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#1
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2008 Prius 146,000 mi
When driving on city streets, vehicle drives fine. Once i go 50 mph+ the hybrid battery starts to drain quickly and i begin to lose power. Pull over and allow the battery to charge back up a bit and then it drives normal as long as I dnt go 50+mph. It does not trigger any codes. Took it to a hybrid shop and they could not figure it out. Their diagnostic conclusion was the Rest of the vehicle did not have any problems. Any ideas would be helpful. Appreciate it.
