM tray that relocates the AUX up above the PCM making the AUX very easy to reach for replacement and/or testing. Not assuming the AUX was the cause of this issue, but it seems well documented that the current AUX/Starter battery can have somewhat of a parasitic relationship. I'm also not stating that I'm smarter than the engineers, just that hordes of people have performed an AUX delete and I have not heard of a single case where an ECM has been damaged ....
But hey, it's your Jeep and you should always do whatever it is you want with it
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