Third Party Ryobi 18V Lithium Batteries

[leehljp]

I wasn't looking for batteries but something on the side caught my eye while on Amazon; I clicked on it and it was 18V batteries 4.0 Ah with battery gauge. Don't know how good they are but they are $70 for 2.

https://www.amazon.com/dp/B06X1F8P5N...&pd_rd_w=yyGDC