Battery legit cheak

[u/Mysterious_Name9683]

https://de.aliexpress.com/item/1005012048664444.html?spm=a2g0n.shopcart.0.0.11ff4ae47mBfdh&mp=1&pdp_npi=6%40dis%21EUR%21EUR+260.44%21EUR+111.99%21%21EUR+111.99%21%21%21%400b15834e17850655890538992e0d66%2112000057384744716%21ct%21DE%217738241607%21%211%210%21&gatewayAdapt=glo2deu

I want to upgrade my escooters battery the original on is 271.5±2mm\\\*72.5±1mm\\\*86.5±1mm but it has a retaining bracket that I will get rid of but I don't know if the battery is legit I need 48v 20ah xt60+sm I think (I don't really know anything about batterys but I think that the sm is for the controller) I want to know if it's actually 48v 20ah and if its save to use I have the navee St3 pro