You can disagree, but that is what Nissan says to do.
I haven't seen this concern with (quality) 12v trickle chargers/maintainers. I know plenty of people who have their motorcycle/midlife crisis convertible/RV stored for 3-6 months on a trickle charger and they start right up.The real problem with long-term storage is the 12v battery (and that goes for any vehicle); no matter what you do (and I'm not a fan of maintainers), it will probably require a re-charge/re-place if not used for many months.
I'm unsure why you're not a fan of maintainers, I use one on my Leaf for two months every winter and when I return, it's been fully charged and ready to go. It certainly doesn't need to be recharged nor replaced at that point.I disagree: I would never pull the HV disconnect unless necessary for maintenance/service reasons (like removing/replacing the main pack). Leaving the main pack ~50% is fine for almost any long-term storage (days/weeks/months). In addition, don't leave an EVSE connected since this simply drains the 12v battery (many threads on this).
The real problem with long-term storage is the 12v battery (and that goes for any vehicle); no matter what you do (and I'm not a fan of maintainers), it will probably require a re-charge/re-place if not used for many months.
"When the EV system is off for an extended time, the 12-volt battery may be automatically charged for a short period of time on a regular basis."https://www.speakev.com/threads/doe...eave-my-leaf-unused-for-a-long-period.162965/No need to use a timer, since the traction battery has very little self draining, it can go months and not lose much SOC. On the other hand, the 12 V battery has constant discharge due to remote diagnostics so it needs to be protected either with a maintainer or by disconnecting it according to the instructions in the manual.
That's the theory, however on two different 2018 Leafs, their 12v batteries have gone dead within a few weeks even though the HV battery had ~50% SOC. Seems to be a mystery whether this works and on what year models?"When the EV system is off for an extended time, the 12-volt battery may be automatically charged for a short period of time on a regular basis."https://www.speakev.com/threads/doe...eave-my-leaf-unused-for-a-long-period.162965/
I guess I should qualify my response with the fact that I have a Lithium 12v (see sig)...so I've never had a "dead" 12v problem.I'm unsure why you're not a fan of maintainers, I use one on my Leaf for two months every winter and when I return, it's been fully charged and ready to go. It certainly doesn't need to be recharged nor replaced at that point.
While true, it just isn't enough to keep (most) 12v batteries "alive". It's a great idea, but the charging algorithm just wasn't sufficient."When the EV system is off for an extended time, the 12-volt battery may be automatically charged for a short period of time on a regular basis."https://www.speakev.com/threads/doe...eave-my-leaf-unused-for-a-long-period.162965/
Then you will certainly have a dead 12 volt battery after probably a couple of weeks or month depending on how healthy your 12 volt battery is. When the leaf is just left plugged into the EVSE, it will not cycle to charge the 12 volt battery periodically. Instead it will continue to slowly drain to 12 volt battery while monitoring the plug.What if you Just leave the car plugged in?
So plugging in the main battery doesn’t help, and may hurt. Well that’s annoying. Sounds like what you want to do is NOT plug your leaf in, but attach a decent trickle charger to the 12v UNLESS you have a lithium 12v in which case you want to do nothing at all. Do i have this correct? Or perhaps DO plug the leaf in to keep it from messing with the 12v, THEN put a decent trickle charger on the 12v (unless the 12v is lithium) in which case you don’t. When people store a car they generally do not know how long they are storing it for. Weeks or years.Then you will certainly have a dead 12 volt battery after probably a couple of weeks or month depending on how healthy your 12 volt battery is. When the leaf is just left plugged into the EVSE, it will not cycle to charge the 12 volt battery periodically. Instead it will continue to slowly drain to 12 volt battery while monitoring the plug.
There are apparently two systems and two batteries on a volt; the traction (main) system which is waay more than 12v, and the 12v system. They use different batteries. As for every EV I have no idea different brands do things differently.So ,when storing an ICE vehicle for months or years, typically you disconnect the 12-Volt battery. Is this not a good idea with an EV?
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