If anybody else is in the same position as me (waiting months for an ULTRABATT 300CCA to come off "back order") I have an update today from Ultrabatt. They have been taken over by MOTOBATT. The delay has been a result of re-branding. The new range was unveiled at a trade show in Europe earlier this month and are now branded MOTOBATT in the familiar yellow colour. Should be available in retailers from Feb/March 2026.