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<blockquote data-quote="03cobra#2" data-source="post: 17034037" data-attributes="member: 52057"><p>All finished up. I installed a 22ah battery, and battery isolator. Reason for the isolator is the resting voltage of the battery up front is roughly 12.5, and the lithium is 13.5 or so. To prevent the agm battery from leeching off the lithium the isolator disconnects the lithium from the circuit while the car is off then reconnects when the key is on.</p><p></p><p>Couple things I noticed. The car sure starts quicker now lol. Playing music at full tilt, heavy bass music, test tines ect the voltage didn't drop below 13.5-13.7, amd that's at idle. I hammered on it for about 10-15 minutes and the amp did not shut off or get hot. In fact it only got slightly ward. I set my hand on the dust caps of the subs amd they were warmer then the amp. </p><p></p><p>Now that everything is in and done, I still may take the car to a shop and have them professionally tune the system, not sure yet. </p><p></p><p>Once the weather gets a bit better I'll take the car out and do some wot pulls, because I'm interested to see how the J2fab alternator holds up. Cold idle voltage is 15-15.2. Warmed up its 14.8 or so. Hopefully under load it stay above 14 like my kmj did.</p></blockquote><p></p>
[QUOTE="03cobra#2, post: 17034037, member: 52057"] All finished up. I installed a 22ah battery, and battery isolator. Reason for the isolator is the resting voltage of the battery up front is roughly 12.5, and the lithium is 13.5 or so. To prevent the agm battery from leeching off the lithium the isolator disconnects the lithium from the circuit while the car is off then reconnects when the key is on. Couple things I noticed. The car sure starts quicker now lol. Playing music at full tilt, heavy bass music, test tines ect the voltage didn't drop below 13.5-13.7, amd that's at idle. I hammered on it for about 10-15 minutes and the amp did not shut off or get hot. In fact it only got slightly ward. I set my hand on the dust caps of the subs amd they were warmer then the amp. Now that everything is in and done, I still may take the car to a shop and have them professionally tune the system, not sure yet. Once the weather gets a bit better I'll take the car out and do some wot pulls, because I'm interested to see how the J2fab alternator holds up. Cold idle voltage is 15-15.2. Warmed up its 14.8 or so. Hopefully under load it stay above 14 like my kmj did. [/QUOTE]
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