Anyone know if there's a way to buy a new battery for the DJI Focus?

Nothing on the DJI store - try somewhere like Ebay or a specialised local DJI dealer in your area.

I've checked everywhere online. All vendors show it as being out of stock, which I think means it's just not available.

Hello there San2C. Thank you for reaching out and for the inquiry. You may try check our DJI Where To Buy platform on this link ( https://www.dji.com/where-to-buy ) to see if those batteries that you need is available. In addition I hope that you can get some recommendations from our DJI Co pilots with regards to this inquiry. Thank you and please be safe always.

DJI Stephen Posted at 10-4 19:44
Hello there San2C. Thank you for reaching out and for the inquiry. You may try check our DJI Where To Buy platform on this link ( https://www.dji.com/where-to-buy ) to see if those batteries that you need is available. In addition I hope that you can get some recommendations from our DJI Co pilots with regards to this inquiry. Thank you and please be safe always.

Thanks, but I think my only hope at this point is to find a cross reference. It's not available anywhere.

San2C Posted at 10-5 07:05
Thanks, but I think my only hope at this point is to find a cross reference. It's not available anywhere.

Hi there San2C. Thank you for the reply and you are very much welcome. If you have any other inquiries or concerns with DJI. Please feel free to post it here at DJI Forum. We are all here to help and support you.