I ordered one of these https://www.amazon.com/lifepo4-battery-lithium-storage-73mm×400mm/dp/B07SRYPX49/ref=sr_1_6?keywords=LiFePO4&qid=1570899197&sr=8-6&th=1
this is what turned up
The seller has asked me to remove my comment that the battery is secondhand as they claim it's new.
