Base + control unit (BDU) for Sofarsolar BTS 5K-BDU storage battery€231.37PriceQuantity*Add to cartBuy NowAvailable to order50SourceExternal warehouse (+5-10 days)Delivery to GeorgiaAvailable (Add 15 days)Brand NameSOFARSOLARPart NumberBTS 5K-BDU_baseWarranty1