Expected Life of Prius Batteries

Written by jonathan coley
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Raised awareness of the environment and consumers' desire to save money on energy costs have fuelled the green energy movement. Hybrid vehicles like the Toyota Prius are growing in popularity as a result, but many people question how long the batteries last on Prius models.

Two Battery Types

The Toyota Prius uses a combination of gas and electricity to reach its estimated 48 to 51 miles per gallon. The Prius has two separate batteries. One is your standard 12-volt car battery, and the other is a hybrid specific 201.6-volt sealed nickel-metal hydride (Ni-MH) battery.

12-Volt Battery

You can expect the Prius' 12-volt battery to last as long as your typical car battery, which is usually around three to five years. However, the weather conditions in your area, the amount you drive and how well you maintain the battery will affect how long it lasts.

Ni-HM Battery

According to Toyota, the 201.6-volt battery is intended to last the life of the vehicle, which it estimates is roughly 180,000 miles. Toyota's warranty offers free replacement on Ni-HM batteries for eight to 10 years or up to 100,000 miles. However, if the battery dies outside the covered period your replacement cost could be up to £1,950.

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