/Prius-Battery-2010-

Summary of information regarding the Prius Battery

Toyota Prius Battery Pack Specifications (Pre-2010 Models)

General Information

  • Battery Type: Nickel-Metal Hydride (NiMH)
  • Configuration:
    • Cells per Module: 6 cells
    • Modules per Battery: 28 modules

Electrical Specifications

  • Nominal Voltage:
    • Per Cell: 1.2V
    • Per Module: 7.2V (1.2V x 6 cells)
    • Per Battery: 201.6V (7.2V x 28 modules)
  • Nominal Capacity: Approximately 6.5 Ah

Voltage Specifications

  • Voltage at 0% State of Charge (SOC):
    • Per Cell: ≈1.0V
    • Per Module: ≈6V (1.0V x 6 cells)
    • Per Battery: ≈168V (6V x 28 modules)
  • Voltage at 100% SOC:
    • Per Cell: 1.45V (up to 1.5V under certain conditions)
    • Per Module: 8.7V to 9V (1.45V x 6 cells)
    • Per Battery: 243.6V to 252V (8.7V to 9V x 28 modules)

Conservative Charging Guidelines

  • Voltage Cutoff (to avoid deep discharge):
    • Per Cell: 1.1V
    • Per Module: 6.6V (1.1V x 6 cells)
    • Per Battery: 184.8V (6.6V x 28 modules)
  • Float Charging Voltage (for a conservative charge):
    • Per Cell: 1.4V
    • Per Module: 8.4V (1.4V x 6 cells)
    • Per Battery: 235.2V (8.4V x 28 modules)

Notes

  • These specifications are typical for pre-2010 Toyota Prius models and can vary slightly depending on specific vehicle models and battery conditions.
  • The Prius' battery management system automatically manages charging parameters to optimize battery life and performance.