I'm sorry for your experience and its worrying me a bit.
Since you went through the Ebay system - make sure you rate him.
I also have a order with him but it isn't shipped yet (he said he's waiting for BMS and charger). Not sure what to do as I don't think he'll refund my money.
As for your battery - see if you could get a voltage without the BMS connected. If its just a BMS - he may send you a new one... or you maybe able to buy a BMS only from Ping. I don't know if these BMS's are universal - seems like it is (correct me if I'm mistaken).
Since you went through the Ebay system - make sure you rate him.
I also have a order with him but it isn't shipped yet (he said he's waiting for BMS and charger). Not sure what to do as I don't think he'll refund my money.
As for your battery - see if you could get a voltage without the BMS connected. If its just a BMS - he may send you a new one... or you maybe able to buy a BMS only from Ping. I don't know if these BMS's are universal - seems like it is (correct me if I'm mistaken).