It can matter, but it depends. Usually batteries within
a bank should be (brand/model/age/chemistry/size/voltage) matched, and then sometimes you have some flexibility across
If by "no maintenance" you mean gel or AGM
and the starter is flooded lead-acid (FLA), you may already have a mismatch. OTOH, some chargers are OK with charging
AGMs and FLAs on the same setting, even if the charging voltages aren't optimum for each different style.
Anyway, a good place to start is with your charger
manual. It may also suggest the size of each of the multiple banks should be roughly equivalent.