Yes, to match cells you recharge, discharge and recharge measuring capacity. Another less efficient way is to measure resting voltage after they sit for an amount of time.
I am one who does not accept "I dont know" as an answer. If the technology is similar, then I infer or assume til I find out otherwise. I know this is a conflict as an audiator, however it works well for error free work.
At work in a production environment we need work to be error free. Well, upon auditing I find those who enter their names in reverse are more prone to errors than those who do it correctly. Last name first name, vs first name last name. Maybe they cant follow diretion or are purposely hiding?
Anyway, I audit the names, then when I find one that is backwards, I audit the work and 99% of the time I find errors on those folks.
Anyway, according to the gen1 guys the 10% mark generates a code and prompts Honda to replace it. I agree with you, as a new owner and low miles I think they should go ahead and replace it with a new one if not go with the lifepo4 the newer insight are using now.
If this was a car from 06, 5 or so previous owners, then I think you deserve a hodgepodge battery with sticks that were 39ft under water in the back of the Honda warehouse somewhere.