I think the claimed battery life of >100,000 miles is even more remarkable than the 0-60 time.
It's probably been arrived at by 250 miles (max range) x 400 charge cycles.
My experience of Li-ion batteries doesn't bode well for it - the batteries in my lap-top were totally unuseable after about 3 years, and I guess they were charged (from not fully flat, because you don't need to worry about that with Li-ion) approaching 1000 times.
|
|
Fastest battery powered microwave on sale :-)
|
Looks good, but I wonder if this isn't a better solution: world.honda.com/news/2006/4060925FCXConcept/
Gareth
|
|
|
|
My experience of Li-ion batteries doesn't bode well for it - the batteries in my lap-top were totally unuseable after about 3 years, and I guess they were charged (from not fully flat, because you don't need to worry about that with Li-ion) approaching 1000 times.
I'm optimistic for the same reason. My laptop is now 2 years old, gets a full recharge/discharge cycle almost every day, maybe 600 cycles so far. It still gives well over 3 hours of life and is perfectly capable of playing a long feature film on DVD. Unless it goes over a cliff I can't see it being "unusable" in a year's time though I may have to cut down on the Sergio Leone on camping trips. I reckon the quality of the power management system is your problem. Let's hope the Tesla's is done well.
|
|
Not the same experiance here. My laptops l-ion batteries now only hold 20 minutes charge after on year and about 100 cycles. If it were a car I would be livid.
|
Not the same experiance here. My laptops l-ion batteries now only hold 20 minutes charge after on year and about 100 cycles. If it were a car I would be livid.
I'd be livid if my laptop did that, but I don't think that's enough cycles to keep it happy. These things like to work. The molecules have to be kept on the move. In any case, have you tried a full discharge followed by a full recharge (12 hours)? You might be lucky and it just needs recalibrating.
|
|
|
|
they were charged (from not fully flat, because you don't need to worry about that with Li-ion)
I've heard the opposite to this - you need to flatten them and charge them fully every few times to keep them fresh. Although they're not as demanding as Ni-Cds by any means.
I suppose you can do this with an intelligent charging system where you can flatten the battery before charging, if it'll help.
|
Hmm.
This page here suggests not fully discharging:
www.batteryuniversity.com/parttwo-34.htm
OTOH, they also say frequent full discharges are required to keep the battery level indicator right, so it can be fully re-charged fully.
The trouble with these batteries is that service life can vary considerably, and performance does degrade quite rapidly over 2-3 years, whether the battery is used or not.
Apparently, these batteries like to be kept cool too, could be a problem in hotter climes and summer seasons. To get the best battery life you need to charge to about 40% level and keep the battery in a fridge!!
The article also points out the fairly obvious fact that more demanding applications result in shorter battery life.
IMO, the battery technology is not yet mature enough for use in daily transport. You might be able to live with a new useless 2-3 year old battery in a digital camera or laptop, but in a car that simply isn't good enough, especially with the cost of these large batteries.
The next-gen battery technologies could change all this.
|
|
Does this car need an auxiliary heater and electric powered aircon too?
|
|
|
|
It's probably been arrived at by 250 miles (max range) x 400 charge cycles.
That's the problem here. It might do 250 miles on the first charge cycle, but maybe 125 on the 400th cycle. You could still eke 100,000 miles out of it, but the range would keep getting shorter and shorter.
I would also expect that these cars would often be charged twice a day, once overnight and once upon arrival at your destination. That gives a battery life of less than two years. Eek!
None of this may matter much in a play thing like the Tesla, but should this technology be applied to family cars, it's shortcomings would be very quickly apparent.
Imagine the depreciation on a two-year old rep-mobile that needed a whole new battery pack? Cars over 5-6 years old would become uneconomical to repair and therefore worthless - much like modern consumer electronics that use this same battery technology.
|
|
How does it's carbon footprint in manufacture and disposal, the so called "embedded carbon", compare with an Elise etc, not very well I fear!
|
How does it's carbon footprint in manufacture and disposal, the so called "embedded carbon", compare with an Elise etc, not very well I fear!
Yes get a Lotus Exige 265E instead, 0-60 in 3.8 secs. and reduces CO2 output by 70% when run on E85. All we need now is a proper network of filling stations selling biofuels nationally.
www.channel4.com/4car/feature/feature.jsp?id=3554
|
|
|
|
|
![2022 Tesla Model 3 Performance AWD 4dr [Performance Upgrade] Auto](https://img.common.prod.group-mobility-trader.com/unsafe/trim/90x60/smart/filters:quality(70):no_upscale():format(webp)/https://cdn.uk.prod.group-mobility-trader.com/images/cas/df188b78744057d1619b57cd850cc581/3f9abdc8bba31211ade3afc9ce6db66d.jpg)
:no_upscale():format(webp)/https://cdn.uk.prod.group-mobility-trader.com/images/cas/6aa2a537739b89adcdca8986f979bf9d/21bb31290aaec9352ac204d5719eba49.jpg)
:no_upscale():format(webp)/https://cdn.uk.prod.group-mobility-trader.com/images/cas/f5c3663bb5b3b27f92c9f581f9545d5e/2d455b22240eb3eff3652339ff4369d8.jpg)
:no_upscale():format(webp)/https://cdn.uk.prod.group-mobility-trader.com/images/cas/149797acd87e087604e0f38feed480f0/8f992cc7af753c622a91c33a4e404f35.jpg)
