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What are the failure symptoms of a Prius Hybrid battery?

I have a 2009 Toyota Prius and it’s been a workhorse for me since I bought it. Recently, it’s been acting a bit funny and I think the battery might be kaput. What are a few symptoms of a bad Prius Hybrid battery so I can make sure?

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Eric Schad · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
It’s hard when those old, reliable cars start showing their age! From a declining fuel economy to shorter battery-charging stints, there are a few signs to look out for to know whether or not your battery is losing its luster.
Despite the
Toyota Prius
remaining one of the most trusted cars on the market, watch for these failure symptoms of a Prius Hybrid battery:
  • A steep drop-off in fuel economy
  • The internal combustion engine running erratically
  • Problems with battery charging
  • Fluctuations in the state of the charge
If you find that you need a new battery, expect to pay about $2,000 to $5,000 between parts and labor. However, this depends on whether you buy a new or refurbished battery.
Since you’ve had your Prius for a lengthy period, remember that all good things can come to an end. But that doesn’t mean you can’t get a shiny new Prius to replace the old one. If you do, shop around with the
Jerry
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