Hey Team,
Sorry I am currently will with COVID from unknown source grrr~!
The batteries are definitely replaceable but like everyone, we need to find a source else its back to manufacturer WheelTop. The battery is screwed against the derailleurs so some work is needed to have them removed.
I have seen the Aliexpress link selling the EDS TX online. They seem to deliver to many states but I cannot tell if all are there since I am a "Singaporean", Senator Tom.
BTW, first ride month review is out but done while I am ill.. so forgive me on the quality as I can barely talk with a sore toad throat.
Not sure if you can see my video link clearly but search for Taicho Cyclist Channel and you can see the video if the hyperlink in my post is somehow blocked.