Energy Nominal: 2.5 kWh. Cell Type: 15ah Lithium phosphate Cells. Series Max: 2 Packs for 48V.Please feel free to ask questions about exact item condition. Please if there is any question that arises or if there is a problem with your order, feel free to ask and we will take care of it promptly. Please double check the Item specifications ask if you have any questions. Thank you for your interest in this item If you have any questions please feel free to ask! We have 30 days return for changed mind or not compatible for your system. This item is in the category "Consumer Electronics\Multipurpose Batteries & Power\Rechargeable Batteries". The seller is "batteryevo" and is located in this country: US. This item can be shipped to United States.