Battery Life SaverBattery Desulfator for 48V Electric Vehicles or Battery BanksBLS-48ABLS-48A is designed for use in 48 volt renewable energy battery banks or use with battery powered vehicles (Use the (BLS 48N) for 48 volt golf carts). Ideally mounted full time to constantly keep the batteries in optimum condition, the BLS-48A comes with 3/8″ eye rings for attachment to the battery terminals..