03-15-2018, 12:48 PM
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#21 (permalink)
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Master EcoModder
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Chevy limited all the output on their EVs because the batteries typically get really warm with high amperage outputs so no high speeds homies, and people complained that the cars ate tires since they had too much torque *see the laughable 2011 Chevy Spark with 400lb-ft of torque lol*
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03-15-2018, 01:13 PM
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#22 (permalink)
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Corporate imperialist
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Dumping power from a lithium battery at about a 2.5C rate shouldn't heat it that much.
Unless the internal circuits can't take it.
I charge my LiFePO4 batteries at a 2 to 3 charge rate and they barely put off any heat.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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03-15-2018, 01:42 PM
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#23 (permalink)
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Administrator
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During the bulk charge phase, the batteries don't heat up much. Its when you want to get that last 10% out that things start getting warm. I would imagine internal resistance goes up as the battery gets more full. EVTV tested this out a couple years back with some CALB grey cells charging at some pretty high rate, 5C or so ? I forget exactly.
Discharging, they never really got warm/hot from what I've heard.
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03-16-2018, 11:27 AM
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#24 (permalink)
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Master EcoModder
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Who drives over 90MPH?
EV's are 2X as efficient as ICE's. What's not to like about that?
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03-16-2018, 11:46 AM
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#25 (permalink)
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Master EcoModder
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Quote:
Originally Posted by NeilBlanchard
EV's are 2X as efficient as ICE's. What's not to like about that?
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Electricity is twice as expensive here per kWh as gasoline. |
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03-16-2018, 11:56 AM
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#26 (permalink)
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Corporate imperialist
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Quote:
Originally Posted by NeilBlanchard
Who drives over 90MPH?
EV's are 2X as efficient as ICE's. What's not to like about that?
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I do.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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03-16-2018, 04:17 PM
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#27 (permalink)
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Master EcoModder
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I pay about 4.5¢ / mile to drive an EV, including regular maintenance. We have expensive electricity.
And in a month or so, that will drop to 1-2¢ / per mile; after our 10.1kW solar PV system is connected.
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03-16-2018, 05:33 PM
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#28 (permalink)
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EcoModding Apprentice
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Quote:
Originally Posted by NeilBlanchard
Who drives over 90MPH?
EV's are 2X as efficient as ICE's. What's not to like about that?
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On a bike, I do.
For a car and bike, it needs to be able to go 120mph, if you want it to still have some sort of performance at 80mph.
That means 75HP for a bike, and 150hp for an eco sedan minimum. |
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03-16-2018, 05:38 PM
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#29 (permalink)
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Master EcoModder
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Quote:
Originally Posted by ProDigit
On a bike, I do.
For a car and bike, it needs to be able to go 120mph, if you want it to still have some sort of performance at 80mph.
That means 75HP for a bike, and 150hp for an eco sedan minimum.
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I'm sure the Bolt has a ton of performance left at 89mph. It's governed at 90, it doesn't run out of power.
EDIT: The 2012 Leaf has 107HP, is governed at 93mph (150kph) and has no problems reaching it quickly. The Bolt has around twice that power. |
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03-16-2018, 05:52 PM
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#30 (permalink)
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Corporate imperialist
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I have some of the cheapest power in the country, that's why I'm looking to get an EV.
Tired of buying gas.
93mph? That's is sufficient.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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