On import duties and tariffs - [1]
Batteries appear to have a 7.5% tariff from China - https://www.greentechmedia.com/articles/read/trump-administration-lowers-import-tariffs-on-chinese-batteries#:~:text=The%20White%20House%20halved%20import,7.5%20percent%2C%20effective%20February%2014.
Check tariff on any product - [2]
Port of Kansas City does appear to run container ships - as it shows arrivals and departures of vessels which are cargo ships - [3]. See also wikipedia - [4]. It says it's equipped with a 100 ton crane.

Import Duty

Nickel-Iron Battery Importing