riniboo
Posts: 10
Joined: Fri Mar 23, 2018 6:46 am
Delivery Date: 23 Feb 2018
Leaf Number: 12345

2018 Leaf Error "Service EV System No Power" DIY Fix

Mon Nov 16, 2020 9:38 am

I have a 2018 Leaf and winter temperature has dropped to minus overnight recently in Canada, I couldn't start the vehicle last weekend and there was "Service EV System No Power" error on the screen. I just want to post this to help other people to fix the problem.

Symptom: Cannot start the vehicle, with error "Service EV System No Power" on the screen. Now, if you pay closer attention to the beep (say pressing the lock/unlock on the key fob), you can hear it has very weak beeping sound. I couldn't even open the charging port remotely.

What I tried (DID NOT WORK): I have been using jumper cables and Li-Ion battery booster over the years, I have saved many people on the parking lot by boosting their gasoline engine before I had the Leaf. I know what I am doing. Okay, I have tried using the NOCO Li-ion battery boost GB40 and IT DID NOT work, it did not start the vehicle. Then, I tried hooking up with the jumper cable with a gasoline car, nope it did NOT work either.

What I tried (DID WORK): I hooked up a 120V battery charger (it was for my boat deep cycle battery) and charged the Leaf battery for 10 min and I was able to START the vehicle, FINALLY!!!!

What I have learned: Looking up Tesla's boosting instructions, when using booster cables you cannot treat it like gasoline engine, they told you to charge the dead battery for 5-10 minutes before you try to start the vehicle. Unlike boosting a gasoline engine, I believe the "cranking amp" is not really relevant. Keep in mind, if you are in the -30C in Canada and someone tried to help you in the parking lot, you need to tell him to WAIT 10 minutes at least, that's gonna be a bit interesting.

What I did: It was a Saturday afternoon, I called the dealership and they told me there was no appointment available until the following Monday. Yes, it may be under warranty but I would need to take a half day off, drive to the dealership, wait there.. it's not worth my time. So I went to Canadian Tire and grabbed a battery for $140 CAD. Installed it, very easy. Notice it in the picture, the original Nissan battery has +/- terminals CLOSER to the right (they call it "negative on left and positive on right corner"), however the new battery I got has the terminals closer to the LEFT (they call it "positive on left and negative on right corner"). There is no problem for the RED positive terminal because there is a lot of slack, but for the BLACK negative one, it was a very tight and I barely made it. Okay after installing the new battery, vehicle started no problem! To make sure this fixes the problem, I posted this after 15 days. so you have confidence to follow what I did if you encounter the same issue. Hope this helps!!!! But honestly, I am not very happy with Nissan because the battery just died so quickly.

Battery I used:
MOTOMASTER OEPLUS Group Size 51 Battery, 500 CCA
SPECS - Group #: 51; CCA: 500; CA: 615; RC: 75
ORIGINAL EQUIPMENT - GROUP #: 51; CCA: 410

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goldbrick
Posts: 1090
Joined: Tue Aug 01, 2017 3:33 pm
Delivery Date: 01 Aug 2017
Leaf Number: 311806
Location: Boulder, CO

Re: 2018 Leaf Error "Service EV System No Power" DIY Fix

Mon Nov 16, 2020 1:04 pm

Nice write-up and thanks for the tips.

For any future readers, a size/type 51R instead of a size/type 51 battery will have the terminals oriented in the same way as the original battery.

SageBrush
Posts: 5571
Joined: Sun Mar 06, 2011 2:28 am
Delivery Date: 13 Feb 2017
Location: NM

Re: 2018 Leaf Error "Service EV System No Power" DIY Fix

Mon Nov 16, 2020 1:59 pm

Nice catch, and nice fix.

The tricky part in choosing a 12v for hybrids and EVs is that they last a lot longer if you can find a 'deep cycle', long runtime battery. I've been looking for a replacement for my Tesla and so far have not found one. IN GENERAL, the batteries we want have a relatively lower CCA and a longer RC. I also want a higher capacity battery but that is a separate issue. RC of 75 minutes is OK, 90 minutes is hot stuff.
2013 LEAF 'S' Model with QC & rear-view camera
Bought Jan 2017 from N. California
Two years in Colorado, now in NM
03/18: 58 Ahr, 28k miles
11/18: 56.16 Ahr, 30k miles
09/20: 54.3 Ahr; 38k miles
-----
2018 Tesla Model 3 LR, Delivered 6/2018

LeftieBiker
Moderator
Posts: 16107
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: 2018 Leaf Error "Service EV System No Power" DIY Fix

Mon Nov 16, 2020 1:59 pm

Looks like we have our first Gen II dead accessory battery...
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

HerdingElectrons
Posts: 197
Joined: Sat Sep 08, 2018 3:20 pm
Delivery Date: 17 Sep 2018
Location: Central Coast, Ca

Re: 2018 Leaf Error "Service EV System No Power" DIY Fix

Mon Dec 21, 2020 4:38 pm

I also had that same issue a few months back & also revived the car with a 120v battery charger. The battery was reading 5.33V but shot back up to 12.xx after about 10 min

Dealer replaced with an OEM one. They also performed a current leakage test and found my car to be exceptionally low on parasitic power drain so it was just a weak OEM battery
2018 SL Pearl White 4.5/3.9 Warm/Cold weather

09/18-01K Mi: 114.52AHr / SOH= 99.20%
04/19-10K Mi: 111.45AHr / SOH= 96.54%
11/19-20K Mi: 107.44AHr / SOH= 93.07%
12/20-33K Mi: 105.39Ahr / SOH= 91.29%

gillmj24
Posts: 12
Joined: Wed Jun 19, 2019 2:27 pm
Delivery Date: 28 Dec 2020

Re: 2018 Leaf Error "Service EV System No Power" DIY Fix

Sun Jan 03, 2021 8:10 pm

Maybe this would help? Deep cycle, up to 33 Amp-Hour, but not cheap. Based in Canada too.

https://www.kendrickastro.com/battery.html

LeftieBiker
Moderator
Posts: 16107
Joined: Wed May 22, 2013 3:17 am
Delivery Date: 30 Apr 2018
Location: Upstate New York, US

Re: 2018 Leaf Error "Service EV System No Power" DIY Fix

Sun Jan 03, 2021 8:36 pm

I don't think their "Power Packs" are designed as automotive replacement batteries. We usually just suggest a 51R configuration AGM (absorbed glass mat) automotive battery. AGM batteries better withstand being below 100% charge because the fiberglass matting inside somewhat discourages the formation of lead sulfate crystals - at least large ones. They aren't as tolerant of low State of Charge (SOC) as lithium batteries, but they are a good lower cost compromise.
Scarlet Ember 2018 Leaf SL W/ Pro Pilot
2009 Vectrix VX-1 W/18 Leaf modules, & 3 EZIP E-bicycles.
BAFX OBDII Dongle
PLEASE don't PM me with Leaf questions. Just post in the topic that seems most appropriate.

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