Hoover PowerVac Pet BH10140CA - Charger Specification

Hi, I have a Hoover PowerVac Pet 20-Volt Lithium-Ion Handvac and cant find a charger for it anywhere. Tried customer support and this particular model is discontinued. Machine works fine by no means to charge. Could someone help me with identifying a replacement charger or specification of the charger so I can source one? MODEL No. BH10140CAI can get a universal charger but I dont know what is the specification or rating of the original charger. Also, I dont know the charging port pin size.I also have the Hoover charger part no. ZD5F230030US