High Voltage Rechargeable Ground Stacked Lithium Ion Batteries Safety:High protection measures. Each battery module is equipped with aerosol active fire protection module, thermal runaway detection and active fire protection. Flexible: Free assembly of multiple battery modules, 1 PDU supports up to 8 battery modules. Model Ground HV-17.5K/20K Battery Type LiFePO4 Battery(LFP) Battery Style Ground Stacked Nominal Voltage 336V/384V Nominal Capacity 52Ah Battery Weight 175.5KG/199.5KG Battery Size 220x606x1410mm/220x606x1580mm Nominal Energy 17.472kWh/19.968kWh