Type: Li-Ion Nominal Voltage: 12V Size: Custom Nominal Capacity: 50000mAh Voltage: 12V Capacity: 50Ah Connectors: 5.5*2.1mm DC jack+5.5*2.1mm DC plug Dimension: Custom Battery charger: 12.6V US/EU/UK plug Product type: 12V lithium ion rechargeable batteries Battery cells: A grade 18650 cells Certificate: