I don't think electric cars will ever replace internal combustion engines

[Vodka]

Back to pure electric cars (like Tesla and Leaf)

Palagi nilang nababanggit yung distance na kaya nung car.

Gaano kaya tatagal yung battery nya in traffic with A/C, radio, navigation and gadgets charging...

I've been doing some research on electric A/C for VW Beetle, and ang lakas nya sa battery...

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well car a/c needs to be more powerful than a small room a/c. like i have in front of me a 0.75 hp a/c. a subcompact would probably be 3hp or about 2.2kw

so suppose at 50% duty cycle a 1.1 kilowatt-hour battery pack will run the a/c for 1 hour. but how big is a 1.1kwh battery pack?

well are you familiar w/ those small 18650 lithium-ion cells? like for vapes? the higher capacity ones have about 12wh per cell. so 1100/12 = 92 cells. that's smaller than a loaf of bread

[yebo]

well car a/c needs to be more powerful than a small room a/c. like i have in front of me a 0.75 hp a/c. a subcompact would probably be 3hp or about 2.2kw

so suppose at 50% duty cycle a 1.1 kilowatt-hour battery pack will run the a/c for 1 hour. but how big is a 1.1kwh battery pack?

well are you familiar w/ those small 18650 lithium-ion cells? like for vapes? the higher capacity ones have about 12wh per cell. so 1100/12 = 92 cells. that's smaller than a loaf of bread

those 18650 batteries don't last long. maybe 300 discharge cycles, even less. even those "1000 cycles" batteries don't last as promised. and at the end of their lives they have something like 30-40% performance as when new. what will be the acceptable performance degradation for a ship? an aircraft? that is one big expense replacing batteries. and one helluva land fill.

[Vodka]

those 18650 batteries don't last long. maybe 300 discharge cycles, even less. even those "1000 cycles" batteries don't last as promised. and at the end of their lives they have something like 30-40% performance as when new. what will be the acceptable performance degradation for a ship? an aircraft? that is one big expense replacing batteries. and one helluva land fill.

you need to get up to date w/ battery tech. look up "NCA" chemistry li-ion. tesla uses commodity panasonic "NCA" 18650 cells ;) 8-year warranty. projected life, over 10yrs. after which they could be used as stationary storage.

i have no doubt they'd last that long coz i have here some 2009 production panasonic NCA cells that were 2900mah new. now after nearly 10yrs a few of them are still exceeding 2900mah

you just have to limit the exposure of the cells to BOTH temperature and voltage extremes. that means not sitting for a long time near 4.20v and 2.5v (full and empty, respectively) at elevated temperatures. if you do this you could cycle thousands of times and tesla drivers are already doing that now

[kinyo]

For as long as their cost keeps going down ... then welcome EV cars.

Halos lahat na yata ng major carmakers joined the bandwagon. Some countries have plans to ban ICE on cars na rin. So that is where we're going.

Instead of tune-up, we'll have firmware updates on our cars.

I hope that someday solar energy will provide much of the energy needed by our cars. If we get better batteries and solar panels, performance-wise and cost-wise, we might not need to connect to meralco for charging.

Leave the ICE for those big machines.