lexsc4

I think this is an hybrid issue. Standard NX350 can be use to jump start other cars. The hybrid is different. That’s why I carry portable jumper in all our cars in our household to help family, friends and strangers out (did that a few times just to make sure the portable jumper works after sitting in the car for a year).

Tarnshoe

is there a specific portable jumper you recommend?

lexsc4

cheap and effective, don’t have to cost $200 like a NOCO. have 1 in my ES350 and 1 in my son’s older RX350. In fact just ordered another today for my wife’s 2 weeks new NX350h.

It sat in a my ES’s trunk for a year and lost 1% charge, help jumped a stranger’s Honda pilot a few weeks ago. The Honda started right up with this jumper.

https://www.walmart.com/ip/TOPVISION...rter/515697472

Smooth2o

I don’t get it. The question revolved around leaving the vehicle for a long time. So, assume you have a low level of charge in the HV battery by using up all of the EV miles. Somewhere I saw that that used about 70% of the HV battery. So why would leaving the low level of charge result in less depletion of the 12V battery? I assume you meant that if the 12V was disconnected that then the HV battery was then disconnected.

Unless you mean that the engine doesn’t start unless the HV battery is low, but how would that help if you were remote?

CdO

Yes, the HV battery SoC is related to leaving it for vacation, not the 12V battery.
Does that help?

Lexus22563

I have had my 22 NC350h for 23000 miles now and have not had a battery issue. That said my digital key won’t download to my phone. It might be a blessing. I prefer to use my key fob anyways

SgtLip

NOTE:
I just spoke to NOCO Rep today about which charger to use for my 23 NX 450H+Base. They recommend the Genius 5 Charger. All of the GEN#X models are made for boats.

lexsc4

yep. We have a portable jumper in each of our 3 cars in our household. 08 RX350, 17 ES350 and a 24 NX350h. I have used mine a couple of time on my ES350 and help a few others. Works likes a charm every time.

SgtLip

Okay, I have the NOCO GBX45 Booster X. I've had my 12V battery on my PHEV drain down twice now. Was going to use the Booster to jump start but figured that would get me going but may not actually fully charge the 12V which is why it's draining. So that is why I' looking at a charging device.

I'have been using NOCO and there is another thread on the forum where everyone is suggesting CTEK. Can't tell what the difference is. AND I'm not sure I need or want a charger. But I ave to be able to depend on the 12V to get in the car and start it. If not then I'll be using the Booster Box a lot more than necessary in my opinion.

Would you suggest having both and use Booster for emergencies but Charge it maybe once a moth at least to make sure it is always topped off? Appreciate your thoughts.

Rodent77

I have a late 22' 350h Takumi, if I leave it for 10 to 14 days the battery goes flat, it would be nice if the app would warn me it is getting low so I could hop in an give it a run, I've got a booster but had the great idea of keeping it in the boot (trunk), which meant accessing by climbing through from the drivers seat last week. The previous time it happaned we were all packed and ready to go away for the weekend, arrival at the destination was time critical so we ended up taking my wife's car instead, not the sort of thing you expect from a new Toyota product. May be worth investigating a more beefy battery.

lsft

I've used both the Genius 5 on my PHEV and have it wired in so I don't to deal with the clips every time. I also have a NOCO Boost Plus GB40 which is enough to boost the car. You have a trickle charger that can help prevent it from losing enough juice and it's actually better to keep the battery maintained than letting it drain all the way. The more times it drain's the more worst the battery gets. You rather prevent it from happening than letting it happen.

This is how I got it installed:

BTW, do you use remote start?

SgtLip

In the amount of time I owned the car, 9 months, I used it twice. I always forgot about it until I was walking to the car.

websurfer

Went to dealer yesterday to drop off the vehicle and today to pickup my NX.

Summary:
1st they complained I had an aftermarket dashcam (it shouldn't be the problem since it's not ON when vehicle is OFF)
2nd they indicated they tested and charged the battery fine with the DCA-8000. The tech indicated that the parasitic draw was between 20-30 milliamps which is between specs still.
3rd the report indicated if the smart key is nearby it will cause amps to climb about 5 amps. If the smart key is over 9 FT or more, it shouldn't be a problem per test.

wrinkle

The 9 foot specification is great, actionable information to have, assuming its correct/verified by Lexus and the tech was trained to parrot it. In my home, I was worried what the distance was (it now seems the distance from my garage to where I keep the key every night is greater than 9 feet) - so I had bought a to stash the key in, every night.

The 2nd key fob (now that I finally have it), I have turned off and stash in different room that is also more than 9 feet away from the garage.

websurfer

I tested that theory on 9ft away yesterday by placing the key 9 feet away from garage. Surprisingly the tech was spot on. I measured the change in voltage and it's a very small drop have the key far away from vehicle.

I was searching for a faraday box on amazon yesterday but didn't buy it yet. Thanks for suggestion on the pouch, I have to check it out.