Toyota Prius Battery

FAQ:

Q: What battery does the Toyota Prius use exactly?
A: The Prius uses a Sealed Nickel-Metal Hydride Battery (Ni-MH, for short) with a power output of 28 horsepower (21 Kw) and 201.6V Voltage. There is another smaller auxillary battery (12 Volts), which powers the Prius computer.
Q: How long will a battery last before it is replaced?
A: The Prius battery is designed to last the life of the car. According to Toyota, this is around 180,000 Miles.
Q: How are batteries disposed of after they die?
A: The batteries can actually be recycyled. A full summary of the process can be found on Toyota's Website.
Q: How much will it cost to replace?
A: It should be noted that the Prius traction batteries are under warranty for 8-10 years or 100,000 miles, and so will be replaced for free before then in the case of failure. However, should the battery fail outside this timeline, the estimated cost of traction battery replacement is $3,000.
Q:What is the battery's role in acceleration?
A:When rapid acceleration is needed, the battery power will "help" the gasoline engine, reducing the consumption of fuel during this period.