I bought a 2014 SL a few weeks ago. I was charging it with the 120v charger it came with for first week until my AeroVironment L2 EVSE https://www.amazon.com/Nissan-LEAF-EV-Charger-Plug/dp/B01N6BER55/ref=sr_1_8?ie=UTF8&qid=1519604489&sr=8-8&keywords=aerovironment+leaf+charger
came in and I was able to get a 50amp circuit ran off the main breaker box. Charging with the 120v I never had an issue. I installed the L2 a couple weeks ago and at first it would charge fine. As in, it would charge to 100%, the 3 blue lights on the car would be solid for a few minutes then shut off, then the EVSE would go from charging to ready to charge state. I could leave it plugged in and it would stay in the ready to charge state.
Starting last week I went in the garage and I could hear the EVSE tripping back and forth from charging" to "ready to charge" state every 5-10 seconds. This seemed very odd to me and I would just go push the stop button, check the car and very it got 100% charge. About 3 days ago I went to drive the car and it was flat out dead. Door locks, nothing would work. I found the 12v battery was dead. It looked factory but I threw it on my charger anyways and it would never charge back up. I went and bought a optima yellow top 51r and put that in. Everything seemed great, even the L2 charger shut off (went in to ready to charge state) when the leaf hit 100% and it stayed off. I had heard a bad 12v battery could cause this issue where the charger won't shut off when it gets to 100% so I figured this was the fix.
Well I still have this problem. I've only had the new 12v battery for 3 days now. It tests just fine, as it should. But I am still having the issue where I plug in my L2 EVSE and the leaf will charge to 100%, but the EVSE keeps changing states between ready to charge and charge every 5-10 seconds. From what I understand, the EVSE just supplies power, and the charger is built in the car. Once the car gets 100% charge it will still "charge" for a bit as it balances the cells. But then the charger stops, and therefor the EVSE should go into a standby state and stay there.
Today I thought I'd try the 12v reset and disconnect the ground for 5 minutes. Then I went for a drive and took about 30% off the battery and came home. I plugged in the L2 and it starts charging just fine. I would check on it every 10 minutes or so and I could see the charging light on the EVSE start to flash quicker which means its close to full charge. After about 2 hours the 3 dash lights on the leaf were fully lit and the car read 100% charge. However the EVSE went from having the charging light flashing, to it just being solid lit as it if was still charging. So I let it sit another hour and no change other than the 3 blue lights shut off indicating its not charging. Although the EVSE charging light is lit and my electric current detector pen goes off when I touch the cable meaning its got power going to the car.
So I have stopped it and I have hooked the 120v charger up to it even though it has 100% charge. (Edited after posting) Just after posting this the 3 dash lights are now off and the L1 charger is in standby state. So it seems to be the issue is just when I charge with my L2 charger.
I'm not sure how public L2 chargers work, but when I was at work I plugged it in to charge on their L2 charger. I was busy and never got around to moving the car after 4 hours so it sat there on the charger for 8 hours. I noticed the charging station charged me for the full 8 hours. I'm not sure if this meant the car was charging that long or if it just charged me because I never took it off the charger. Did it keep charging because my L2 on the car is having issues?
The next time I have it on the L2 and it starts flipping back in forth from charging to ready to charge, I will take a quick video and post it.
Any suggestions on what I should take a look at? My bluetooth OBDII is late from Amazon so I can't get any leafspy readings yet. Hopefully by tomorrow.
2014 SL 40,128mi. Purchased Feb 1, 2018
AHr=58.91 SOH=90.07% 395.77V Hx=87.52% 37QCs & 1248 L1/L2s, 256GIDs