Talk about a coincidence. After my last On the Water Online blog about the many benefits ice anglers can achieve, when they replace the sealed lead-acid battery they use to power their electronics with a new lithium-ion one, I read with great interest how the International Space Station did the very same thing this week. For a moment I thought that NASA must be reading OutdoorCanada.ca. But alas, I learned that the Space Station upgrade to lithium-ion batteries began in December 2016, involved 13 astronauts, 14 spacewalks and the Canadarm2. The last phase of the enhancement project was completed only days ago, so now the entire primary power system has been upgraded to lithium-ion technology.