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The Great Hybrid Battery Debate

669 messages,  Last post on Apr 06, 2009 at 2:32 PM

You are in the Hybrid Vehicles Forum. Your Host is pf_flyer

What is this discussion about? Hybrid Cars


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#229 of 669
Re: Prius MPG? w/o electric [falconone] by stevedebi
May 09, 2005 (3:11 pm)
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Replying to: falconone (May 09, 2005 4:05 am)

"The car can move on its own in the event you run out of fuel. "
 
The Prius won't run very far on just the battery, but the issue here is: will it run without any traction battery? The answer is no, it won't - and it wasn't designed to run that way. My research indicates that the traction battery has to be at least 20% charged or the car won't even start, much less run.
 
I started the "software trouble" forum not because of numerous failures, but because the Prius is far more complex in terms of computer controls than other cars. I don't suppose the failure rate is any higher than other new models; it is the type of failures that is of interest.
#230 of 669
New info........ by larsb
May 11, 2005 (8:32 am)
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There is a user on another unmentionable forum who has a 2003 Civic Hybrid he bought used at 128,000 miles and his car still has the original hybrid battery. He has put 3,000 miles on the car, so it sits at 131,000 today.
 
Hope anyone who is concerned about lifetime of the battery sees this and realizes that they are not going to die at 90,000 miles......
#231 of 669
Re: New info........ [larsb] by majors2000
May 11, 2005 (12:00 pm)
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Replying to: larsb (May 11, 2005 8:32 am)

Exactly....
 
Toyota and Honda haven't designed their cars to only last as long as the warranties. Besides, most don't keep their cars for longer than 8 years /100K miles.
 
In an article I just read in the San Diego Union Tribune: according to the CA DMV, in the state of California the average time a person has the same vehicle is 42 months (before trading or selling it).
 
All if this questioning the battery is nonsense. The Hybrid technology is nothing new. Toyota produced the first generation Prius in 1997 (for sale in Japan), thus making the Hybrid technology nine years old. Since then they have launched the Hybrid Estima minivan and Crown sedan. Now here in the U.S. you can now purchase a Lexus RX400h, and starting next month a Toyota Highlander Hybrid. Not to mention next years launch of the Lexus GS Hybrid. Look out Ford, Chevy, and Dodge . There are rumors of a redesigned bigger Tundra in Hybrid/Diesel in the works for a 07' model, just in time for the Diesel fuel to be refined Jan 1, 2006.
 
Toyota is dedicated to the Hybrid technology, and with is reputation for reliability and the amount of time spent researching the Hybrid technology. I think you will see 2nd and 3rd owners with them on the road for many miles, just like the every other Toyota. You will hear people say as they do now "It just keeps running".
 
#232 of 669
Question by andrelaplume
May 18, 2005 (6:52 am)
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A host pointed me here....w/out al l the gory details...I usually keep my car 7 years. It appears the batteries in a Prius could last this long. But what of the resale value of my car?. At least a Corolla would be worth a few $K......will the Prius have any monetary value or be ready to be recycled itself? I think the prices need to come down a bit before these suckers become fully accepted on the road...though the oil companies are adjusting their prices for their increased gas milage...or am I just pessimistic? Also I am a bit disapointed that gas is still involved in these cars of the future!
#233 of 669
Re: Question [andrelaplume] by sinepman
May 18, 2005 (7:21 am)
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Replying to: andrelaplume (May 18, 2005 6:52 am)

First off, these are NOT future cars. They're merely a segway to the next level. What is that level? No one knows for sure. What will the car be worth 7 yrs from now? That depends on the price of what the battery replacements (if at all needed) will be. It's a crap shoot that many folks are willing to take. I intend to take the plunge soon too. I have faith in this technology.
#234 of 669
Re: Question [sinepman] by eaglei
May 22, 2005 (4:08 pm)
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Replying to: sinepman (May 18, 2005 7:21 am)

I have a 2001 Prius that I have around 132,000 miles on right now. I recently stopped in at a dealer to check the new Prius' out and to find out what I could get for trade in... I am being offered $10,000 from the dealer. Not too shabby for a used vehicle trade in....
#235 of 669
Re: Question [eaglei] by falconone
May 22, 2005 (4:16 pm)
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Replying to: eaglei (May 22, 2005 4:08 pm)

That's excellent!! Imagine what you could get for it privately!! Are you going to get the new one?
#236 of 669
Re: Question [falconone] by eaglei
May 23, 2005 (1:31 pm)
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Replying to: falconone (May 22, 2005 4:16 pm)

Absolutely! I am sold on the Prius. I drive so much with my business that I calculated in the time that I've had it, I've saved over $5000 in gas. (Previously I drove a Lexus)
#237 of 669
Re: Battery life and charging[electrictroy] by rx400_owner
May 23, 2005 (5:23 pm)
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Replying to: electrictroy (Nov 17, 2004 7:57 am)

"NiMH Battery chemistry is weird. If you exceed 90%, or drop below 60%, you stress the battery and cause damage. That's why pure electric cars have to replace every 100,000 miles... they damage their battery from overcharging/emptying. "
 
You said you researched it so I'm curious where you got that information. I've looked through the IEEE Explore for reviewed articles on this topic and I haven't found anything to substantiate it. I've seen a white paper (not a reviewed article) on Lithium Hydride (different technology I know but there doesn't seem to be a lot published where I'm looking) that claims that depth of discharge is not a factor for them - only the cumulative amount of charge/discharge with over-heating and over-charging carrying additional life penalties.
#238 of 669
Re: Battery life and charging[electrictroy] [rx400_owner] by stevewa
Aug 07, 2005 (10:56 pm)
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Replying to: rx400_owner (May 23, 2005 5:23 pm)

The biggest risk with any series-wired battery is reverse charging one or more cells. Once that happens it's very hard to get things working right again, as the reverse charged cell tends to reverse charge its neighbors.
 
The best way to reduce the risk of reverse charging is to never let the battery drain down very far. Thus the programming in the computers of these cars to use only a narrow range of the total capacity of their batteries (e.g. 40-80 percent in the Prius).

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