BestPal
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Re: 2013 Leaf - Dead 12-Volt Battery every 2 Weeks

Wed May 01, 2013 3:39 pm

Obviously there is a problem that needs to be fixed permanently, not just by throwing in a new battery every time - they probably didn't even need to do that, I speculate your old battery could still take and keep a charge and would pass a load test - it was just discharged. Try to ask service rep who's checking-in the car next time you have it in with the same problem to run a full array of tests. Bring them some home made cookies too. As it's been suggested here, going circuit by circuit to find out exactly what the ghost load is and under what conditions it drains the battery. Obviously it doesn't happen every night and this kinda intermittent problems are the toughest ones to diagnose, but it needs to be done. By asking them nicely and repetitively you might be able to have them do it and don't forget about them freshly made cookies ;) .. or at least store bought donuts as a last resort. Please keep us posted.
_ _ _ _
2013 Leaf S with 6.6kW charger and DC
23,000+ miles driven
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TonyWilliams
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Re: 2013 Leaf - Dead 12-Volt Battery every 2 Weeks

Wed May 01, 2013 10:57 pm

That's a tough one. If you have an ammeter, perhaps you could measure the current coming out of the battery at shutdown.

Then start pulling fuses to accessory items first. Something is physically draining it. Try turning the headlights physically off (not just the auto shutoff).

With the car plugged in on 2011-2012, the charge on the 12 volt was inhibited, and I'll guess that didn't get fixed for 2013. As soon as the car is charged, go out and unplug the car and measure the 12 volt battery.

Then let it sit unplugged and measure current and voltage every few hours.

Phatcat73
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Leaf Number: 401511
Location: Buffalo Grove, Il

Re: 2013 Leaf - Dead 12-Volt Battery every 2 Weeks

Thu May 02, 2013 8:53 am

I took the car in last Friday (4/26) and had it checked out again. Apparently there was a code logged for double pressing the start button when you're shutting off the car? They suspected that I left it in accessory, which I highly doubt as I showed them that the car beeps if you have the door open in accessory. I asked them if the code was dated, and they said no. This code could have been from a long time ago. They cleared the code. They also tested for any battery drain after the car was shutoff for an hour. the car should not drain more than 40ma. My car was draining 20ma for that short duration.

The above was performed after consulting Nissan tech support. Fortunately the dealership is very pleasant to work with and they try their best. They even brought out the Leaf tech to talk to me and provided an ICE rental.

At the end, I told them that my gut feeling is that I'll be back in with the same problem with a revised gameplan. Next time this happens, I want them to test the battery drain over a weekend, not just for an hour. They concurred. In the meantime I drive around with a Duracell battery jump start pack... just in case.

I have a tough love relationship with the Leaf. The car kicks me around every once in a while but then the Nissan dealer and Nissan corporate attempt to go over the top to remedy the several issues I had with the car.
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RegGuheert
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Leaf Number: 5926
Location: Northern VA

Re: 2013 Leaf - Dead 12-Volt Battery every 2 Weeks

Thu May 02, 2013 9:24 am

Phatcat73 wrote:Apparently there was a code logged for double pressing the start button when you're shutting off the car?
To me, that's just plain bad design. If they can detect a double press when shutting down and throw a code, why not simply shut the car off instead of going back into ACC? If someone MEANT to go straight from READY to ACC, they will still be sitting there and will simply be slightly annoyed. They can just press it again to get there. The opposite is not so forgiving. If someone MEANT to shutdown and instead double pressed, then they are not there to see that they have left the car on.

It seems clear that the car should NEVER go straight from READY to ACC.
RegGuheert
2011 Leaf SL Demo vehicle
10K mi. on 041413; 20K mi. (55.7Ah) on 080714; 30K mi. (52.0Ah) on 123015; 40K mi. (49.8Ah) on 020817; 50K mi. (47.2Ah) on 120717; 60K mi. (43.66Ah) on 091918.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

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Nubo
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Re: 2013 Leaf - Dead 12-Volt Battery every 2 Weeks

Thu May 02, 2013 9:29 am

I noticed you're still working with polymers.

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planet4ever
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Leaf Number: 1537
Location: Morgan Hill, CA, south of San Jose

Re: 2013 Leaf - Dead 12-Volt Battery every 2 Weeks

Thu May 02, 2013 1:37 pm

RegGuheert wrote:To me, that's just plain bad design. If they can detect a double press when shutting down and throw a code, why not simply shut the car off instead of going back into ACC?
<snip>
It seems clear that the car should NEVER go straight from READY to ACC.
Well, for whatever reason, perhaps just one of mathematical completeness, the engineers designed the car so you can go directly from any state to any other state. See this post where I spelled that out. In particular, single press without the brake cycles you from OFF -> ACC -> ON -> OFF as most of us are aware. Double press without the brake does the same thing in the opposite order: OFF -> ON -> ACC -> OFF. READY state is not part of either of those cycles, but is treated as ON for the purpose of entering the cycle.

[Please don't shoot the messenger.]

Ray
End of April 2013: Traded my 2011 SL for a 2013 S with charge pkg.

DanBaldwin
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Joined: Tue Oct 23, 2012 7:09 am
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Leaf Number: 3586
Location: Norwalk, CA

Re: 2013 Leaf - Dead 12-Volt Battery every 2 Weeks

Thu May 02, 2013 3:29 pm

Out of curiosity I checked my 2012 SL, and it doesn't run the dc/dc converter in accessory mode, or in on mode, only in ready mode.

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RegGuheert
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Delivery Date: 16 Mar 2012
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Location: Northern VA

Re: 2013 Leaf - Dead 12-Volt Battery every 2 Weeks

Thu May 02, 2013 4:20 pm

DanBaldwin wrote:Out of curiosity I checked my 2012 SL, and it doesn't run the dc/dc converter in accessory mode, or in on mode, only in ready mode.
Yet another design decision that I have to wonder about. They may not want to run down the traction battery, but they could put limits on that.
RegGuheert
2011 Leaf SL Demo vehicle
10K mi. on 041413; 20K mi. (55.7Ah) on 080714; 30K mi. (52.0Ah) on 123015; 40K mi. (49.8Ah) on 020817; 50K mi. (47.2Ah) on 120717; 60K mi. (43.66Ah) on 091918.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

bowthom
Posts: 656
Joined: Sun Jul 18, 2010 12:22 pm
Delivery Date: 23 Feb 2011
Leaf Number: 307
Location: Portland Oregon

Re: 2013 Leaf - Dead 12-Volt Battery every 2 Weeks

Thu May 02, 2013 5:37 pm

Sounds to me like you have a relay sticking. Will intermittently draw 100 mA for the coil plus whatever the load is.

A friend of mine spent $400 dollars at a repair shop trying to solve his AM no-start condition (Ford PU). He brought it over to my house and I discovered a stuck AC relay was drawing 10 amps. Simple fix really, if only they had done the diagnostics without changing the conditions of the test beforehand. They had replaced the alt, starter & battery. That classifies them as "parts changers," a common problem in automotive service.

Good luck and stay on them about a fix.
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Deliver 2/23/11 - 75k+ mi

sorphin
Posts: 90
Joined: Wed Apr 17, 2013 8:02 pm
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Leaf Number: 403273

Re: 2013 Leaf - Dead 12-Volt Battery every 2 Weeks

Thu May 02, 2013 6:15 pm

My '13 SV hasn't given me any issues so far (knock on wood). So I'm interested to hear what your end result is. Good Luck.

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