Do I have to do any reset procedure on my 2005 LS430 windows etc after the AAA mobile service guy replaced my car battery?The navigation system rebooted (I hardy ever see that happen), and the car is now idling on start at 1200 rpm (used to be around 700 rpm, I think)

 

Drive and will relearn.

 

I've probably had 6 batteries over 15 years, as my car cannot safely get past 3 years on any battery it seems. Some at dealer, some from a parts store or AAA. Other than perhaps resetting Navigation region (yes, there is a region to select) I don't think I've ever had an issue. Another vehicle I have that is newer has a battery reset procedure (or wait 8 hour undriven I think) but I don't think Lexus requires it, at least from this era. Might reset some settings (transmission learning?) but no big deal.

 

Does anyone have thoughts on an AGM battery? I know a change is around the corner (3rd coming in the 4 years I have owned the car, which is not too bad) and I now carry around a NOCO for a quick jump , especially because of the cold in Canada.

 

I had one once, just because store recommended it. It did not last any longer than regular battery; in fact, I believe it died sooner. I will buy it on my car with auto-stop/start, where it is really needed, but no reason on my Lexus. The LS is the most battery-eating car I've ever owned, so I get a battery with a 3 year warranty and change it at around 2.5 years. 4 year batteries cost more and I don't want the risk of going beyond, as plenty of my "long life" batteries have died in extreme summer or winter at round 2.5 years old. Even under warranty in past, it was prorated and dealer did not include installation. Walmart has a battery for $150-ish (not AGM) with 3 year warranty, not pro-rated, free installation. It got good test results on youtube video vs more eexpensice ones. It is made by Johnson controls; that is my next battery this July.. Everstart I beileve is their branding.

 

I've had several they all died sooner than lead acid. They tolerate deep discharges better but also lose their charge faster. Only use them when required like in a hybrid.

 

I have one in my 2004. It was put by previous owner in 2020. I think it's going to bite the dust soon!

 

She should idle at 1200rpm until she starts to warm up, at which point it should drop to around 700rpm.
The "reset" procedure is to disconnect the battery for 15 mins, then reconnect it.
Sounds like you've already done that so she just needs to be driven for a few miles her to learn new settings.
The best is to mix up the driving, so some local slow-speed, some mid-speed, and some highway speed.
Most modern cars learn how you like to drive them and tune themselves appropriately.

As for conventional lead-acid vs AGM lead-acid, they die at around the same rate but much faster if regularly flattened or subjected to very high or low ambient temperatures.
Short battery life is the price you pay for living where it's really hot, along with faster deterioration of rubber parts and cracked dashboards.
If you live where it gets silly cold then you get rust and freeze damage as well as short battery life, but your rubber parts and dashboards are safe.
I live in the south-east UK where we rarely see extreme temperatures (25F-100F) but it's pretty wet here so we just have to put up with some rust and mould.

 

#orry to intrude but I was wondering ….. you probably answered it I live in Seattle, Washington . I have always liked interstate batteries straight from the source and recently I dumbingly purchased one at Costco who sells interstate as well (I highly doubt that) anyway I only used the car a few times jumped it once but that was because I thought I had left the car on acc mode now I know I didn’t , fixed my issue and now I’m definitely returning that stupid batter: if ever start isn’t available in wa , I don’t have the time to wait need to work , would interstate be sufficient.

 

AAA in Southern California uses Interstate batteries, I believe. I paid about $200 for the size 24F (AAA mobile battery service replacement at my home) recently.