Any problem with leaving 12V battery disconnected for an extended period?

[Jeeperz Kreeperz]

Gutted the interior to put down sound deadening, and add a bunch of mods. Before starting, I instinctively disconnected the LV battery under the hood before disconnecting a bunch of interior connectors, and leaving the doors open for a couple weeks, etc.

Will I run into any problem if this build takes me 4 to 6 weeks to finish? In other words, should I be periodically reconnecting the 12v battery to check state of charge in HV battery, and plug her in for a top-up charge?

I can’t imagine I’d need to, but then again, I’ve never owned a hybrid before either!

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[Terminex]

No. The hybrid battery is Lithium Ion. They have a very low self discharge rate.

should be perfectly fine. (Wouldn't hurt to ensure it is fully charged before starting.)

 

[JeepJeepster]

Be sure to watch the youtube video on disconnecting the LV battery (you need to pull a fuse), otherwise the 12v is still powered from the HV battery.

 

[Jeeperz Kreeperz]

Be sure to watch the youtube video on disconnecting the LV battery (you need to pull a fuse), otherwise the 12v is still powered from the HV battery.

Thanks. Couldn’t find the video. I didn’t pull any fuses, but I disconnected the battery cable. Not sure how the HV could charge the LV with only one cable connected. If you find that video, please let me know.

thanks!

 

[JeepJeepster]

Here's the link
Jeep Wrangler 4xe hybrid 12 V battery disconnect - YouTube

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