Duracell new 12v - interested until I saw price

I purchased one of those $400 Duracell batteries that will give you a few hours of power if the household electricity goes off, so I -- rarely actually -- receive marketing emails from Duracell. This one arrived a day or so ago, -- it's a $900 12v.

https://www.duracellpower.com/products/duracell-lithium-deep-cycle-battery?utm_campaign=LFP%20NO%20Bonus%20Section%20%2801GGDDXEC2TJT0ZJ44JFEYT44T%29&utm_medium=email&utm_source=Win-Back%20Opportunities&_kx=En8M1IF6Lpcl-vQ7jcIhvT7DRSpPxFbZtt-CRMTPGEs%3D.RNbRCE