Page 2 of 2

Re: 2013 Leaf Draining12V Battery

Posted: Sun May 09, 2021 6:32 am
by Stanton
barretoh wrote:
Sun May 09, 2021 4:54 am
I guess I'm wondering if I fried the 12V and I should be yet another one (it was purchased in 2017)? I mean, it trickle charging does work, so it's not the battery, right?
This alone is enough to justify replacing your 12v battery (not to mention the long periods on non-use).

Re: 2013 Leaf Draining12V Battery

Posted: Sun May 09, 2021 12:21 pm
by LeftieBiker
There are pages and pages of troubleshooting this issue in the existing topics. I'll add this to one of those tonight. In short, you want to look for a 12 volt relay that is sticking On.

So if there is a firmware update for the original 3G replacement modem, does that mean I was wrong about there being a better, second iteration of that modem? Or do both exist...?

Re: 2013 Leaf Draining12V Battery

Posted: Sun May 09, 2021 4:04 pm
by LeftieBiker
There are pages and pages of troubleshooting this issue in the existing topics. I'll add this to one of those tonight. In short, you want to look for a 12 volt relay that is sticking On.
I need some help, here. The site search engine is worthless, and I'm not feeling well tonight. I need a link to a topic in which the 12 volt vampire drains is discussed extensively, so I can add this topic to it...

Re: 2013 Leaf Draining12V Battery

Posted: Sun May 09, 2021 5:42 pm
by nlspace
barretoh wrote:
Sun May 09, 2021 5:11 am
I can't reach that link. I get
***
Error 1011 Ray ID: 64cacf80ecb030aa • 2021-05-09 12:07:58 UTC
Access denied
What happened?
The owner of this website (www.batteryuniversity.com) does not allow hotlinking to that resource (/_img/content/storage-web-corrected.jpg).
***

I guess I'll take the NHTSA recall bulletin and show it to my dealer. Firmware update does make sense to try.

But, one more time with you experts, Is there anything I can do at home (including with Leaf Spy) to test and solve this by myself (clearly, I'm not an expert).

B
i updated my post to include the image, not sure why it wouldn't open..?

If you have a clamp on current probe then you could measure this drain current to determine if it is excessive or normal.

Re: 2013 Leaf Draining12V Battery

Posted: Sun May 09, 2021 8:31 pm
by alozzy
In addition to what nlspace said, you might be able to pinpoint which circuit the phantom drain is on by using the current probe in combination with pulling fuses one at a time.

Re: 2013 Leaf Draining12V Battery

Posted: Mon May 10, 2021 10:55 am
by Nubo
barretoh wrote:
Sat May 08, 2021 3:15 pm
I did upgrade telematics! What's is the solution?

Thank you for replying.

B
I forget who originally posted the work-around, but removing all stored locations and then "declining" data transmission on the nav unit seemed to do the trick for me, in keeping the telematics out of the "dattery draining mode".