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Hybrid Vehicles 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
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Replying to: stevedebi (Jul 23, 2004 12:36 pm) |
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On battery life expectancy: NOTHING with batteries that consumers own has an 8-year battery life. This was part of the debate that forced Toyota to warranty the Hybrid batteries for 8 years 150k miles. You may find it interesting as I did. This has been my skepticism from the start. Although with 8 years and 150k miles I would not fret over buying a hybrid. http://solstice.crest.org/discussion/ev/current/msg00392.html |
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Replying to: gagrice (Jul 24, 2004 3:45 pm)
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Replying to: rfruth (Jul 24, 2004 4:25 pm) |
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Replying to: rfruth (Jul 24, 2004 4:25 pm) |
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Replying to: gagrice (Jul 24, 2004 3:45 pm) If your cell-phone shutdown at 40% and refused to power back up until you plugged it in, the battery would last dramatically longer. But instead, users drain the thing to totally dead on a regular basis. That's a huge difference from the way a system like HSD in Prius works. JOHN |
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Replying to: gagrice (Jul 24, 2004 4:34 pm) JOHN |
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Replying to: gagrice (Jul 24, 2004 4:34 pm) While that is true for a "mild" hybrid, it is not for a "full" hybrid like Prius. In fact, 100% of the time the engine is providing thrust to the wheels it is also powering the generator-motor. The resulting electricity is immediately used by the thrust-motor. Preventing the battery-pack from being used as much obviously helps to extend the life of it. JOHN |
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Replying to: john1701a (Jul 24, 2004 7:06 pm)
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Replying to: gagrice (Jul 25, 2004 7:30 am) 04 Prius battery ECU will not let the battery discharge below 40% SOC. The rest of 60% of the 1.31 kWH battery can provide 28 hp for 135 seconds. If you climb the hill at 60mph and the hill is so steep that the battery provides all 28hp for 135 seconds, Prius can trouble 2.25 miles before the battery SOC get to 40%. It is when the turtle icon appears. If the hill is not as steep and Prius main ECU request only 14hp from the battery, Prius can go up 4.5 mile long hill. That's a very long hill! I know you had bad experience with batteries. Let me give you another graph which shows the Cylinder D-shape batteries(Used in Japanese Prius) and Prismatic batteries(Used in US Classic Prius). They tested over 180,000 miles for Cylinder and 150,000 miles for Prismatic. Note that 04 Prius batteries has less Internal Resistence than last generation Prismatic modules. Basically, these batteries can keep going and going and going .....  Dennis
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Hybrid Vehicles The Great Hybrid Battery Debate
