brenton
Posts: 4
Joined: Sun Sep 17, 2017 3:08 pm
Delivery Date: 17 Aug 2015
Leaf Number: 404682

Re: LEAF's 12V battery behaviors - and why they go bad

Sun Sep 17, 2017 4:47 pm

Jedlacks wrote:BatteryMINDer 1500 along with the ring terminal assembly.


Would plugging my 12v into a BatteryMINDer overnight once a week be sufficient? Or would I need to do it overnight more often than that? I wouldn't ever really be able to do more a longer contiguous stretch than overnight.

LeftieBiker
Posts: 6936
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: LEAF's 12V battery behaviors - and why they go bad

Sun Sep 17, 2017 4:56 pm

It depends on several factors. Driving patterns, output of maintainer, and even the year Leaf. Overnight once a week will probably suffice. If you see the battery still isn't full in the morning, you'll know you have a problem.
2013 "Brilliant Silver" SV with Premium Package and no QC, and 2009 Vectrix VX-1 with 18 Leaf cells.

The most offensive, tasteless phrase in use here is "Pulled the trigger." I no longer respond to posts that use it.

brenton
Posts: 4
Joined: Sun Sep 17, 2017 3:08 pm
Delivery Date: 17 Aug 2015
Leaf Number: 404682

Re: LEAF's 12V battery behaviors - and why they go bad

Sun Sep 17, 2017 5:42 pm

LeftieBiker wrote:If you see the battery still isn't full in the morning, you'll know you have a problem.


How do you see that? So far, the only way I can tell is my car doesn't work and I have to call a tow truck.

LeftieBiker
Posts: 6936
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 31 May 2013
Location: Upstate New York, US

Re: LEAF's 12V battery behaviors - and why they go bad

Sun Sep 17, 2017 8:03 pm

Most battery maintainers have at least one color changing LED. Red means bulk charging, flashing green or yellow means the lower finishing charge, and solid green means the charge is complete. I was talking about what you would see after charging for the night with a maintainer. If it hasn't finished charging the battery back to full by morning, then the drain is too large.
2013 "Brilliant Silver" SV with Premium Package and no QC, and 2009 Vectrix VX-1 with 18 Leaf cells.

The most offensive, tasteless phrase in use here is "Pulled the trigger." I no longer respond to posts that use it.

Supersleeper
Posts: 77
Joined: Mon Aug 07, 2017 10:04 am
Delivery Date: 06 Aug 2017
Location: SF Bay Area

Re: LEAF's 12V battery behaviors - and why they go bad

Wed Sep 27, 2017 12:30 pm

Don't mean to resurrect an old thread, but now that I too am dealing with this concern, I'm wondering what came of fooling the current sensor?

Will replacing the battery with standard replacement allow another 5yr? Reason I ask is, I just replaced my TCU and expect that it will have a higher load while sleeping.

taloyd
Posts: 52
Joined: Mon Oct 07, 2013 11:08 am
Delivery Date: 04 Dec 2013
Leaf Number: 422799
Location: Los Angeles, CA, USA
Contact: Website

Re: LEAF's 12V battery behaviors - and why they go bad

Wed Sep 27, 2017 12:32 pm

Does anyone one for sure when the 12V charging algorithm was changed/improved/corrected? Ie: from what years of production is 12V charging a non-issue? 2014? 2015?

(I'm not asking about the telematics battery drain issue - just the 12V charging - thanks!)

Best,
Tal
2017 Bolt LT (w/ DCQC)
Purchased 2017/07
MON DIEU - what a treat!

2013 Leaf SV
Purchased (not leased!) 2013/09
59,860 - lost first bar. :-(

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