Battery tenders

[Goin2drt]

Can we talk battery tenders. Does anyone use them? Cigarette lighter version work? If not them for the kind that attaches to the battery exactly where do I connect them based on the battery situation.

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[Rufus]

Can we talk battery tenders. Does anyone use them? Cigarette lighter version work? If not them for the kind that attaches to the battery exactly where do I connect them based on the battery situation.

Great question. I think that the main battery is obvious. Given the location of the aux perhaps one of the terminals on the bus (N2?) is easier than going to the terminals on the aux battery. And since they’re in parallel maybe there’s a single solution, although I don’t know the state when the Jeep is off. I’m sure @Jebiruph would have a accurate answer.

 

[JIMBOX]

I travel a lot and I use YUASA 1 AMP battery maintainers--for my '16 RAM/'07 MATRIX/'18 SAHARA and I have used them for the last 5 years on JEEPs/trucks/TOYOTAS--

On the '18 JL SAHARA I just hook to the +/- of the main battery and it works SPLENDID !

No problem !

JIMBO

 

[viper88]

NOCO makes really good ones. Something for every application.

https://no.co/brands/noco-genius

This one is direct mount.

https://no.co/genius2d

 

[Jebiruph]

Great question. I think that the main battery is obvious. Given the location of the aux perhaps one of the terminals on the bus (N2?) is easier than going to the terminals on the aux battery. And since they’re in parallel maybe there’s a single solution, although I don’t know the state when the Jeep is off. I’m sure @Jebiruph would have a accurate answer.

The batteries are connected when the jeep is off.

 

[Rufus]

The batteries are connected when the jeep is off.

Thank you. So then hooking up the tender connector to the main should do the trick. Same as leaving jumper cables on the main for a while to give the aux enough life for a jump start.

 

[RELBUS]

I am also a big fan of NOCO, the proprietary plug sucks, otherwise they are great. I own at least 1/2 dozen noco tenders,
without a tender,
One thing that surprises me is how the JL batt will go dead in 3-4 weeks or less. My JL is not a DD and spends a significant amount of time just sitting...but I have noticed the batt will go dead much sooner than what I would consider acceptable.

I should prob test the batt...and or attempt to diagnose further, but we are busy people and the Jeep is a garage queen.

Anyone else notice that their JL wont hold a charge if parked for awhile?

 

[BRuby]

Can we talk battery tenders. Does anyone use them? Cigarette lighter version work? If not them for the kind that attaches to the battery exactly where do I connect them based on the battery situation.

Here is an early thread that discussed how to deal with charging the “different Amp-Hr rated” batteries the JL uses. There are other threads as well.

https://www.jlwranglerforums.com/fo...olidated-information.25377/page-6#post-932556

 

[Goin2drt]

Here is an early thread that discussed how to deal with charging the “different Amp-Hr rated” batteries the JL uses. There are other threads as well.

https://www.jlwranglerforums.com/fo...olidated-information.25377/page-6#post-932556

so post #83 in that link talks about having to do both batteries. That was kind of my question. So if I get a battery tender as Jimbox states all I need to do is hook that tender up to the main pos and main neg post and I am good? Or will the ESS battery die in that case?

 

[Rufus]

so post #83 in that link talks about having to do both batteries. That was kind of my question. So if I get a battery tender as Jimbox states all I need to do is hook that tender up to the main pos and main neg post and I am good? Or will the ESS battery die in that case?

Since they are connected it should be just like the jump starting procedure, so just connecting the main should be fine.

 

[Goin2drt]

Since they are connected it should be just like the jump starting procedure, so just connecting the main should be fine.

ok thanks. Stupid question is jump starting normal on Jeep. Just pos to pos and net to net post or is there a different spot for the net. I guess I could read the manual.

 

[Goin2drt]

*neg

 

[Rufus]

ok thanks. Stupid question is jump starting normal on Jeep. Just pos to pos and net to net post or is there a different spot for the net. I guess I could read the manual.

Hi, here is a good sticky thread on this topic that you should read:
https://www.jlwranglerforums.com/forum/threads/why-3-6l-jumpstarts-are-the-way-that-they-are.27758/

Also FWIW I was taught to never use the negative post for the vehicle that you’re jumping, but rather to use a ground point somewhere else (due to the potential for a spark igniting any gasses that have built up over the discharged battery).

 

[viper88]

I am also a big fan of NOCO, the proprietary plug sucks, otherwise they are great. I own at least 1/2 dozen noco tenders,
without a tender,
One thing that surprises me is how the JL batt will go dead in 3-4 weeks or less. My JL is not a DD and spends a significant amount of time just sitting...but I have noticed the batt will go dead much sooner than what I would consider acceptable.

I should prob test the batt...and or attempt to diagnose further, but we are busy people and the Jeep is a garage queen.

Anyone else notice that their JL wont hold a charge if parked for awhile?

You own a 2.0 or 3.6? Have the tow package?

 

[RELBUS]

You own a 2.0 or 3.6? Have the tow package?

2.0 w/ tow package

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