https://www.i-tecc.de/shop/lifepo4-batterien/lifepo4-batterien-12v/
English:
https://translate.google.de/translate?hl=&sl=de&tl=en&u=https%3A%2F%2Fwww.i-tecc.de%2Fshop%2Flifepo4-batterien%2Flifepo4-batterien-12v%2F
Given that the UK haven’t left the european market the shop still shuold ship to England. Better ask beforehand.
Ahoi
Pom