I emailed Min from SOK battery about the 24 volt battery about 6 weeks ago. He told me end of July 2021 and that is what his website says. Now it is near the end of July. I emailed him again to check on any updates. Now he is saying end of August to early September. I was having high hopes to get two of these batteries. But it is taking so long that I may make a move to Big Battery for a 12v Owl Max 2 instead.