Question Why does a Desktop PC SMPS need batteries?

Nav9

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Mar 28, 2022
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I may buy this Asus 550W SMPS because of the 6 year warranty, the proximity of the service centre and because the internal parts seem to be of good quality.
However, the detailed product description says:

Batteries ‎: 1 A batteries required.
Are Batteries Included ‎: No
Number of Lithium Ion Cells ‎: 7
Number of Lithium Metal Cells: ‎7


It has to be a mistake, right? Apart from this, they seem to have taken a great deal of care and paid attention to detail when presenting the product.