Tinkertech

Even my 17 Corvette is on a battery maintainer 24/7 due to it being a 'garage queen'.

Almost all smart Corvette owners use a maintainer, GM even provides one as an option, on all their Corvettes because they know that a lot of them sit for long periods of time between being driven.

Also Corvettes have a large battery and a big alternator but all the parasitic current draw from all the electronic systems will draw it down if given enough down time.

This is the price you pay for all the electronic gizmos.

TheCDN

This is what I'm using. NOCO Brand Bought them from Amazon.

2-Amp Battery Charger, Battery Maintainer, and Battery Desulfator

https://no.co/genius2

X-Connect XL Eyelet Terminal

https://no.co/gc008

midcow3

https://www.clublexus.com/forums/nx-...l#post11758203

BATTERY TENDER PLUS 12V, 1.25A BATTERY CHARGER

websurfer

I use the Noco one below. This one takes a while to charge, I talked to the CarCareNut and he agreed that slow charging is better than the faster charging one. Best to even charge without the battery in the vehicle.


I lend it to my friend and he even use it to repair his car battery a number of times.

websurfer

I contacted the dealer on the original question: Small voltage drops are normal. Somehow for the newer NX, the key fob should be placed at least 9 feet aways so it would not communicate with the vehicle so less power draw. I tried that and it worked. I verified before and after by measuring the power.

midcow3

BATTERY TENDER PLUS 12V, 1.25A BATTERY CHARGER

ONE OF THE BEST ONES, if not the best trickle charger you can get

YMMV,
MidCow3

lsft

The 12V battery tends to drop when there is interaction with the vehicle. I have also noticed that there is a drop around 6-7am and it seems the car communicates with the Lexus servers at that time for my vehicle. Not sure if it's done at different times for different vehicles. If you walk past the vehicle with the key fob, the 12V battery will dip and slowing raise again. I have noticed that if you force stop the Lexus app (Android app), it seems to be able to maintain the 12V battery much better, but one disadvantage is you do not get push notifications. I am still trying to validate if the Android app is causing the significant drop in voltage when left running on the background on Android device. Keep in mind that the app is close when you close the app, but the app still runs in the background for other functions.

kiska3463

All good recommendations but how about leaving your NX on airport parking where is no power to your trickle charger?
How about then call CAA every time to get boosted?
Or your NX isnt design for that???I mean parking for more then 3 days?
There is still solar charger option which no one is talking nor using?
Can someone elaborate on that please?
If that works which solar trickle charger works?
Thank you

gamma742

https://www.batterytender.com/produc...ndshield-mount

lsft

Parking for 3 days shouldn't be a problem. I would just ensure the mobile apps are not running and it seems to be able to drop very little. After 7 days the car seems to go into a sleep mode as well.

Before parking at the airport, I would connect a trickle charger for a day to ensure the battery is charged up as much as possible.

kiska3463

Thank you all