Product name : Electric Bus LiFePO4 Battery Pack 540V 400AHItemSpecificationsNominal Capacity400AhNominal Voltage540VCharge TypeCC/CVCharge Cut-off Voltage657VDischarge Cut-off Voltage450VTypical Charge current≤100AContinuous Discharge current400APulse Discharge Current (3Seconds)1500ABattery Weight≤2550KgInternal Resistance<2mΩBattery Cycle Life2000times (80%DOD)Working temperatureCharge0～45℃Discharge-20～65℃Storage temperature-20～60℃Atmospheric pressure86～106KPaRelative humidity25%～80%1. The LiFePO4 Batteries have Long cycle life. No memory effect. More than 2000times cycle life. This is 3times more than Lead Acid Battery and Ni-CD or Nickel Hydride Battery.2. High C-Rate discharge / charge capability. 3. High peak power available under high depth of discharge.4. High energy density,Website:http://www.ener-byte.com, small size and light weight.  Much lighter weight than Lead Acid batteries, VRLA Battery, GEL Battery, OpZs and OPZV Batteires.5. Good performance at high & low temperatures. The LiFePO4 battery can work from temperature range -20 Celsius degrees to +60Celsius degrees. Much better than Lead Acid batteries and VRLA batteries. 6. 100% safe / environmental friendly / maintenance free. LiFePO4 battery does not contain lead and any other heavy metal and toxic materials. It is environmental-friendly in use and disposal.7. Intrinsically safe.  The Battery does not explode when puncture and LiFePO4 material performance is stable in use.