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Tazer Mini user replacing OEM battery

YenBoon

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Hey everyone,

I'm in the process of replacing the OEM battery on my 2021 JLU. I've had a Tazer Mini installed very early on and have had ESS disabled from the day I got it. I've been lucky and everything's been great but last week the auto ss light came on on the dash. It was also very cold the other morning and my JLU wouldn't start up. It was warmer today and I was able to start it, while driving the battery voltage showed 14.5. I'm looking to replace the main battery with an Interstate H7 and have a question regarding the aux. Should I leave it hooked up and continue to disable the ESS thru the tazer mini? Or should I properly disconnect the aux (and pull fuse 42)?

I appreciate all responses/educational roasting. Thank you.
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CaddyshackGopher

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I have the Tazer Mini and pulled fuse 42 at approx. 57K miles. Replaced the original main battery about 2 weeks ago at 62K miles. You don't want that aux battery drawing from your main battery. I didn't need to adjust the Tazer at all. Hope this helps.
 

AskBin

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Hey everyone,

I'm in the process of replacing the OEM battery on my 2021 JLU. I've had a Tazer Mini installed very early on and have had ESS disabled from the day I got it. I've been lucky and everything's been great but last week the auto ss light came on on the dash. It was also very cold the other morning and my JLU wouldn't start up. It was warmer today and I was able to start it, while driving the battery voltage showed 14.5. I'm looking to replace the main battery with an Interstate H7 and have a question regarding the aux. Should I leave it hooked up and continue to disable the ESS thru the tazer mini? Or should I properly disconnect the aux (and pull fuse 42)?

I appreciate all responses/educational roasting. Thank you.
Tazer dosent disable ESS, it just automatically pushes the button turning it off for you.

suppose this will be my 3rd comment on this today, pull the aux battery and throw it in the trash. Loop the terminal ends for the aux battery and hook them up to the main battery.

aux battery is a tumor, ESS behaves normally in my JL, i touched nothing in the tazer, it continues to push the button for me every drive. no codes/lights, no fuses pulled. simple as
 

vetygud

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I just removed my auxiliary battery on my 2022 3.6l. I have had a Tazer JL Mini since new but pulled the F42 fuse. I taped all of the unhooked battery cables (I'm anal). It took about 30 minutes to remove the auxiliary battery by peeling the fender liner back onto the tire. I can restore it back to the OEM configuration without much effort. Everything is functioning as normal without any codes.
 
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YenBoon

YenBoon

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Ben
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I have the Tazer Mini and pulled fuse 42 at approx. 57K miles. Replaced the original main battery about 2 weeks ago at 62K miles. You don't want that aux battery drawing from your main battery. I didn't need to adjust the Tazer at all. Hope this helps.
Tazer dosent disable ESS, it just automatically pushes the button turning it off for you.

suppose this will be my 3rd comment on this today, pull the aux battery and throw it in the trash. Loop the terminal ends for the aux battery and hook them up to the main battery.

aux battery is a tumor, ESS behaves normally in my JL, i touched nothing in the tazer, it continues to push the button for me every drive. no codes/lights, no fuses pulled. simple as
I just removed my auxiliary battery on my 2022 3.6l. I have had a Tazer JL Mini since new but pulled the F42 fuse. I taped all of the unhooked battery cables (I'm anal). It took about 30 minutes to remove the auxiliary battery by peeling the fender liner back onto the tire. I can restore it back to the OEM configuration without much effort. Everything is functioning as normal without any codes.
Thank you all for the help. I took out the old battery, installed a beefier Interstate H7 AGM, removed Fuse42, disconnected the aux negative, taped it off and called it a day. I didn't feel like peeling back the fender to remove the aux. Jeep started up right away with no warning signs or anything on the dash and everything is functioning as it should.

My only question is, the OEM battery was still reading around 14.5v thru the onboard display as of this morning. After installing the new H7, it was reading around 14.2v. I'm assuming the difference is negligible and nothing to worry about?
 

AskBin

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Thank you all for the help. I took out the old battery, installed a beefier Interstate H7 AGM, removed Fuse42, disconnected the aux negative, taped it off and called it a day. I didn't feel like peeling back the fender to remove the aux. Jeep started up right away with no warning signs or anything on the dash and everything is functioning as it should.

My only question is, the OEM battery was still reading around 14.5v thru the onboard display as of this morning. After installing the new H7, it was reading around 14.2v. I'm assuming the difference is negligible and nothing to worry about?
absolutly nothing to worry about, voltage can realistically sag down to 13v before i would really start getting worried. also i have a propensity not to trust on board displays, if your worried grab a cheap multimeter and read the voltages right off the batt.
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