Can Portable Power Stations also be REAL backup UPS worthy??

Can a Portable Power Station REALLY be a UPS??? *These are the ones I tested:* VIGORPOOL: https://amzn.to/3sC80OX Mango Power E: https://amzn.to/3Qv823c Vanpowers (aka Zendure ): https://amzn.to/49Blewm OUKITEL: https://amzn.to/3suQZ9s (As an Amazon Associate, I earn from qualifying purchases) 🔥These links support my madness🔥 💲 NordVPN: http://www.bmbsucks.com 💲 Members-Only Punishment: https://bit.ly/bmbmembers 💯These are my other Socials💯 🔹Twitter: https://bit.ly/BMBTw 🔹Instagram: https://bit.ly/bmbinstagram 🔹Tik-Tok: https://bit.ly/bmbtock 🔹Discord: http://bit.ly/BMBDISCORD ✉️P.O. Box for Mail✉️ Byte My Bits P.O. Box 77 Haysville, KS 67060