Battery pack for HOMPANY V16 cordless vacuum cleaner

I want to give this vacuum a great review because the vacuum itself is actually pretty great, however I have to give it a 1 star because I can’t seem to be able to replace the battery!!!!!! I’m starting to panic now because it seems to be always OUT OF STOCK or SOLD OUT? !! I have reached out to the company and they say to check back frequently. I have but am no closer to replacing the battery. PLEASE let me know if anyone has managed to get one!!!!

I am trying to replace battery, but remaining to be sold out. Don't buy this vacuum until replacement battery becomes available!!

How are we supposed to get a replacement battery but it always sold out