Let's heed @snario's suggestion and switch over the variables to include the unit. Great first issue for anyone who wants to contribute!
Something I've found useful in the past is to add the unit as a suffix to the variable name. e.g.,
MAX_BATCH_SUBMISSION_TIME_S
POLL_INTERVAL_MS
Originally posted by @snario in https://github.com/ethereum-optimism/batch-submitter/pull/7#r585682849