Replaced the hybrid battery in my 2006 Prius yesterday. (March 16, 2016) The car has 116858 miles and is just over 10 years old. I was surprised that it went out and my shop got a rebuilt Dorman Products battery for $2540 installed. It has a 2 year part and labor warranty and a 3 year part only warranty which is longer than I'll keep the car before getting a new Prius within a year or two.
Generally the Dorman batteries have a reasonably good reputation here, or at least they honor their warranty. Personally though I would have spent just a few hundred more for a new battery from Toyota, one that would likely last another 10 years or more. I really don't like the idea of paying almost new prices for second hand consumables.
+1 $2071 New HV Batt. 2007 Toyota Prius Parts - Toyota of San Bernardino Online Parts Store The ECUs inside the old Hv Batt would have to be transfered into the new HV Batt.
Exstudent, more than just the ECU must be transferred over. There was a change in practice earlier this year. If people go the route of a new pack they need to be more methodical to be sure they don't miss transferring over all the missing parts. Also, just because the price is online does not mean the dealer will actually sell it to an untrained consumer. Definitely call the dealer and confirm before posting their info as a source or removing the pack in anticipation of replacement.