I note this refers to Lithium Ion (LiCoO2 or LiMn2O4) which is different to Lithium Iron (LiFePO4) this is the battery most of us are interested in as far as a lithium starter. It may just be a typo or a generalization. I'm very keen but not keen enough to risk using Lithiums on a 2 year old outboard yet.
Thanks for posting Disorderly.
TMC