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330 messages, Last post on Nov 13, 2008 at 12:13 PM
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Replying to: gagrice (Jun 25, 2008 2:41 pm) Note: I need to eat some of my words about the added-battery conversion system (that piggybacks the original battery with a new pack) being safer than systems like Hybrids Plus' that replace both the OEM battery and BMS. The particular failure mode I experienced is unique to two-battery systems, though a BMS failure could possibly produce similar results, depending on the PHEV battery's failure characteristics. The best advice with PHEV is have an automatic fire suppression system installed in you garage. If you can afford to waste $60 on a PHEV another $10k to protect your home is just good insurance. I would give the same advice to someone with a CNG car being filled over night by PHILL. |
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Replying to: gagrice (Jun 25, 2008 2:41 pm) I would speculate that they know it's a good business practice to provide any recall as a free service. I'm pretty sure they also know that the problem did not originate in the battery.
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Replying to: michael2003 (Jun 26, 2008 3:00 am) If Chevy uses the same brand of battery used in this fire for their new Volt it will be interesting to see how they plan to prevent fires caused by overcharging.
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Replying to: gagrice (Jun 26, 2008 4:54 am) Two points: 1. The charger needs to have a sensor that stops charging when the batteries are full. Note this is much easier to implement than a heat sensing system. The $6 aftermarket charger for my cell phone (li-ion) senses the full charge, so it is hard for me to believe that a custom charger for a plug-in car would not also account for a full charge and stop supplying power. To me this means that the batteries overheated while being charged (NOT after being charged), leading to the second point. 2. Customers are going to complain if their batteries are not fully charged when they ran their charger all night, but it cut off due to heat in the batteries. The issue remains the same - do the Li-Ion batteries heat up more than NiMH batteries as they charge, and if so can the problem be fixed?
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Replying to: stevedebi (Jun 26, 2008 11:01 am)
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Replying to: tpe (Jun 26, 2008 12:29 pm) On June 7, 2008, the converted Prius plug-in hybrid electric vehicle (PHEV) owned by Central Electric Power Cooperative in Columbia, SC, was destroyed by an internal fire that occurred during a routine drive. Thankfully, there were no injuries. But the converted Prius was destroyed. The cause of the fire is not known. Full story: link title This raises the question if the charging device is part of the original Prius or aftermarket. Of course Toyota can not be held responsible for changes to the original Prius. I am sure Toyota is not thrilled having their baby kluged up and displayed all charred from a fire.
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Replying to: gagrice (Jun 26, 2008 4:11 pm) I would never get an aftermarket phev setup. These systems are so complex, and the components so unproven, that I want Toyota's or GM's neck on the line (along with mine). |
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Replying to: gagrice (Jun 26, 2008 4:11 pm)
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Replying to: tpe (Jun 27, 2008 6:57 am) Boulder, Colo.-based Hybrids Plus has advised all of its conversion owners to stop driving the vehicles until further information is available. According to the press release, forensic examinations have not been able to conclusively identify the cause of the fire, but established that the battery cells – which, according to plug-in advocacy group CalCars.org came from A123Systems – were not the reason. http://www.greentechmedia.com/articles/plug-in-hybrid-catches-fire-1032.html PS I tried to find info from the owner of the Prius just what kind of mileage they were getting. They did not mention it on their website. They have a total of 7 of these hybrid conversions from Hybrids Plus in Colorado.
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Replying to: gagrice (Jun 27, 2008 12:35 pm) I think it is an honest log. As you can see mpg varies from 171 to 74. The former is for exclusively short trip city driving under 40 mph where the battery range sufficed for most days. The later is for mostly highway driving at 60-65 mph. This is as expected. Most people will get in the 90-100 mpg range. http://www.greenhybrid.com/compare/mileage/car/5291.html
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