Well, I bought one of there models...

UnitPackPower Battery 48V 14.5AH for Ebike,Electric Bike Lithium ion Battery 48V 1000W / 750W / 500W for E-Bike Motor,Waterproof Shell https://www.amazon.com/dp/B086GZK6MQ/ref=cm_sw_r_cp_api_i_vs51EbQR8T3A5

It actually arrives this afternoon sometime. I took a chance so we will see. Only thing is I've been waiting for over a month for it, not sure why it took so long. I did get a little bit of confirmation from the guy from the uk( I forget his tag) I will post what he told me.