https://apnews.com/b0bf468cad2941d6a3022861cc56b148

CAPE CANAVERAL, Fla. (AP) — Space station astronauts are swapping more batteries in their second spacewalk this week.

NASA astronauts Andrew Morgan and Christina Koch (Cook) floated out of the International Space Station on Friday. They're replacing decade-old batteries in the station's solar power network with new and improved lithium-ion versions.