NHTSA investigates the electric vehicles for fire risk

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VERY INTERESTING!

The National Highway Traffic Safety Administration has opened an investigation that is slated to spend the next three years investigating whether modern electric vehicles with lithium ion batteries pose a significant fire risk to consumers from overcharging.

ha, good way for the administration to get a salary for next 3 years!

i did around 13000 km altogether since last may and am using big lipos pack without any extra protection like BMS or PCM or LVC cut-off board and i have never had any problem.
Call me silly and unresponsible but it is like wearing a helmet on a bike or belts in the car ....
 
Now I want to know how many electric golf carts, NEVs, forklifts etc are already driving around the USA... have been for decades? Hundreds of thousands?

Lock
 
Now I want to know how many electric golf carts, NEVs, forklifts etc are already driving around the USA... have been for decades? Hundreds of thousands?

Aren't those all lead-acid though? Maybe some NEVs are lipo?
 
REdiculous said:
Aren't those all lead-acid though? Maybe some NEVs are lipo?
Yah, good point. Probably 99.9% flooded lead acid... No fancy BMSs to fail... maybe a little hydrogen off-gassing... But that NHTSA report doesn't EVen give electrics a mention:
During 2008, U.S. fire departments responded to an estimated 236,000 fires involving
vehicles of all types, including highway and other non-road vehicles such as water vessels,
aircraft, construction, yard, and agricultural vehicles. These fires caused an estimated 365
civilian deaths, 1,065 civilian injuries, and $1.5 billion in direct property damage. Vehicle
fires, as well as civilian deaths and injuries caused directly by these fires, were at their
lowest point in 2008 since NFPA began tracking vehicle fires and losses with its current
methods.
In 2008, an estimated 207,000 highway vehicle fires caused 350 civilian fire deaths, 850
civilian fire injuries, and $1.2 billion in direct property damage. From 1980 to 2008, these
fires fell a cumulative 55%, and have been hitting new lows every year since 2002.
Civilian deaths from highway vehicle fires fell 4% from 365 in 2007 to 350 in 2008, two
consecutive years of record lows. Civilian injuries in highway vehicle fires fell 43% from
1,500 in 2007 to 850 in 2008. From 1980 to 2008, these injuries fell a cumulative 70%.
Direct property damage, adjusted for inflation, rose 4%.

Still just looks like they're having a "slow day"


If I were in an overturn or collision situation I'd much rather be dealing w/a battery pack than a tank of gasoline...
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So, basically they are saying that they cant trust people not to overcharge batteries (even though all EV's have battery management systems to stop this happening) maybe they should do a study to determine if they can trust consumers to keep filling their own gas tanks with highly flammable liquid. I wonder whats the most deadly if mistreated badly... 50kwh of lithium batteries or 20gallon of gas?
 
theRealFury said:
I wonder whats the most deadly if mistreated badly... 50kwh of lithium batteries or 20gallon of gas?
Hehe... wonder no more. Well, just looking at energy content, gas is valued anywhere from 9000-9700Wh/L. So 20 UK gals... `bout 818 kWh. Then there's power density. When ya "short" gasoline...

Lock
 
Lock said:
theRealFury said:
I wonder whats the most deadly if mistreated badly... 50kwh of lithium batteries or 20gallon of gas?
Hehe... wonder no more. Well, just looking at energy content, gas is valued anywhere from 9000-9700Wh/L. So 20 UK gals... `bout 818 kWh. Then there's power density. When ya "short" gasoline...

Lock

Lol, well i was actually thinking of US gallons, as cars in UK usually have ~12 UK gallon tanks. But evenv with 12UK gallons its still looking at close to 10x the energy content so no contest.
 
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