The information that can be read about a 12V battery using diagnostic scanners includes STATE OF CHARGE, LIFETIME, VOLTAGE, and CURRENT. Battery health should be checked with load testers, such as "MIDTRONICS."
On the other hand, OBD testers can provide more information about HV batteries...
Limiting NCM battery charging to 80% allows you to enjoy high SOH for longer. If you don't need long ranges on a daily basis, this type of charging has many advantages. My observations show that LG NCM batteries are very durable. I work in a car repair shop, but in Europe, I often deal with...