Created attachment 9224 migrate_goodies_url-battery-plugin.patch The attached patch updates the URLs from goodies.xfce.org to docs.xfce.org.
Kevin Bowen referenced this bugreport in commit 0e8d1eca98d6d7f7bdd0d4a7f52092a2160fd90a Update support URLs from goodies.xfce.org to docs.xfce.org (Bug #16154) https://git.xfce.org/panel-plugins/xfce4-battery-plugin/commit?id=0e8d1eca98d6d7f7bdd0d4a7f52092a2160fd90a