Battery warranty on 2024 new Emira

[EspritGuy]

A multimeter won't perform a proper battery health check. Voltage is not a measure of power. You need a proper load tester. And even amongst load testers, there is a wide variability in the result they can provide. (see video)

Like nimbus mentioned here, what is "some"?

There is a chance your battery is totally fine for years to come. If the engine is starting well and the computers aren't throwing random codes like they do these days when there are large voltage drops during cranking, then I wouldn't replace it. If you have a manual trans, you can wait until the day it doesn't start and just bump-start it to your local auto parts store to get every penny out of what you have.

Dealer recently flagged my original battery at 50% life remaining and replaced it with a superior AGM-style unit, saying the OEM product was (sort of) substandard. This was at approx. 4,000 miles.
These 'age' assessments should factor in your car's date of manufacture (mine was 10/23). No telling how long the stock battery sat in inventory beforehand. Also car use and climate considerations.
The idea of being stranded after a spirited drive to a remote destination didn't appeal to me.
I now have a better idea of battery life timeline.
Others are managing this situation with monitors as well as replacing OEM with lighter, better performing units.
FWIW

 

[Davebeats]

Ended up swapping my battery for this one

Duracell Ultra Car Battery | Group 48 | 760CCA | Platinum AGM - SLI48AGM

Shop the Duracell Ultra Group 48 AGM car battery at Batteries Plus. Maintenance-free performance and strong starting power. Order online or schedule installation.

www.batteriesplus.com

direct fit

for some reason most of the auto parts stores were giving me marine batteries when looking for the Emira, and I didnt really want to spend $900 for a battery

 

[Kaz]

Somewhat related also a good time to orient yourself with how to unlock the car when it has no power, so that you can remove the rear trim and access the trunk release cable inside the car...so that you could then jump the battery with lithium jump pack (or whatever you have). My shop never got around to it but they are going to put a quick connect somewhere accessible from the outside to jump without going through all that -