Hybrid Battery Survey-Gen2 Prius 2004-2009

My 2009 Gen 2 was totaled by a semi trailer at 110,000 miles, so will never have battery issues.

 

I just entered my data, 190000 km (118000 miles) and no failures on my 2004. Hopefully all forum regulars will vote in this poll so that we get as many data points as possible.

 

Poster from a few days ago...mine failed at 145,000 miles. 2006 model. Driven in city, traffic, freeway, desert, mountains, heat, heavy weight.

New HV battery installed under warranty and all seems good. I thought it might be a refurbished battery, but they said it was brand new.

 

2005 with 186,000 miles one bad battery cell that I replaced myself for $45....toyota wanted $3200 for a new pack..

 

I plan on doing the exact same thing if and when my hv pack starts acting up.

 

I believe that a question regarding how often the car was driven and average daily mileage would yield a more accurate picture of battery life if added to the survey. It seems that the batteries of daily drivers far outlast those of vehicles driven occasionally. This might explain the cause of premature failure.

 

There are many factors that influence hybrid battery longevity other than straight miles driven, but it's difficult to survey them all (and there may not be enough data points to even try). Anecdotally it seems that high temperatures and mountainous terrain are two of the biggest factors, though simple calendar age probably plays a roll as well.

 

I have read many posts that indicate high temperatures are detrimental to the battery life. Living in and driving in the Adirondacks on a daily basis has not affected my battery this far with wintertime temps dropping as low as -35F. Wondering if heat and mountainous terrain vs. cold and mountainous terrain yields varying results. The Prius 3 with the solar package would be a good option for those living in warmer climates as this would keep the temperature of the interior from spiking during midday while parked.

Curious as to how many have / have not had the hybrid battery replaced. Nice survey - thanks for posting!

 

Yes I agree with you.

 

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I think you'll find this is a calendar age issue and not a frequency of usage issue. Put simply, less frequently driven Prius have a higher calendar age for any given mileage.​

 

Yes your point is also right. Once I didn't drive my baby for a few days and the HV battery shwns only three bars and the engine needed to work hard to charge. Glad that the battery back to normal in a short time. So my HV battery is still healthy.

 

Mileage as of this post 151,259. Purchased used 04/26/11 with 67K on the odometer. According to meticulous records this is the original HV battery. Daily driver, 700 miles a week. Monitor SOC routinely. No indications of large variations in SOC or loss of charge after several days of non-use. Exposed to Arizona heat but keep A/C at 73 F when driving and use windshield reflector when parked. I can hear the battery cooling fan after making the vehicle ready but I've never heard it running at a higher speed. There is a 2000 foot elevation gain from home to work, no steep climbs just regular interstate grade. I drive at various times of the day or night since I work rotating shift. Usually by the time I arrive back home (the more or less downhill leg) the SOC is all green bars.

 

Fail @ 98,523. Dealer lies need to be exposed.

 

Original battery now close to 100,000 miles on a 2008 driven most days.

John (Britprius)

 

I just voted battery has not failed below 100K miles - - 2007 @ 89,000 miles. I've only had it for a few weeks and don't know it's history other than it was registered in AZ, CA and FL before MD.